Canon PowerShot A630 vs Nikon D200 digital cameras reviews
Both PowerShot A630 and D200 have 2.5" lcd screen size.
With its declared 10.2 maximum screen resolution Nikon D200 digital camera is able to produce finer pictures than Canon PowerShot A630 which has 8Mpix picture quality.
Optical zoom at Canon PowerShot A630 is 4x and for other model you should buy special lenses (what is characteristic of real professional models).