Archive for October, 2008
Digital Camera: a Buyers’ Guide
A digital camera takes still photographs or videos or both by recording the images on a light-sensitive sensor digitally. Most compact digital still cameras can record moving video and sound as well, apart from still photographs. The sales and popularity of digital cameras have increased now compared to the 35mm film cameras.
Digital cameras have a feature for viewing the image that is recorded immediately on the Camera display screen, the feature that is not available in film cameras. Other features include such as the facility to capture a lot of images on a small memory chip, record video along with sound, edit the images, delete the images not required etc. Digital cameras are now available along with many devices ranging from mobile phones and PDAs to vehicles.
The camera perhaps has been affected more by the digital technology than any other products. The digital cameras are not a new phenomenon. The first digital camera was released by Kodak in the U.S. market around 15 years ago. The DCS-100 model at that time with 1.3-mega pixels was available for about $13,000. The digital cameras have emerged with more features and are available at comparatively lesser prices, even to the extent of $80 at select stores.
The biggest benefit of Digital camera technology is the storage capability. You can view the photos on the camera itself, on a web page, a computer monitor, or on paper after printing. The digital camera can be connected to the printer directly through the USB port for printing pictures. People can afford to buy a digital camera today as the prices have fallen with the availability of more features.
It is important for you to know the issues of image resolution for comparing digital camera models. The unit of graphical representation used for displaying digital data by Digital cameras is called Mega Pixel (MP). More the mega pixels, the higher the resolution of the final image. Still you need to compare digital camera images recorded with your actual requirements.
Some typical resolutions found on Digital cameras are:
256×256 – This is available with very cheap cameras. Picture quality is unacceptable.
640×480 – Suitable for posting pictures over a web site or for sending pictures by email.
1216×912 – This resolution is good for printing pictures.
1600×1200 – This is a High resolution standard with around 2 million total pixels.
2240×1680 – This is available on most 4 mega pixel cameras.
4064×2704 – This is available on high-end digital camera with 11.1 mega pixels.
Some High-end consumer cameras can record pictures of over 12 million pixels. Most professional cameras have 16 million pixels. Large format cameras have 20 million pixels. For comparison sake, it is stated that the quality of 35mm film is approximately around 20 million pixels. Some types of Digital cameras are Point and Shoot, Semi-Professional, Bridge and SLR.
You need to know the complete package offered when you compare the prices of digital cameras. You can look for the availability of image-editing software, carry case, add-on Memory card and USB cable for working on your computer, when you want to compare the prices and the features offered. Other general features that you can look into are the availability of an LCD screen, a timer, a built-in flash, a date & time stamp, optical zoom feature and optical zoom lenses of good quality.
By: Russ Snapper
About the Author:
Digital cameras have a feature for viewing the image that is recorded immediately on the Camera display screen, the feature that is not available in film cameras. Other features include such as the facility to capture a lot of images on a small memory chip, record video along with sound, edit the images, delete the images not required etc. Digital cameras are now available along with many devices ranging from mobile phones and PDAs to vehicles.
The camera perhaps has been affected more by the digital technology than any other products. The digital cameras are not a new phenomenon. The first digital camera was released by Kodak in the U.S. market around 15 years ago. The DCS-100 model at that time with 1.3-mega pixels was available for about $13,000. The digital cameras have emerged with more features and are available at comparatively lesser prices, even to the extent of $80 at select stores.
The biggest benefit of Digital camera technology is the storage capability. You can view the photos on the camera itself, on a web page, a computer monitor, or on paper after printing. The digital camera can be connected to the printer directly through the USB port for printing pictures. People can afford to buy a digital camera today as the prices have fallen with the availability of more features.
It is important for you to know the issues of image resolution for comparing digital camera models. The unit of graphical representation used for displaying digital data by Digital cameras is called Mega Pixel (MP). More the mega pixels, the higher the resolution of the final image. Still you need to compare digital camera images recorded with your actual requirements.
Some typical resolutions found on Digital cameras are:
256×256 – This is available with very cheap cameras. Picture quality is unacceptable.
