The 21mm Troika, Biogon C, Super Elmar, and Super-Angulon.


(From: T&T and Mr B Abrahamsson)

Here is a nice thread on Rangefinderforum, started and supported by Tom A, about the top “slow” 21 mm rangefinder lenses:
The “slow” 21mm’s - Se 21f3.4/SA 21f3.4/C Biogon 21f4.5 and more


(From: T&T and Mr B Abrahamsson) 		 
(From: T&T and Mr B Abrahamsson)