Originally posted by Wired I'm going to guess programing language?
On that topic though.... how are these said adapters for IQ? This could change my idea of putting money down on a D800 tomorrow
The PK->EOS adapters have no optics, so I don't think they affect the IQ at all. Not sure about PK->Nikon.
I am not using one right now. I bought one a month ago and returned it as I only had auto-aperture lenses, and found out that the adapter doesn't open the perture at all - I could only shoot at the lowest aperture with the adapter
Only lenses with aperture rings will work with those adapters. That means no DA lenses. It excludes most APS-C Pentax lenses basically.
If you are going for a D800 presumably you would use full-frame lenses which would have an aperture ring.