Hey gang, I recently got a B8 for enlarging my 120 negatives from my 'new' Rolleicord. I bought a manual from KBH. I have a question about the condensers. Mine came with the standard (double) condenser as well as the supplementary 13/16" (thicker) lens. I recall reading a post on here somewhere that I can no longer find, that claimed the supplementary condenser lenses weren't really necessary. For 2-1/4" square negs the manual advises a 75-80mm lens, with the standard double plus the thinner 5/8" supplementary lens and 1-1/2" lensmount (board). I have two lensmounts, the flat board for 35 mm negs, and probably the 2" mount--it measures more than 1-1/2" but isn't quite 2", but close to it. I've been using a 90mm Wollensack with the 2" mount and just the normal double condenser, since I don't have the thinner one. I have no problem enlarging to the 8x8" size I normally use for 120, but the time seems to be really excessive compared to an 8x10 from a 35mm neg with my little Durst. I mean something like 16 seconds or more for the 8x8 with the B8 at F5.6 or 8.0 (it's a 4.5 lens), and 6-8 seconds average for an 8x10 with the Durst at 5.6. I'm not sure what I'm asking other than for some sort of discussion or guidance on the lensboard depth and the supplementary condensers from somebody knowledgeable about this enlarger--is the manual's advice fixed in stone as it relates to negative size? Do I need to hunt up the thinner B8 condenser and the 1-1/2" lensboard? How does the 90mm lens relate compared to the 75-80mm they recommend? I've read some people recommend a bit longer lens no matter what you're enlarging. This is all new to me, my little Durst only does 35mm and has a fixed single condenser lens in a filter tray, I only enlarge to 8x10. Other than the long exposure times, I'm quite happy with the coverage, at least with the relatively small 8x8 print size I do. I also printed several 35mm negs to 8x10"s with the same extended lensboard and the 90mm lens with no supplementary condenser added, and they came out fine too. So???