
Posted: Fri Feb 09, 2018 12:42 pm
I'm a bit farther down the slippery slope than you are. See
http://www.galerie-photo.com/telechargement/dan-fromm-6x9-lenses-v2-2011-03-29.pdf.
150s and 180s fit comfortably on my Century. ~ 200 mm lenses take, um, heroic measures. For example, a 210/7.7 Beryl S screwed into an adapter that screws into a #1. The adapter and shutter add extension.
The person who posts here as Henry uses a 203/7.5 Optar on his Century, reports that with it the bellows is stretched nearly to the limit. Not good for near subjects but fine for distant ones. The equivalent lens from EKCo is the 203/7.7 Ektar.
To help you think about the problem, according to the bible, 10th edition, the Century's maximum extension is 7 3/4" (= 196 mm). I think Henry squeezed out a little more.
You can find information on lenses, including flange-to-film distances, using links on this list:
https://1drv.ms/b/s!AggQfcczvHGNkGG_P2z8Qiyc8Qo- The list has bookmarks that don't work with on-line pdf readers. Download it.