I've worked with large format a fair bit, but my lens collection has been mostly limited to older American made pieces from Kodak and a few lesser known makers. These tend to be excellent lenses, but many are Tessar derivatives and have their limitations-they are slow and need to be stopped down a decent amount to get the corner sharpness up to par(sometimes past diffraction limits). I've been meaning to pick up a "modern" 150mm lens from one of the major makers. Unfortunately, that got shuffled down the priority list. I'm an unapologetic wide angle junkie, and in medium format wide angle options get very expensive very fast(my 50mm Zeiss Distagon in Hasselblad V mount is a ~$300 lens-the 40mm runs 4 figures and is only about a 24mm equivalent). I was window shopping at KEH, and came across this for a VERY reasonable price the other day. Reports of this lens are that its sharpness and color rendition are excellent, and it has a very generous image circle for 4x5. It will also JUST fit a Speed Graphic, although the bellow get a bit snug. I have some pre-drilled Pacemaker Graphic boards on hand, so the only concern will be if a Copal 0 is too small for any I already have. If not, that will mean drilling a blank board(I think my local shop has some) or ordering one pre-drilled. Fortunately, neither option is that expensive, although my ability to do a good job drilling my own boards is limited. I have a second 4x5 camera-an old Burke and James view camera. It only came with one lens board, and it has a huge(Acme #3) shutter on it. Fortunately, the board is wood, so I'm hoping that if I spend the time I can make more boards. The board is a fair bit larger than a Pacemaker 4x5, so I'd like to build a sort of "generic" board where I can lock a Pacemaker board into the center. In any case, I hope I can be posting images from this lens next week.