The last stage of assembling the blades was a nice jump cut! That stage took me 2-3 hours! I would say, never handle the blades-finger moisture can cause rust, and never apply oil. That'll cause problems down the line for you...
2:55 You oiled the aperture blades? No way man, never do that. Clean everything with naphtha and leave it like that. Putting oil on or near the blades will guarantee you're going to have problems again.
@@jasperbrilman8633 It happens when I turn focus to closest distance. And I can't figure out where is limiter that prevents lens unscrewing from helicoid.