640×480 – Suitable for posting pictures over a web site or for sending pictures by email.
1216×912 – This resolution is good for printing pictures.
1600×1200 – This is a High resolution standard with around 2 million total pixels.
2240×1680 – This is available on most 4 mega pixel cameras.
4064×2704 – This is available on high-end digital camera with 11.1 mega pixels.
Some High-end consumer cameras can record pictures of over 12 million pixels. Most professional cameras have 16 million pixels. Large format cameras have 20 million pixels. For comparison sake, it is stated that the quality of 35mm film is approximately around 20 million pixels. Some types of Digital cameras are Point and Shoot, Semi-Professional, Bridge and SLR.
You need to know the complete package offered when you compare the prices of digital cameras. You can look for the availability of image-editing software, carry case, add-on Memory card and USB cable for working on your computer, when you want to compare the prices and the features offered. Other general features that you can look into are the availability of an LCD screen, a timer, a built-in flash, a date & time stamp, optical zoom feature and optical zoom lenses of good quality.
By: Russ Snapper
About the Author:
Visit http://www.digitalcamerapro.info for finding the best and cheap digital cameras of all types and models.
Digital Camera Basics
An electronics on-line discussion forum contains a story about an elderly woman who wanted a simple camera to take pictures of her grandchildren. When she received a digital camera for Christmas, she looked puzzled for a moment and then asked, “Where do you put in the film?” This humorous example demonstrates how the revolutionary technology of digital cameras may be mystifying for those who have difficulty grasping the concept of a “filmless” camera! For almost a century, photography enthusiasts sagely discussed such topics as 35mm film, light meters and F-stops; today, digital cameras have made such topics all but obsolete.
Howstuffworks.com contains an article by Gurevich, Karim, and Wilson that greatly simplifies an explanation of how digital cameras work. Very simply, they explain that CDs, mp3’s, and DVDs all share the same technology: they convert traditional analog “wave” data into digital data based upon “bits.” In so doing, this radical shift in technology has changed greatly – and forever – how we do things and what has become possible including digital “filmless” cameras. While film cameras depend upon chemical and mechanical processes, digital cameras contain a computer that records images electronically.
In 1994, Kodak and Apple developed and sold the first digital cameras. Today there are hundreds of models to choose from, depending upon the type of pictures you need, the complexity with which you’re comfortable, and what digital camera you can afford. For everyday use, most people prefer a “point and shoot” camera that isn’t complex, takes good quality pictures that can be loaded onto computers or printed for personal use and to send to friends, and is affordable. According to a number of consumer guides and customer reviews, the top ten digital cameras in the low, mid, and high price ranges are:
1. Nikon D300 (high)
2. Canon EOS 5D (high)
3. Canon EOS 40D (high)
4. HP Photosmart M547 (low, great value)
5. FujiFilm Finepix S700 (mid)
6. GE A730 (mid)
7. Nikon D200 (high)
8. Canon EOS Digital Rebel Xsi (high)
9. Panasonic Lumix DMC-FZ18 (mid)
10. Canon EOS 30D (high)
The point should be made that what constitutes a “great” digital camera is usually in the eye of the beholder. One person’s “top ten” list is almost certain to differ from another person’s. For example, a digital camera that is making devoted converts is the Casio Exilim series that sells in the mid-level price range, depending upon your digital camera photography needs. On the other end, Digital Camera.com rates the Pentax Optio E-10 as “the worst digital camera ever.”
With all these differing opinions, what’s the best way to buy the digital camera that’s right for you? If you simply want to take personal pictures, choose a digital camera that has at least three megapixels. This will give you good quality pictures at a very affordable price. Remember that the higher the number of megapixels, the better quality your pictures will be, but the digital camera you choose will be more complex and more expensive. Also consider the size and shape of the camera; is it easy for you to carry in your purse or pocket? Finally, be sure your digital camera has at least 256-512 megabites of space on its memory card so you won’t have to buy additional memory cards. Taking all these factors into consideration will help you enjoy capturing treasured memories for years to come.
