Of course if Cxxxn is quiet enough then there is no need to go Leica. Pentax shutter and film advance have always been whiny in my experience. Of course Cxxxn didn't used to be better--heard an A1 lately?
Do I understand late Canon equipment is quieter because the AF motor is inside each lens?
It has been suggested that the M 20/4 and 28/2 are not as good as their larger K predecessors.
True but tests show that differences are small as far as resolution and contrast are concerned. Distorsion, vignetting and full aperture performance is where it hurts a bit more, although both M lenses are perfectly suitable for nature photography where good lighting and small f stops are usually part of the game.
Pentax M equipment was competing against Olympus and late Minolta equipments to get the attention of the nature photographers (pros, semi-pros and amateurs as well).
Andre
