Sleeping with the enemy.
Posted 16/12/2010 - 10:43
Link
Smeggypants wrote:
The Nikon mount has a larger registration distance by about 1mm
http://en.wikipedia.org/wiki/Lens_mounts
Does this mean that infinity focus on a nikkr lens on a pentax body is achieved before the focus barrel actually reaches what would be infinity if the lens was on nikon?
So presumably if it was the other way around you wouldn't be able to infinity focus a pentax lens on a nikon body ( if it were possible top mount it )
It makes sense becuase if you insert a macro tube you make a larger registration distance and you cannot focus to infinity. Correct?
This is also interesting.
http://www.graphics.cornell.edu/~westin/misc/mounts-by-register.html
Yes, Nikkor lenses will focus slightly past infinity on a Pentax body, Pentax lenses wouldn't quite reach infinity on a Nikon body. Your analogy with macro tubes is spot on.
mowog wrote:
Yes, the Nikkors do focus to infinity on a K body.
I was just checking the registration distance between Nikon and Pentax.Yes, the Nikkors do focus to infinity on a K body.
The Nikon mount has a larger registration distance by about 1mm
http://en.wikipedia.org/wiki/Lens_mounts
Does this mean that infinity focus on a nikkr lens on a pentax body is achieved before the focus barrel actually reaches what would be infinity if the lens was on nikon?
So presumably if it was the other way around you wouldn't be able to infinity focus a pentax lens on a nikon body ( if it were possible top mount it )
It makes sense becuase if you insert a macro tube you make a larger registration distance and you cannot focus to infinity. Correct?
This is also interesting.
http://www.graphics.cornell.edu/~westin/misc/mounts-by-register.html
Joining the Q
Posted 17/12/2010 - 02:20
Link
Thanks hefty. Still learning about this aspect of snapping
Cool!!
Cool!!
[i]Bodies: 1x K-5IIs, 2x K-5, Sony TX-5, Nokia 808
Lenses: Pentax DA 10-17mm ED(IF) Fish Eye, Pentax DA 14mm f/2.8, Sigma 17-70mm f/2.8, Pentax-A 28mm f/2.8, Sigma 30mm F1.4 EX DC, Pentax-A 50mm f/1.2, Pentax-A 50mm f/1.4, Pentax-FA 50mm f/1.4, Pentax-A 50mm f/1.7, Pentax DA* 50-135mm f/2.8, Sigma 135-400mm APO DG, and more ..
Flash: AF-540FGZ, Vivitar 283
Lenses: Pentax DA 10-17mm ED(IF) Fish Eye, Pentax DA 14mm f/2.8, Sigma 17-70mm f/2.8, Pentax-A 28mm f/2.8, Sigma 30mm F1.4 EX DC, Pentax-A 50mm f/1.2, Pentax-A 50mm f/1.4, Pentax-FA 50mm f/1.4, Pentax-A 50mm f/1.7, Pentax DA* 50-135mm f/2.8, Sigma 135-400mm APO DG, and more ..
Flash: AF-540FGZ, Vivitar 283
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7671 posts
17 years
Smegland
Yes, the Nikkors do focus to infinity on a K body.
The Nikon mount has a larger registration distance by about 1mm
http://en.wikipedia.org/wiki/Lens_mounts
Does this mean that infinity focus on a nikkr lens on a pentax body is achieved before the focus barrel actually reaches what would be infinity if the lens was on nikon?
So presumably if it was the other way around you wouldn't be able to infinity focus a pentax lens on a nikon body ( if it were possible top mount it )
It makes sense becuase if you insert a macro tube you make a larger registration distance and you cannot focus to infinity. Correct?
This is also interesting.
http://www.graphics.cornell.edu/~westin/misc/mounts-by-register.html
Lenses: Pentax DA 10-17mm ED(IF) Fish Eye, Pentax DA 14mm f/2.8, Sigma 17-70mm f/2.8, Pentax-A 28mm f/2.8, Sigma 30mm F1.4 EX DC, Pentax-A 50mm f/1.2, Pentax-A 50mm f/1.4, Pentax-FA 50mm f/1.4, Pentax-A 50mm f/1.7, Pentax DA* 50-135mm f/2.8, Sigma 135-400mm APO DG, and more ..
Flash: AF-540FGZ, Vivitar 283