By: Ernie Delgado
About the Author:
Howstuffworks.com contains an article by Gurevich, Karim, and Wilson that greatly simplifies an explanation of how digital cameras work. Very simply, they explain that CDs, mp3’s, and DVDs all share the same technology: they convert traditional analog “wave” data into digital data based upon “bits.” In so doing, this radical shift in technology has changed greatly – and forever – how we do things and what has become possible including digital “filmless” cameras. While film cameras depend upon chemical and mechanical processes, digital cameras contain a computer that records images electronically.
In 1994, Kodak and Apple developed and sold the first digital cameras. Today there are hundreds of models to choose from, depending upon the type of pictures you need, the complexity with which you’re comfortable, and what digital camera you can afford. For everyday use, most people prefer a “point and shoot” camera that isn’t complex, takes good quality pictures that can be loaded onto computers or printed for personal use and to send to friends, and is affordable. According to a number of consumer guides and customer reviews, the top ten digital cameras in the low, mid, and high price ranges are:
1. Nikon D300 (high)
2. Canon EOS 5D (high)
3. Canon EOS 40D (high)
4. HP Photosmart M547 (low, great value)
5. FujiFilm Finepix S700 (mid)
6. GE A730 (mid)
7. Nikon D200 (high)
8. Canon EOS Digital Rebel Xsi (high)
9. Panasonic Lumix DMC-FZ18 (mid)
10. Canon EOS 30D (high)
The point should be made that what constitutes a “great” digital camera is usually in the eye of the beholder. One person’s “top ten” list is almost certain to differ from another person’s. For example, a digital camera that is making devoted converts is the Casio Exilim series that sells in the mid-level price range, depending upon your digital camera photography needs. On the other end, Digital Camera.com rates the Pentax Optio E-10 as “the worst digital camera ever.”
With all these differing opinions, what’s the best way to buy the digital camera that’s right for you? If you simply want to take personal pictures, choose a digital camera that has at least three megapixels. This will give you good quality pictures at a very affordable price. Remember that the higher the number of megapixels, the better quality your pictures will be, but the digital camera you choose will be more complex and more expensive. Also consider the size and shape of the camera; is it easy for you to carry in your purse or pocket? Finally, be sure your digital camera has at least 256-512 megabites of space on its memory card so you won’t have to buy additional memory cards. Taking all these factors into consideration will help you enjoy capturing treasured memories for years to come.
By: Ernie Delgado
About the Author:
Ernie Delgado is an avid amateur photographer. His hobby is at Digital Camera Ferret – You can read reviews and participate in a digital camera auction.
Posted in Digital Cameras | 
Tags: Century Photography, Digital Camera Basics, Photography Enthusiasts | 
No Comments »Digital Camera Basics-resolution, Exposure, Focus, and Storage
Resolution
The amount of detail that a camera can capture is called the resolution, and it is measured in pixels. The more pixels a camera has, the more detail it can capture and the larger pictures can be without becoming blurry or “grainy.” High-end consumer cameras can capture over 12 million pixels. Some professional cameras support over 16 million pixels (megapixels), or 20 million pixels for large-format cameras. For comparison, it has been estimated that the quality of 35mm film is about 20 million pixels.
Exposure and Focus
Just as with film, a digital camera has to control the amount of light that reaches the sensor. The two components it uses to do this, the aperture and shutter speed, are also present on conventional cameras.
Aperture: The size of the opening in the camera. The aperture is automatic in most digital cameras, but some allow manual adjustment to give professionals and hobbyists more control over the final image.
Shutter speed: The amount of time that light can pass through the aperture. Unlike film, the light sensor in a digital camera can be reset electronically, so digital cameras have a digital shutter rather than a mechanical shutter.
These two aspects work together to capture the amount of light needed to make a good image. In photographic terms, they set the exposure of the sensor.
In addition to controlling the amount of light, the camera has to adjust the lenses to control how the light is focused on the sensor. In general, the lenses on digital cameras are very similar to conventional camera lenses — some digital cameras can even use conventional lenses. Most use automatic focusing techniques.
