I want to buy a 35mm/1.8-2.8, 40mm/? or 50mm/1.8/2 lens in LTM/M39 mount. Only looking for 1 lens. Needs to be w/o issues. I don't expect perfect, but don't want a problem lens. Also, not looking for a high dollar or collector item. I want to use it on a Canon P. No FSU lens, unless it has already been calibrated to LTM standard. Let me know if you have one not being used. Will buy or trade.