my point of view (Chi Yuen):
Schneider 150mm f5.6 APO Symmar L, 4X5 Film
my point of view (Chi Yuen):
Pentax 67, Wollensak 300mm f5.6 lens
my point of view (Chi Yuen):
Pentax 67, Wollensak 300mm f5.6 lens
my point of view (Chi Yuen):
Pentax 67 with Pentacon 500mm f5.6 lens