The focal length, however, is one important difference between the lens of a digital camera and the lens of a 35mm camera. The focal length is the distance between the lens and the surface of the sensor. Sensors from different manufacturers vary widely in size, but in general they’re smaller than a piece of 35mm film. In order to project the image onto a smaller sensor, the focal length is shortened by the same proportion.
Focal length also determines the magnification, or zoom, when you look through the camera. In 35mm cameras, a 50mm lens gives a natural view of the subject. Increasing the focal length increases the magnification, and objects appear to get closer. The reverse happens when decreasing the focal length. A zoom lens is any lens that has an adjustable focal length, and digital cameras can have optical or digital zoom — some have both. Some cameras also have macro focusing capability, meaning that the camera can take pictures from very close to the subject.
Digital cameras have one of four types of lenses:
1) Fixed-focus, fixed-zoom lenses – These are the kinds of lenses on disposable and inexpensive film cameras — inexpensive and great for snapshots, but fairly limited.
2) Optical-zoom lenses with automatic focus – Similar to the lens on a video camcorder, these have “wide” and “telephoto” options and automatic focus. The camera may or may not support manual focus. These actually change the focal length of the lens rather than just magnifying the information that hits the sensor.
3) Digital-zoom lenses – With digital zoom, the camera takes pixels from the center of the image sensor and interpolates (alters) them to make a full-sized image. Depending on the resolution of the image and the sensor, this approach may create a grainy or fuzzy image. You can manually do the same thing with image processing software — simply snap a picture, cut out the center and magnify it.
4) Replaceable lens systems – These are similar to the replaceable lenses on a 35mm camera. Some digital cameras can use 35mm camera lenses.
Storage of Images
Most digital cameras have an LCD screen so you can view your picture right away. This is one of the great advantages of a digital camera — you get immediate feedback on what you capture. Of course, viewing the image on your camera would lose its charm if that’s all you could do. You want to be able to load the picture into your computer or send it directly to a printer. There are several ways to do this.
Although most of today’s cameras are capable of connecting through serial, parallel, SCSI, USB, or FireWire connections, they usually also use some sort of removable storage device. Digital cameras use a number of storage systems. These are like reusable, digital film, and they use a caddy or card reader to transfer the data to a computer. Many involve fixed or removable flash memory. Digital camera manufacturers often develop their own proprietary flash memory devices, including SmartMedia cards, CompactFlash cards and Memory Sticks. Other removable storage device include floppy disks, hard disks (external, or microdrives), and writeable CD’s and DVD’s.
Regardless of what type of storage they use, all digital cameras need lots of room for pictures. They usually store images in one of two formats — TIFF, which is uncompressed, and JPEG, which is compressed. Most cameras use the JPEG file format for storing pictures, and they sometimes offer quality settings (such as medium or high).
To make the most of their storage space, almost all digital cameras use some sort of additional data compression to make the files smaller. One compression routine takes advantage of patterns that repeat. The image can be reconstructed exactly as it was recorded, reducing the file size no more than 50%, often much less. Another compression routine called irrelevancy eliminates some of the more meaningless data, taking advantage of the fact that digital cameras record more information than the human eye can easily detect.
By: Brian Lee
About the Author:
The amount of detail that a camera can capture is called the resolution, and it is measured in pixels. The more pixels a camera has, the more detail it can capture and the larger pictures can be without becoming blurry or “grainy.” High-end consumer cameras can capture over 12 million pixels. Some professional cameras support over 16 million pixels (megapixels), or 20 million pixels for large-format cameras. For comparison, it has been estimated that the quality of 35mm film is about 20 million pixels.
Exposure and Focus
Just as with film, a digital camera has to control the amount of light that reaches the sensor. The two components it uses to do this, the aperture and shutter speed, are also present on conventional cameras.
Aperture: The size of the opening in the camera. The aperture is automatic in most digital cameras, but some allow manual adjustment to give professionals and hobbyists more control over the final image.
Shutter speed: The amount of time that light can pass through the aperture. Unlike film, the light sensor in a digital camera can be reset electronically, so digital cameras have a digital shutter rather than a mechanical shutter.
