Quote Originally Posted by Richard Jepsen View Post
I'm trying to remember what happens when you place a longer lense on a short mount. I think your head height increases and you may run out of bellows to focus with small enlargements. Regardless, if I purchase this enlarger I will try to buy the right mount.
No change in head height, you just need extra bellows extension equal to the difference between the long and short mount. Many enlargers have plenty of bellows, even inexpensive ones. The big exception is the Omega D3 (and some other early Omegas) that have very limited bellows range and won't focus without a near exact match between lens and its recommended lens mount or cone.