Hello,

the aperture blades on the Copal 1 shutter of my recently aquired Grandagon-N 4.5/90mm don't match. (I hadn't noticed it before as I did not have the time to use the lens since I have received it.) They go from 5.6 to 64, while they should go from 4.5 to 45.
As 4.5 to 5.6 is 2/3 of a stop, will I get correct exposures if I simply set the lever to 22 2/3 if I wish to have an aperture of 22? As I am curently on a trip where I would like to use the lens, I cannot run test shots first.
Your help would be much appreciated. Cheers

Aender