These two aspects work together to capture the amount of light needed to make a good image. In photographic terms, they set the exposure of the sensor.
In addition to controlling the amount of light, the camera has to adjust the lenses to control how the light is focused on the sensor. In general, the lenses on digital cameras are very similar to conventional camera lenses — some digital cameras can even use conventional lenses. Most use automatic focusing techniques.
The focal length, however, is one important difference between the lens of a digital camera and the lens of a 35mm camera. The focal length is the distance between the lens and the surface of the sensor. Sensors from different manufacturers vary widely in size, but in general they’re smaller than a piece of 35mm film. In order to project the image onto a smaller sensor, the focal length is shortened by the same proportion.
Focal length also determines the magnification, or zoom, when you look through the camera. In 35mm cameras, a 50mm lens gives a natural view of the subject. Increasing the focal length increases the magnification, and objects appear to get closer. The reverse happens when decreasing the focal length. A zoom lens is any lens that has an adjustable focal length, and digital cameras can have optical or digital zoom — some have both. Some cameras also have macro focusing capability, meaning that the camera can take pictures from very close to the subject.
Digital cameras have one of four types of lenses:
1) Fixed-focus, fixed-zoom lenses – These are the kinds of lenses on disposable and inexpensive film cameras — inexpensive and great for snapshots, but fairly limited.
2) Optical-zoom lenses with automatic focus – Similar to the lens on a video camcorder, these have “wide” and “telephoto” options and automatic focus. The camera may or may not support manual focus. These actually change the focal length of the lens rather than just magnifying the information that hits the sensor.
3) Digital-zoom lenses – With digital zoom, the camera takes pixels from the center of the image sensor and interpolates (alters) them to make a full-sized image. Depending on the resolution of the image and the sensor, this approach may create a grainy or fuzzy image. You can manually do the same thing with image processing software — simply snap a picture, cut out the center and magnify it.
4) Replaceable lens systems – These are similar to the replaceable lenses on a 35mm camera. Some digital cameras can use 35mm camera lenses.
Storage of Images
Most digital cameras have an LCD screen so you can view your picture right away. This is one of the great advantages of a digital camera — you get immediate feedback on what you capture. Of course, viewing the image on your camera would lose its charm if that’s all you could do. You want to be able to load the picture into your computer or send it directly to a printer. There are several ways to do this.
Although most of today’s cameras are capable of connecting through serial, parallel, SCSI, USB, or FireWire connections, they usually also use some sort of removable storage device. Digital cameras use a number of storage systems. These are like reusable, digital film, and they use a caddy or card reader to transfer the data to a computer. Many involve fixed or removable flash memory. Digital camera manufacturers often develop their own proprietary flash memory devices, including SmartMedia cards, CompactFlash cards and Memory Sticks. Other removable storage device include floppy disks, hard disks (external, or microdrives), and writeable CD’s and DVD’s.
Regardless of what type of storage they use, all digital cameras need lots of room for pictures. They usually store images in one of two formats — TIFF, which is uncompressed, and JPEG, which is compressed. Most cameras use the JPEG file format for storing pictures, and they sometimes offer quality settings (such as medium or high).
To make the most of their storage space, almost all digital cameras use some sort of additional data compression to make the files smaller. One compression routine takes advantage of patterns that repeat. The image can be reconstructed exactly as it was recorded, reducing the file size no more than 50%, often much less. Another compression routine called irrelevancy eliminates some of the more meaningless data, taking advantage of the fact that digital cameras record more information than the human eye can easily detect.
By: Brian Lee
About the Author:
Brian Lee is co-owner of http://www.WorldCameraVideo.com 100% Customer Satisfaction Guarantee on entire line of digital cameras, camcorders, webcams, security cameras, photo printers, & accessories.
Posted in Digital Cameras | Tags: Amount Of Time, Consumer Cameras, Digital Camera Basics | No Comments »Digital Camera Battery Tips
Battery Conservation Tips
Are you always running out of battery power just before you take that perfect picture with your digital camera? Here are some
tips to conserve your batteries when you are out “snapping away”.
