J. Patric Dahlen
13-Aug-2008, 07:11
I've got an ISCO Verlängerungslinse 13,5 / 25,5 and a Verkürzungslinse 25 / 372. Zeiss had their Distar/Proxar lenses that did the same thing.
Has anyone here used these types of accessory lenses, and do they degrade the performance a lot? I thought that maybe the Verlängerungslinse could be used for portraits.
13,5 / 25,5 must mean that the 13,5 cm lens becomes a 25,5 cm with the Verlängerungslinse on, but I don't understand what the 25 / 372 means on the Verkürzungslinse?
Has anyone here used these types of accessory lenses, and do they degrade the performance a lot? I thought that maybe the Verlängerungslinse could be used for portraits.
13,5 / 25,5 must mean that the 13,5 cm lens becomes a 25,5 cm with the Verlängerungslinse on, but I don't understand what the 25 / 372 means on the Verkürzungslinse?