I have an opportunity to buy for about $100 a Fujinon 90mm f/5.6 SWD. However, the shutter is known to be an issue: "Fujinon 90mm Wide-Angle lens on a lensboard that locks up at some shutter speeds.- $110.00 The issues with the last two lenses listed here may be minor (cleaning and lube), or they also could be major (replacement of Copal shutter)." I know this is a heavy lens, and it will go on a Caltar rail camera that won't be more than 200 yards from the car. I am new to Large Format. I have had a great time and some success with my old Caltar, using the 215mm f/6.3 that came with it. I already own the Caltar 90mm f/8 Wide Field, but working inside the recessed lens board is so cramped, I haven't shot with it yet. I'm pretty comfortable mucking around inside 35mm cameras. I've resuscitated many a shutter with (increasingly strong as necessary) solvents. So, two questions: 1) Will I ever notice a difference between a modern Fuji SWD and the Caltar? 2) Is the risk of a difficult / unusable shutter a good risk / reward opportunity given the price? I'm probably missing a bunch of other angles. Please let me know your thoughts!