1) Turn off your digital camera when not in use. If you are in a situation where you must snap pictures quickly, this may not
apply as turning digital cameras on and off take a few seconds, and may cause you to miss a picture-taking opportunity.
However, if you are taking a leisurely stroll and can afford a couple of seconds before snapping a still subject, by all
means, conserve your digital camera’s energy!
2) Many digital cameras have a regular viewfinder and an LCD viewfinder. While the digital LCD viewfinder has its benefits,
it can drain battery power. Turn it off when applicable and use your regular viewfinder for taking pictures.
3) Don’t stop after taking every photo and look at the picture in your digital camera’s playback mode. Granted, you sometimes
need to look at photos immediately after shooting them in order to make sure your exposure is correct, the lighting is ok,
etc., but doing this does use up your digital camera’s battery power.
4) If you are using MicroDrive media, be forewarned that these miniature hard drives may take up quite more power than
Compact Flash cards.
Taking care of you new battery pack
Normally, a new battery pack comes in a very low charge condition and must be fully charged before use. Refer to the user
manual of your portable electronic equipment for charging instructions. A new battery pack needs to be fully charged and
fully discharged or “cycled” as much as five times to condition them into performing at full capacity. Your equipment may
report a fully charge condition in as short as 10 to 15 minutes when the new battery pack is being charged for the first
time. This is a normal phenomenon especially for Nickel Cadmium (Ni-Cd) and Nickel Metal Hydride (Ni-MH) chemistries. When
this happens, remove the battery pack and let it cool
down for about fifteen minutes then repeat the charging procedure. “Conditioning” (fully discharging and then fully charging)
is necessary so as to maintain the optimum performance of a battery pack, and is recommended at least once a month
particularly for Ni-Cd and Ni-MH batteries. Failure to do so could result in reduced charge capacity and can significantly
shorten the battery packs useful life. Lithium Ion batteries do not require conditioning. It is normal for a battery pack to
get warm when charging and during use. However, if the battery pack gets excessive hot, here may be a problem with the
portable electronic equipments charging circuit and should therefore be checked by a qualified technician. Rechargeable
batteries undergo self-discharging when left unused for long periods of time. This is normal particularly in the case of Ni-
MH and Li-ion chemistries. For best results, always store a battery pack fully charged. It should be removed from the
equipment and kept in a cool, dry and clean place. The amount of runtime a battery pack produces depends on the power
requirements of components in your electronic equipment.
Don’t let under-charged batteries keep you from taking great photos.
If you infrequently use your digital camera, you may think that you after you use your digital camera, recharge your NiMH
batteries, wait a few weeks or months, then use your digital camera again, that your batteries will be charged and you’ll be
ready to snap photos, right?
Oops… Do that and you’ll be stuck with a non-functioning digital camera or one that just blinks a picture showing a dead
battery.
Rechargeable batteries don’t stay charged forever. They tend to lose a little bit of their power every day. If you charge
your batteries and frequently use your digital camera, you will probably never notice this loss of power. However, after a
couple of weeks, the power loss may be noticeable, and after a couple of months or longer of non-use, those once ready-to-go
batteries may have lost enough power to make them unusable.
Don’t get caught in this trap. Always charge your batteries before every trip, and make sure to use a battery charger with a sensor that prevents over-charge.
more info: http://www.camera-battery.org
By: Camera-battery.org
About the Author:
Are you always running out of battery power just before you take that perfect picture with your digital camera? Here are some
tips to conserve your batteries when you are out “snapping away”.
1) Turn off your digital camera when not in use. If you are in a situation where you must snap pictures quickly, this may not
apply as turning digital cameras on and off take a few seconds, and may cause you to miss a picture-taking opportunity.
However, if you are taking a leisurely stroll and can afford a couple of seconds before snapping a still subject, by all
means, conserve your digital camera’s energy!
2) Many digital cameras have a regular viewfinder and an LCD viewfinder. While the digital LCD viewfinder has its benefits,
it can drain battery power. Turn it off when applicable and use your regular viewfinder for taking pictures.
