Zoom
It want a camara with a great zoom and focus, what or where or how should I look for this feature in a camara.
Two things. You have optical zoom and digital zoom. Optical zoom means the lens is changing focal length and therefore makes the image large or smaller using optical physics. Digital zoom is the camera blowing up the image, this will be ok at lower magnifications, but if the digital zoom is too high, the image will become blurry and distorted. Look for cameras with high optical zoom ~30-50x and digital zoom of ~2-4x. Hope this helps.