Originally Posted by 6x7
This is the real finder blockage of the Nokton:
Been there and done that, to me that is unusable.
SBOOI it or use a small diameter lens like the Elmar and their clones or anything f2 or f1.8 like the Summars , Summitars , Canon f1.9 or f1.8 or J8.
The old school f 1.5/f1.4 lenses work OK too .
The J3 , Canon f1.5, Nikkor f1.4 and even the bulky Summarit f 1.5 work ok sans SBOOI
I have all these lenses and plenty of Barnacks, so I tried many combinations.