3) Don’t stop after taking every photo and look at the picture in your digital camera’s playback mode. Granted, you sometimes
need to look at photos immediately after shooting them in order to make sure your exposure is correct, the lighting is ok,
etc., but doing this does use up your digital camera’s battery power.
4) If you are using MicroDrive media, be forewarned that these miniature hard drives may take up quite more power than
Compact Flash cards.
Taking care of you new battery pack
Normally, a new battery pack comes in a very low charge condition and must be fully charged before use. Refer to the user
manual of your portable electronic equipment for charging instructions. A new battery pack needs to be fully charged and
fully discharged or “cycled” as much as five times to condition them into performing at full capacity. Your equipment may
report a fully charge condition in as short as 10 to 15 minutes when the new battery pack is being charged for the first
time. This is a normal phenomenon especially for Nickel Cadmium (Ni-Cd) and Nickel Metal Hydride (Ni-MH) chemistries. When
this happens, remove the battery pack and let it cool
down for about fifteen minutes then repeat the charging procedure. “Conditioning” (fully discharging and then fully charging)
is necessary so as to maintain the optimum performance of a battery pack, and is recommended at least once a month
particularly for Ni-Cd and Ni-MH batteries. Failure to do so could result in reduced charge capacity and can significantly
shorten the battery packs useful life. Lithium Ion batteries do not require conditioning. It is normal for a battery pack to
get warm when charging and during use. However, if the battery pack gets excessive hot, here may be a problem with the
portable electronic equipments charging circuit and should therefore be checked by a qualified technician. Rechargeable
batteries undergo self-discharging when left unused for long periods of time. This is normal particularly in the case of Ni-
MH and Li-ion chemistries. For best results, always store a battery pack fully charged. It should be removed from the
equipment and kept in a cool, dry and clean place. The amount of runtime a battery pack produces depends on the power
requirements of components in your electronic equipment.
Don’t let under-charged batteries keep you from taking great photos.
If you infrequently use your digital camera, you may think that you after you use your digital camera, recharge your NiMH
batteries, wait a few weeks or months, then use your digital camera again, that your batteries will be charged and you’ll be
ready to snap photos, right?
Oops… Do that and you’ll be stuck with a non-functioning digital camera or one that just blinks a picture showing a dead
battery.
Rechargeable batteries don’t stay charged forever. They tend to lose a little bit of their power every day. If you charge
your batteries and frequently use your digital camera, you will probably never notice this loss of power. However, after a
couple of weeks, the power loss may be noticeable, and after a couple of months or longer of non-use, those once ready-to-go
batteries may have lost enough power to make them unusable.
Don’t get caught in this trap. Always charge your batteries before every trip, and make sure to use a battery charger with a sensor that prevents over-charge.
more info: http://www.camera-battery.org
By: Camera-battery.org
About the Author:
Digital Camera Buying Tips For Novice Photographers
Life is a stream that lets memories flow away as we leaving them behind. Although, it`s difficult to find time to look back and reminisce your past memories in this fast-paced world, sometimes we feel really special to muse over the pleasant moments of those bygone days that take us into a sweet nostalgia. Hence, people make it a point to capture their special moments with the help of digital cameras no matter how big or small the occasions are.
Digital cameras have become so popular in the last couple of years that many cell phone manufactures have started offering mobile phones with a built-in camera. Although, cell phone cameras let people capture photograph as and when they like, their use, however, is limited to certain occasions. This is because mobile phone cameras are unable to offer the clarity and precision that standard digital cameras can offer. This brings the necessity of buying a digital camera among many people who are passionate about photography.
But, here is the deal – if you are one of those first-time buyers of a digital camera, you are likely to face some or other problems while buying which is going to hurt your decision. Remember the following points before you go and buy a digital camera for the first time.
Determine your needs:
Before you decide to buy a digital camera, determine your specific needs. Do you need a digital camera just for fun such as capturing pictures and sharing them with your family and relatives via email, or do you want to learn the nuances of professional photography? Knowing your specific requirements will help you in buying the right digital camera and saving money as well.
