19 Sep 08 How Do I Choose a Digital Camera?
Author: J Adams
A digital camera might look like a film camera but they are actually quite different. Both freeze light to make a photograph. Film cameras do this chemically using film. Digital cameras use a light sensitive CCD or CMOS silicon chip to convert light and digital information into pixels.
Pixels are the tiniest areas of light that your digital camera can recognize and change into information. The greater amount of pixels the more detail and higher the resolution the photograph. A low resolution color printout of tree will show that it is green but in a high resolution photograph the leaves and texture of the bark will be more sharply defined.
With digital photographs your have the ability to use software like Adobe Photoshop Deluxe and Microsoft Picture to edit photos and make corrections.
Choosing Your Camera
Important considerations when choosing a digital camera are: What do you want the camera to do? What features do you require? How much do you wish to spend on your camera?
There are professional high end cameras that cost thousands of dollars, cheap throwaway cameras and a huge selection of mid-level cameras available to choose from.
Will you be photographing images for the internet and for email? Will your photos be printed? For regular print size snapshots and web photos a one to two megapixel camera will do. In fact for the web a lower megapixel would be better as higher resolution photos are slow to download.
Do you want a point-and-click camera? Are you someone who just wants to get the picture taken with the least amount of bother. Do you want a camera that does everything automatically and you simply have to press a button? Or, are you someone who would rather figure out the best settings for your camera and make the adjustments manually? It’s always best to find a camera that suits your purpose, need and ability.
High or Low Resolution
High end, high resolution cameras are good for photographs that are to be printed. The greater the number of pixels the higher the resolution. High resolution does not make sense on the web as the extra resolution does not make images appear any sharper. Also, high resolution photos are slow to download on the web.
To print your photographs you will need a good quality color printer. If photos are to be printed, high resolution does make a difference depending how large you want the picture to be. High resolution will give a large print better definition. High resolution cameras cost more. Expect to pay more for high resolution. You also need to check that your printer can handle high resolution prints.
Lenses
Low-end digital cameras have fixed focus lenses made of plastic. With these lenses everything is focused and you don’t need to make a decision what to focus on.
Variable focused lenses are made of glass or high quality plastic. These lenses focus on whatever object you are trying to capture in a photograph.
Most mid-range digital cameras come with auto focus and manual focus built in. Auto focus is for point-and-click photos of whatever is in the middle of the frame. Or, by turning the ring over the lens, you can manually focus the camera. These cameras allow users to switch between auto and manual focus.
Zoom Lenses
Digital cameras have optical zoom and digital zoom lenses. Optical zoom costs more, give a better quality picture, and works the same way as on non-digital cameras with lens adjustments. A digital zoom comes about when the camera makes calculations to manipulates the pixels. Digital zoom gives a less sharp image. Some cameras include both optical and digital zoom.
View Finder
The view finder is what you look through to see what you are photographing. The view finder on both digital and regular film cameras will approximate the picture your lens is viewing. Digital cameras will also come with an LCD display that you can use to check your photographs and decide weather or not to keep them.
Lighting
When it comes to lighting you might not want the camera to make the decision automatically for you. On an auto setting you camera might not make the best lighting choice given the location and environment. At times like this you can appreciate being able to switch between manual and automatic settings.
Digital cameras allow you to test exposure and view a picture on LCD prior to pressing the button fully and committing to a photograph.
Flash
There will be a built in flash that comes with your digital camera. In addition, the better cameras have a location for a flash attachment. This is a good option for producing better quality photographs.
Connecting to Your Computer
You will need a PC USB cable, or for Mac’s - Firewire or Mac USB cable, to connect to your computer. You will also need a cable adapter for your camera’s CF (Compact Flash) or SM (Smart Media) card .
The CF or SM cards are removable high capacity storage cards for your photos. Your camera will use one type of card or the other. Not both. Check to see which type of storage card your camera uses.
USB connections are fast and easy to set up. Older cameras connect through a serial port. USB is faster and does not require that the computer be rebooted before it recognizes the camera.
Batteries and AC Adapters
Digital cameras often come with rechargeable batteries. It is best to have two sets of batteries. One set to use while the other is recharging. AC adapters make it easy to plug into an electrical outlet when you are near by one.
Main Drawback of Digital Camera
The main drawback of digital cameras is shutter lag delays when the camera delays responding after you squeeze the button. It is possible you may miss the moment when photographing moving objects due to shutter lag. Some of the newer cameras are beginning to address the problem.
