Quote Originally Posted by VPooler View Post
There also seems to be a fixed iris right in the middle, so my guess is that if it really consists of cells, it could gain a stop in a shutter?

By the way, I really like Tominons, even at low magnifications. Despite being reverse-tessar macro lenses, they draw good at my opinion.
No.

Not all of the Tominon macro lenses made for Polaroid are reversed tessars. And there are better macro lenses, some of which are f/6.3 reversed tessars. Two such are the CZJ (DDR) 90/6.3 Mikrotar and the Reichert 100/6.3 Neupolar. These two are among the best ~ 100 mm macro lenses.