What`s your budget:
Digital cameras are available with price range starting from 100$ to 1000$. However, you should set a particular budget before buying the gadget. Actually, what you want to do with the digital camera decides the money that you are required to spend on it. For instance, if you want to buy a digital camera for professional photography, you may have to spend a few hundreds extra than if you want to buy a standard digital camera used for amateur and fun photography. If you are buying a digital camera for fun, it should cost you between 300$ and 400$ with all the standard features.
The mystery called megapixel:
Megapixel is critical to the clarity of a picture when you take pictures with the help of a digital camera. Hence, higher the megapixel of a digital camera, clearer the pictures that you will be able to get with it. What should be the megapixel of your digital camera? If you are going to use your digital camera to take and share pictures with your friends, family and relatives for fun, a 2-mega pixel should be ideal for you. If you are looking at taking pictures of professional quality and bigger size, buy a digital camera that should be have at least 4-5 megapixel.
Zero in on the optical zoom:
If you are not familiar with the lingo of digital camera, you are most likely to confuse between digital zoom and optical zoom. Many manufactures will try to sell their digital cameras on the basis of digital zoom. However, you should know that digital zoom gives you larger image compromising the quality. Go with the optical zoom as you can get enlarged pictures with good quality.
Compatibility factors:
When you buy a digital camera, make sure you figure out if it is compatible with your personal computer. This is because you are going to use it along with your computer. Usually, specifications and minimum requirements are mentioned in the digital camera manual. Ask the sales person to explain them to you if you are not able to understand them properly enough.
By: Roberto Sedycias
About the Author:
Digital cameras have become so popular in the last couple of years that many cell phone manufactures have started offering mobile phones with a built-in camera. Although, cell phone cameras let people capture photograph as and when they like, their use, however, is limited to certain occasions. This is because mobile phone cameras are unable to offer the clarity and precision that standard digital cameras can offer. This brings the necessity of buying a digital camera among many people who are passionate about photography.
But, here is the deal – if you are one of those first-time buyers of a digital camera, you are likely to face some or other problems while buying which is going to hurt your decision. Remember the following points before you go and buy a digital camera for the first time.
Determine your needs:
Before you decide to buy a digital camera, determine your specific needs. Do you need a digital camera just for fun such as capturing pictures and sharing them with your family and relatives via email, or do you want to learn the nuances of professional photography? Knowing your specific requirements will help you in buying the right digital camera and saving money as well.
What`s your budget:
Digital cameras are available with price range starting from 100$ to 1000$. However, you should set a particular budget before buying the gadget. Actually, what you want to do with the digital camera decides the money that you are required to spend on it. For instance, if you want to buy a digital camera for professional photography, you may have to spend a few hundreds extra than if you want to buy a standard digital camera used for amateur and fun photography. If you are buying a digital camera for fun, it should cost you between 300$ and 400$ with all the standard features.
The mystery called megapixel:
Megapixel is critical to the clarity of a picture when you take pictures with the help of a digital camera. Hence, higher the megapixel of a digital camera, clearer the pictures that you will be able to get with it. What should be the megapixel of your digital camera? If you are going to use your digital camera to take and share pictures with your friends, family and relatives for fun, a 2-mega pixel should be ideal for you. If you are looking at taking pictures of professional quality and bigger size, buy a digital camera that should be have at least 4-5 megapixel.
Zero in on the optical zoom:
If you are not familiar with the lingo of digital camera, you are most likely to confuse between digital zoom and optical zoom. Many manufactures will try to sell their digital cameras on the basis of digital zoom. However, you should know that digital zoom gives you larger image compromising the quality. Go with the optical zoom as you can get enlarged pictures with good quality.
Compatibility factors:
When you buy a digital camera, make sure you figure out if it is compatible with your personal computer. This is because you are going to use it along with your computer. Usually, specifications and minimum requirements are mentioned in the digital camera manual. Ask the sales person to explain them to you if you are not able to understand them properly enough.
By: Roberto Sedycias
About the Author:
This article can be accessed in portuguese from the Article section of page www.polomercantil.com.br/camera-digital.php
Roberto Sedycias works as IT consultant for www.PoloMercantil.com.br