Select a camera that does what you want it to do, has features you will use and is priced in the range you want to pay. This will be the right camera for you. If your experience is limited and you do not want to take a lot of time learning how to use the camera, go with a point-and-shoot camera. Something without too many features. If you are a camera enthusiast who wants to do more with your camera or is willing to take the time to learn how to use the feature then, by all means go all out.
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18 Sep 08 Buying a Digital Camera? Read This Buying Guide!
Author: Bob Shanty
Many digital cameras with upgraded technology are being introduced every day. This makes it more difficult to select a camera, as you are left with a wide range of models to choose from. However, most buyers have specific features and needs in mind. Rather than going for the latest model, buy digital cameras that best suit your requirements.
What should I look for when buying a digital camera?
The cheap camera lenses, resolution, display size, performance and battery life should all play a significant role in your buying decision. Here are some features to keep in mind while picking the right camera for yourself.
Resolution is typically defined as the number of pixels that make up a picture. A digital cameras resolution is closely related to image quality. You need a high resolution camera to shoot and print highly detailed photographs. If you want to enlarge and crop any of your photos without loss of clarity, go for cameras that offer a higher resolution. If you do not intend on printing your photographs and would rather email them to friends, a lower resolution camera would be a better choice. They are more affordable and still produce fairly good images.
Memory and Connectivity:
Generally, digital cameras have a removable storage option, such as a memory card slot. Digital cameras support a wide range of formats like flash memory, memory sticks, SecureDigital cards, SmartMedia cards and xD Picture cards. Many TVs, laptops, digital photo frames and some gaming consoles have memory card readers, so you can easily view photos that are stored on memory cards. If you want to save money, store photos on the cameras internal memory rather than on a memory card and transfer them to a PC or Mac using a USB cable. Digital memory is a huge time and money saver!
Rechargeable batteries are highly recommended because they can be charged and reused again. Recent cameras are compatible with NiCad, NiMH and lithium-ion batteries. Though NiCad and NiMH are inexpensive, lithium-ion is worth the extra money. They are long-lasting batteries with low self-discharge rates. You should opt for cameras that are compatible with lithium-ion batteries. A few cameras come with an AC power adapter that can be used to charge the digital camera battery as well.
Zoom:
Digital cameras come with two types of zoom lenses, optical and digital. Both of these zoom lenses allow you to take close-ups of a distant subject, although they accomplish this task through different means. The optical zoom magnifies the image before the shot is taken, whereas the digital zoom artificially magnifies the image by enlarging the pixel area but this leads to a loss of resolution. You should pay more attention to the optical zoom rather than the digital zoom when comparing models.
Modes:
Most cameras available today have preset modes for shooting images under different conditions. Factors such as exposure, aperture, focussing, light metering, white balance and sensitivity can all be adjusted. Many digital cameras also include video capture modes, enabling you to take short videos at different frame rate speeds.
ViewFinders and LCD Displays:
The optical viewfinder is the window you look through when taking a picutre. Although there are digital cameras with viewfinders, several of the latest models have only an LCD display. The LCD screen lets you view an image as you take it and also plays back pictures and videos saved on your camera. Anti-glare screens are best for buyers who plan on shooting a lot of photos outdoors. If you need a durable camera for rough use, opt for a scratch resistant screen.
Technology:
Digital cameras also come with innovative technologies that make photography fun and easy. Do u want to avoid overexposed or darkened faces, recognise multiple faces or optimize the color and tonal qualities of your photos? Not a problem. Todays cameras are well equipped with automatic red-eye and camera shake detection and correction as well as multiple face recognition. Not no meantion tons of
What are the different types of cameras and camera accessories online or available through conventional stores?
Point-and-Shoot Models:
Point-and-shoot cameras are a dime a dozen. These entry level models provide low resolution with little magnification. If you do not want to spend time on focusing and figuring out the settings and controls, a point-and-shoot camera is just the ticket. You will find plenty of these models that are low in cost and easy to use.
Intermediate Models:
These models are especially designed for beginners. Equipped with a range of automatic settings, these consumer-level digital cameras produce flawless pictures. They usually have a resolution of 3.2 to 5 megapixels and a 3:1 to 4:1 zoom lens.
Advanced Consumer Models:
If you have taken a class or photography is one of your hobbies, then you will probably want some additional features. Choose from the many advanced consumer models with higher resolutions, quality lenses and morer zoom. These models let you add features based on your needs and give you the freedom to personalize the settings.
