it has no aperture blades, always open. It belongs to the night vision NZT-1. Nice alternative to Helios-40, cheaper, but not that easy to find. There were many of them 10 years ago in Germany, probably the old Soviet Army staff.
it has no aperture blades, always open. It belongs to the night vision NZT-1. Nice alternative to Helios-40, cheaper, but not that easy to find. There were many of them 10 years ago in Germany, probably the old Soviet Army staff.
Ah, I see. Thanks for the info. Sorry it's taken me so long to reply, but I've been trying to find various bits and bags for my 7 cameras and running films through some of them to test them.