-Weight & size
As the camera feels in your hands is important. Decide what kind of dimension that fit in your activities.
-Compatibe to PictBridge?
PictBridge provide technology that lets you print directly from your camera (which most new printers have) without using a computer or software for editing images.
-How is the output photo quality:
Factors include optical quality of lens and image capture card, compression algorithms, and resolution of the CCD.
The higher the resolution the better since greater details can be captured.
-Compression of the image
The transfer of data (video, audio, digital) to reduce the amount of data required to accurately represent the content. Nowaday most digital cameras store the image in the industry standard JPEG compression (Joint Photographic Experts Group.) They also have different settings to choose either resolution quality and image capacity.
-Panel Color LCD (liquid crystal display) screen
This feature allows a user to review taken pictures and adjust the range of camera settings in easy way.
The LCD panel is invaluable to review and correct your photos without using a computer.
-Capabilities to zoom
Motorized zoom lenses offer a focal length range equivalent to anything from a moderate wide angle to moderate telephoto lens on a 35mm camera roll. Besides the optical zoom, some digital cameras also offer a digital zoom feature, but this reduces the resolution and picture quality. While reducing the longevity of batteries, many people feel that the optical zoom is a feature that should be taken.
-Macro Function
This feature is needed for special purpose (details), It allows photos to be taken to as short a distance of 3cm.
An optional macro lens is available for many cameras type.
-Widescreen Mode
This options include a box that simply cuts the top and bottom edges of a standard image and a pseudo-panoramic which captures a widescreen ‘landscape’ in series of images.
-Timer
This auto-clock feature has a delay of 10 seconds between the time the shutter is activated and the photo is taken.
-Automation
Good cameras provide different modes such as low light and flash to the bottom, shakes stabilizer, fill-in flash, force-off (for indoor), photo mode, and red-eye reduction.
-Resolutions:
The bigger Megapixels, the higher the resolution, resulting in a better quality photograph.
-The camera you purchase ultimately depends on your needs (professional, just hobbies), provided supplies (tripod, add-ons battery, underwater case), how frequently you use and which features they really needed.