Prosumer Models:
When you buy digital cameras, if consumer models are too basic for you and professional models are too complex, you will love a prosumer model. These sophisticated cameras have the best of both worlds. They have a vast number of options to work with, like switching between automatic and manual focus, selecting the shutter speed and adjusting the aperture settings. You will also have the opportunity to express your creative side by manipulating images. You can adjust the brightness and contrast levels for truly unique snaps. You can expect a minimum of 5 to 6 megapixels in this category. These digital cameras can take 2 to 3 pictures per second, but tend to be more fragile than other models.
Professional Models:
You will need a top of the line model that sports the latest features to meet your high demands, if you are a professional photographer. Professional models are capable of producing high resolution images with magnificent colors and clarity. They have interchangeable lenses and a resolution of up to 14 megapixels. These models are the fastest on the market, allowing you to take 5 pictures per second. Professional digital cameras have a whopping storage option of at least a 1 GB mini hard disk drive, on an average.
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18 Sep 08 What Digital Camera to Buy? Tips to Help You Decide
Author: Ralph Serpe
Digital cameras are available in a variety of different sizes, colors, brands, zooms, resolutions, etc. The features are endless. There are so many features available in today’s cameras that many first time buyers become overwhelmed and have no clue what digital camera to buy.
So what should a beginner digital photographer look for when buying their first digital camera?
In order to answer this question let us pose a few more:
WHAT KIND OF PICTURES WILL YOU BE TAKING?
This is an important first step in deciding what digital camera to buy. If you are planning on becoming a professional photographer and will be taking high quality shots to possibly sell, any old digital camera will not do. You will have to pay careful attention to the types of features you will need like resolution, megapixels, zooming, etc.
If you are a casual photographer and simply want a descent camera to share with friends and family then you may not need a bunch of fancy gadgets and features.
WHAT IS YOUR BUDGET?
No matter what your needs and wants are as a photographer your finances will ultimately dictate what type of camera you can afford. Set a budget and stick to it.
WHAT RESOURCES WILL YOU NEED?
Depending on the digital camera that you purchase, you may need additional resources to use it to its full potential. If you plan on doing any photo editing or printing, you will need a computer and a printer that is compatible with your camera and software. The editing software is usually included with your digital camera but other devices like memory cards are usually not.
WHAT RESOLUTION WILL YOU REQUIRE ON YOUR CAMERA?
Before you buy your first digital camera make sure you learn more about its capacity to produce high quality images. This is determined by the number of megapixels the camera has. The more pixels, the higher the resolution. This is important because you want your images to retain their quality when you enlarge them.
HOW MUCH MEMORY WILL YOU NEED?
You will need a memory card for your digital camera in order to store your pictures. When you buy a digital camera, make sure it has a card slot for external and additional memory. This allows you to change full memory cards conveniently while shooting your pictures.
WHAT ABOUT THE LOOK AND FEEL OF YOUR CAMERA?
Buy a camera that you are comfortable holding while taking pictures. So before you actually purchase your digital camera, make certain that you actually pick up and test each camera. Consider where the buttons are located and how they are spaced out and see also if you feel comfortable using the view finder. See how heavy it feels around your neck as well.
WHAT ABOUT THE BATTERY LIFE OF YOUR CAMERA?
Digital cameras use up battery life rather quickly and batteries are not exactly cheap. Make sure you purchase a camera that uses rechargeable batteries, this way you can get multiple usage out of your batteries. Take also into consideration an AC adapter when you buy a digital camera. You can attach this to the camera when you are viewing your pictures or uploading them.
WHAT ABOUT THE LCD SCREEN?
The LCD is a small screen usually located on the back of the camera. You can use the LCD screen instead of looking through the traditional tiny viewer. The LCD screen also enables you to preview pictures that you have already taken. There is a drawback to using an LCD screen however, as it does use up a lot of battery power.
DO YOU NEED ANY SPECIAL FEATURES?
You should consider whether or not you will need any special features on your camera. This all depends on what type of pictures you plan on taking. If you want your camera to have good zooming capabilities, you can opt for those with optical zoom lenses. Other features such as remote control, tripods, etc. can also be considered when you buy a digital camera. Be careful though. The more features you have on a digital camera, the more difficult it will be to figure out and use.
With this information I do hope you will be able to figure out what you need before you buy your digital camera. I feel the most important thing is to be patient. Take your time shopping and researching. Learn everything there is to know about the features of digital cameras and what you really need.
Once you narrow down your choices to a few different models, look for the best possible price. There are many different camera sellers online and off. But don’t buy a digital camera from just anyone. Make sure the seller has a good customer service history as well as good prices. Best of luck in figuring out what digital camera to buy!
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17 Sep 08 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 packNormally, 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
Article Source: http://www.articlesbase.com
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