I was just looking over the spec sheet on this fine lens, interested mainly in the flange focus distance. Usually large format lenses flange focus distance is around the same as the focal length or slightly less and with telephoto designs quite a bit less. This new Cooke lens is only really close when using both front and rear group together but are quite dramatically more when only using the front or only the back group. Is this the way convertible lenses are or am I not understanding the spec sheet? I was hoping this lens would work nicely on a Phillips Compact II which has about 26" of bellows allowing up to a 660mm flange focus distance.
Cheers,
Bookmarks