Topic: Carl Zeiss Jena Flektogon 35mm f2.4 (on APS-C camera)
Well, i suppose there is no need to introduce this lens, i think it is the most discussed one on the internet ...
Probably at f/4 or f/5.6:
Almost sure it was wide open:
Didn't note the f/stop, sorry:
Finally, at f/2.4 (yes, wide open) with an extension ring of 5mm:
No PP on the picture, just some EV adjust ...
Takumar:24/3.5, 28/3.5, 35/2, 35/3.5, 50/1.4, 55/1.8, 85/1.8, 105/2.8, 120/2.8, 135/3.5, 150/4, 200/4
Pentax:M28/2.8, K28/3.5, M50/1.4, A50/1.7, K85/1.8, K105/2.8, K135/2.5, M200/4
CZJ:Flektogon 20/2.8 & 20/4 & 35/2.4 & 35/2.8, Pancolar 50/1.8, Biotar 58/2, Sonnar 135/3.5 & 180/2.8