Originally posted by: tfinch2
Originally posted by: ultimatebob
Does your Dad have ANY existing lenses from his old SLR camera? If he does, he might be able to reuse them if you get him a digital SLR of the same make.
For example, if he happened to have a old Pentax SLR camera, he'd be able to use the old lenses from that. It doesn't matter if they're 20 or even 30 years old... they'll work.
With the right adapters, just about any old lens will work on any digital SLR make.
Not really. Canon FD lens won't work with EOS cameras as the distance between the mount and the mirror is shorter on the FD camera than the EOS camera, so FD lenses are unable to be focused at infinity for EOS cameras.
Nikon AIS lens cannot be used in aperture priority mode in just about all of the Nikon DSLRs, except the professional bodies.
Pentax, however, has full compatibility with every lens they made, except the old 1960s M42 mount, which is fully supported with a simple $10 adapter.
Anyways, I personally think the Pentax *ist DL is the best value at only $479 for the body with the 18-55mm kit lens. I'd say it's on the same level as the D50, bearing the same sensor. The Pentax has some strong points, notably being the viewfinder, excellent old manual focus lenses available for next to nothing, DoF preview. Nikon D50 has it's own advantages, fast AF, much improved in low light, a wide range of professional zooms in which Pentax lacks, but is exorbantly expensive.
So you will need to decide which your dad would like more. If he was accustomed to his old mechanical SLR with metal manual focus lenses, then I'd think he'd appreciate the Pentax more. If he wants something easy and convenient to use, then the D50's autofocus is probably better suited.