npub1eqajau5e4xqlhuktt2gvkk4m4vnn7h92tfvcmdkku5xvxll5ny2sj86nqz (npub1eqa…6nqz)
Vignetting? Sounds like maybe an adaptor issue there, I don't think I have had vignetting shooting film on the Zenit with the Mir-20. Will take a closer look though, got me thinking 😅