M42] Industar 50-2 50mm F3.5 Review – small pancake Russian lens but produces a sharp picture | Overland25
Could someone help me figure out the filter thread size of this industar 50- 2, I've been able to figure out that it's smaller than 37mm but that's about it : r/AskPhotography
INDUSTAR 55mm f/2.8 N-61 L/D
Industar 50-2 lens Soviet 3.5/50 mm M42 + adapter CANON EOS | eBay
Ungeekiness.: Industar-50-2 50mm f/3.5 lens sample photos without pp.
Industar 50-2 - PentaxForums.com
Industar 50-2 review for travel photography, get vintage images easily – Finland based travel photographer – Blog About Best Places to Visit in Europe | Engineerontour