Originally posted by grahame I know, all three lenses are for 135. I guess pentax just want to remind people they can make all three formats, in a interesting way.
Expensive way to do that then, designing 3 high quality premium lenses just for that...
And there is a little problem.
43mm is precisely correct but it's 30mm for the half frame and pentax did not have 6x6 so that leaves 6x4,5 with 72mm or 6x7 with 88mm
So the story doesn't really fit...
When you read the story about the 43 and 77mm most likely 31mm simply also falls in the sweet spot of most photographers preference?