Lapla is the flat lensboard, and best for 75 or 80 mm lenses; Setopla is the recessed lensboard, and best for 50mm. You can use the Setlopla for the 75/80 mm but will be limited on the smallest print size. The Setopla cannot be reversed. Both were available in 25mm and 39mm threaded versions, and I found my Lapla 39mm lensboard on ebay.
I recommend a heat absorbing glass in the filter drawer, just on theoretical reasons--that would not have to be Durst, just one the right size.
I only have the Setopla lens board and use the 601 to enlarge MF. Thanks to a member recommendation I confirmed the combination of a 15mm extension tube with the Setopla is the equivalent to using the correct flat board for 75/80mm optic. Now you can install the Setopia correctly.
If enlarging MF suggest using a PH212 150w with glass universal carrier.
Last edited by Richard Jepsen; 01-21-2013 at 01:01 PM. Click to view previous post history.