Originally posted by Docrwm We essentially have a 28, 40, 50, 85, 70-200, 15, 24-70
I noticed the same and I think it was planned. Because otherwise, the image circles wouldn't match now which is a 2nd indication.
However, some new 645D lenses are said to cover the full image circle (with good enough resolution) only if sold in Japan (because of poor yield). Therefore, I think Pentax should assure customers that existing Q lenses are a good match for the Q7.
Another observation I make:
The image circle for the Q mount is NOT carved in stone AND the mount diameter seems to support much larger image circles than even the Q7 uses (my guess is the mount supports the 1" format).
So, there may be a Q5 or Q3 in the makes with an even larger sensor. But it may need new lenses, at least new wide angle ones. Note that this is my personal speculation. Based on user reaction that the 1/1.7" format is outdated for an ILC, given there is Nikon 1 and Sony RX100. It could be interesting to evaluate the image circles of existing Q lenses.
(As a note I have to make of course, the equivalent 70-200 is to be labelled 70-200/12. F2.8 applies to 15-45 only. Not need to discuss though.)
Last edited by falconeye; 06-12-2013 at 04:37 PM.