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Digital Camera Buying Guide

Planning to buy a digital camera? Not sure how to get started?

Market is flooded with digital cameras from various brands. They too vary in sizes, in features and in specifications. It is obvious to get confused which one is better in this festive season for your family. Here follows the article that tries to impart some of the useful digital camera buying tips:

What do you need the camera for?

If you are looking for a simple one that can be used at home, you won’t get interesting features that you may need for taking really good photographic pictures that normally professional photographers look for. Otherwise it would be a waste of money if you have the digital camera with latest features only to be used for personal photography. Digital cameras available in the market are of three basic types:

Point and Shoot, Lifestyle and Professional. Based on the purpose one can choose from the following main three types:

•Point and Shoot: - reasonably compact, with common features and size like 35mm digital cameras.

•Lifestyle: - with moderate features, it’s sleek and compact, so you can carry it around with utter ease.

•Professional: - with interchangeable lenses, flashes and other accessories, this type of digital cameras is robust and feature laden, just the best choice for a professional or serious photographer.

Features you must look for Resolution

Digital images are made up of dots (.) called as pixels. The higher the number of pixels in your captured image, the better will be the quality of the image. This will therefore help you enlarging your image to higher pixel dimensions without creating a pixilated (broken) image, which we normally called as blurred image.

Compression

Compression shrinks a photo's file size so that more images can be stored in the memory card. If you need the absolute best quality images, you have to consider buying a digital camera that takes uncompressed photos but will accommodate less number of images.

Memory

A digital camera's memory size will determine the number of images that can be stored. Memory of 128MB will be good enough if you want to use the camera for personal purposes. If you are on a vacation or when you cannot download images for longer days, a memory of 512MB to 1GB the best option.

LCD Screen

Most digital cameras come with at least an optical viewfinder but many digital cameras also come with an LCD screen built into the back. The display panel varies from 1.5" - 2.5" from camera to camera.

Lens

It is the length of a digital camera's lens that determines how much of a sight will fit in a picture. A "Normal" lens is about 50mm, most closely approximate to what your eye sees.

Optical Zoom

This enables a photographer to zoom in on an object without lowering quality of pictures. Depending on the magnification number, you can zoom in more up to its specified limitation.

Digital Zoom

This feature enables the photographer to zoom in on the centre of the picture by removing the edges of the image. Doesn’t this feature make a digital camera cool.

Focus an Exposure

In most digital cameras, the correct exposure for the lighting conditions is automatically determined. A camera rated ISO 100, has approximately the same light sensitivity as that of a traditional film camera loaded with ISO 100 film. A higher ISO rating means that the camera is more sensitive to light and is potential enough to take pictures in darker settings.

Audio and Movie Capture

This feature allows you to record sounds and moving images at the same time, in exactly the same way that a camcorder works. Some digital cameras offer the facility to record a few seconds of audio with each shot, thus letting you add a personal sound bite to your photos.

Movie Mode

This is a feature that lets you take short film clips with your digital camera. The total record length is typically limited to 10 to 90 seconds.

Flash

Most digital cameras come with an in-built flash. Some cameras however include additional features, such as red-eye reduction or night portrait mode.

Image Erase

Most cameras also let you select pictures to erase. This handy feature gives you the chance to edit out the photos you don't want in order to save more space in the memory for more snaps.

Self-Timer

A self-timer allows a digital camera for a delayed exposure, usually giving you about 10 seconds before the picture is taken. So no problem if you don’t find anybody to take your photos. You can set your digital camera on self-timer and go back to your position to take a perfect photo of yours.

Computer Connections

Most high-end digital cameras have software and connections for all Mac, PC computers and laptops. However it is necessary to make sure the digital camera you want is compatible with your platform before you go for a buy.

Image Stabilization

This feature enables the photographer to capture still images of something moving very fast. This feature is a must for all professional photographers, especially sports photographers.

Printing

Now-a-days, you can buy special printers, depending on the compatibility of your camera, to print off your pictures without connecting it to a PC. This applies both for digital and SLR Professional cameras.

The Significance of Digital Camera Size and Portability
Size is another very important factor to be taken care of. If you are to use the camera for non-professional purposes the size has to be small as you cannot afford to carry huge sized cameras when you are enjoying a vacation. And there is kind of security problem as there may be a chance of theft.

Budget – The "Cannot Be Ignored Option"

Based on the budget the features will vary and the overall offering of a digital camera. Today's digital cameras run anywhere from Rs 800 to Rs 30,000, depending on resolution and feature specifications. While the initial expense of a digital camera is still high you may find that the added convenience and savings in film and processing costs are worth it.

About the Author

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The Biggest Power Consumers in Digital Cameras

Like other portable electronic devices digital cameras rely on batteries to power up their electronics and mechanical elements. Although battery technologies have improved a lot in the last few years they are still very limited in their energy capacity.

Understanding what elements of your digital camera consume the most power can help you to understand why you run out of battery so fast and to conserve battery power in the future. In this article we will list these power hungry components. Other articles explain how you can optimize usage to preserve power.

Your digital camera is built from many components. Some of them are electronic like the chipsets that run the camera and carry out all the wonderful automatic features. Some of them are mechanical like the motors that move the lenses to achieve focus or change the zoom factor. And some of them are optical like the lenses and the mirror in SLR cameras.

Every digital camera components consumes different amounts of energy. Some components consume very little power while others consume a lot. Digital cameras include smart electronics that optimize power consumption but for the most part power consumption depends on how the photographer uses the camera and its features.

Here is a list of three components that consume the most energy in a typical digital camera:

LCD screen: One of the great features of digital cameras is the ability to view photos immediately after they are taken using a small color and bright LCD screen built into the camera. This allows photographer to review the composition and decide if the photo is good enough or if they need to take more photos. Before the digital era photographers had to wait until the film was developed in order to review their photos. The digital era shortened this wait time to virtually zero. LCD screens are also used as convenient view finders when taking a photo you can look at the LCD and see exactly how the photo will look like. Pressing the shutter button actually shoots the photo. The problem with color and bright LCD screens is that they consume a lot of energy. This is the reasons why all digital cameras turn off the LCD screen automatically if not used for a certain amount of time.

Motors: Digital cameras include moving components. These are mostly optical elements that move in order to focus on objects or change zoom factors. Digital cameras include motors that move those elements as needed to achieve the photographer desired results. For example when auto focusing on objects in the photo frame the digital camera built in computer sends commands to the motors to move the lenses back and forth until focus is achieved. Motors are mechanical components and consume a lot of power when used. Furthermore the bigger and heavier the lens and optical elements that the motor have to move (for example big zoom lenses) the more energy is needed for the motors to complete their task.

Flash: Flash is used when shooting photos in dark conditions or in conditions where shadows can appear on the objects. Flash is an electro-optical component that works by charging energy into a special electronic component and then discharging this energy in a short time as light energy. There are many types of flash units the bigger and longer distance that a flash supports the more energy it consumes each time it is used.

About the Author

Mr. Haparnas writes about technology and digital photography. This article can be published only if the resource box including the backlink is included. Ziv Haparnas is a technology expoert. Find more on photo printing and photography is on printrates.com - a place about digital cameras

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