Originally posted by reh321 Why 75mm??What was the 09 supposed to be?A 45-135mm would have continued the 3x series.
I've found that with adapted lenses on the Q 75mm is the "sweet spot", hand-holdable and giving significantly more reach than the 06 in about the same size factor. I've got several 50mm, 70mm, 75mm, 100mm c mount lenses and the longer ones run into diffraction issues as well as being hard to handhold. My Cosmicar 75mm f1.9 is great: sharp and fast and even makes sunstars!:
...it would be even better to have one with modern ED glass.
A 45-135 zoom would be cool but also much larger; I think Pentax's idea was that the Q lenses would remain small and light.
The
09 was actually built and tested—a 25mm f2.8 macro.
Here are three Cosmicar lenses with the 06 to give an idea of scale:
25mm f1.4, Pentax 06, 50mm f1.4, 75mm f1.9
Lots of possibilities, note that the 50mm is about the same size as the 06 but two stops faster!