The first thing you hear about cameras is their resolution. The resolution of cameras is expressed in pixels and you should pick the camera with a better resolution. High resolution cameras will give you better output and you can easily distinguish between photos taken from a digital camera and analog camera.
Zoom are of two types, optical zoom and digital zoom. Digital zoom does nothing more than enlarging pixels electronically. On the other hand, optical zoom use a physical lens to magnify the image. Digital zoom is over hyped so go for a camera with optical zoom as it will give you a better output.
Convenience vs. Power
The most important thing you need to keep in mind is the price of the camera. If you are looking for a cheap digital camera, you will see that cameras that are light weight with less zoom power and fewer features are cheaper than the cameras that are heavy and have more zoom power and extended features. So if you are looking for more features and a more professional camera and money isn’t a problem for you; go for larger digital cameras that have more functions and features.
You need to keep in mind the size of LCD screen you want. A good digital camera usually has a big, colour LCD screen. Having a big LCD screen allows you to quick-view your photos right after taking them and it makes things a lot easier.
Most of the digital cameras use memory card option for the storage purposes. A good digital camera must have enough memory so that you can save thousands of pictures on it. Go for a camera with more memory option.
While choosing a digital camera, check the timing of its battery before making a final call.