CZJ fanboy
New member
I'm rather surprised you would say this: "All in all, Nikon probably has a bigger market and old high end lenses available, but Pentax offers stabilization on old lenses."
The flange focal distance of the Pentax K/M42 system is 45.46mm, where Nikon's F mount is 46.50. Nikon's system places the rear lens element about as far back from the senor as any system out there, which means that no lens can achieve infinity focus (or even close to it) other than Nikon lenses and 3rd party lenses made for Nikon.
Correction: you can use M42 et al, but only with an adapter that has an extra optical element if you want infinity focus (not a good alternative).
So while it is true that plenty of great old Nikon and Pentax glass exists out there for those willing (like me) to stop down and focus manually, Pentax users can avail themselves of both lenses with an adapter, while Nikon users can't.
I've plenty of experience using Pentax DSLRs with old lenses (as my user name implies!) and can tell you that the *istDS, K-10D, K-20D and now K-7 have proven to be marvelous at exploiting my large collection of Carl Zeiss Jena and Meyer Optik golden oldies.
Pentax provides focus confirmation in the viewfinder (visual and auditory) and it's bang-on. Metering is very good and easy to optimize.
My only criticism, and it applies to every DSLR out there, is that the focusing screen can't precisely accommodate fast lenses (under f/4: but that applies to all lenses, including fast primes designed for digital.)
By the way, with a flange-back distance of 20mm, Micro Four Thirds is the universal receiver. And all kinds of adapters exist for it (even for Praktica B!).
But I still favour Pentax, all things considered.
The flange focal distance of the Pentax K/M42 system is 45.46mm, where Nikon's F mount is 46.50. Nikon's system places the rear lens element about as far back from the senor as any system out there, which means that no lens can achieve infinity focus (or even close to it) other than Nikon lenses and 3rd party lenses made for Nikon.
Correction: you can use M42 et al, but only with an adapter that has an extra optical element if you want infinity focus (not a good alternative).
So while it is true that plenty of great old Nikon and Pentax glass exists out there for those willing (like me) to stop down and focus manually, Pentax users can avail themselves of both lenses with an adapter, while Nikon users can't.
I've plenty of experience using Pentax DSLRs with old lenses (as my user name implies!) and can tell you that the *istDS, K-10D, K-20D and now K-7 have proven to be marvelous at exploiting my large collection of Carl Zeiss Jena and Meyer Optik golden oldies.
Pentax provides focus confirmation in the viewfinder (visual and auditory) and it's bang-on. Metering is very good and easy to optimize.
My only criticism, and it applies to every DSLR out there, is that the focusing screen can't precisely accommodate fast lenses (under f/4: but that applies to all lenses, including fast primes designed for digital.)
By the way, with a flange-back distance of 20mm, Micro Four Thirds is the universal receiver. And all kinds of adapters exist for it (even for Praktica B!).
But I still favour Pentax, all things considered.