joshua daniels Posted September 12, 2006 Share Posted September 12, 2006 I was hoping someone could direct me to a reputable / reliable repair person or facility that might help repair a minor problem with a 100/3.5 Mamiya lens on my Mamiya Press camera. The lens seems to have some grit or sand in the focusing helical and needs to be disassembled, cleaned, and regreased. I realize that any number of shops might do this, but I would prefer working with someone who knows these cameras and lenses. Suggestions appreciated! Link to comment Share on other sites More sharing options...
roger krueger Posted September 13, 2006 Share Posted September 13, 2006 http://www.procamerarepair.com/ These people have done CLA's on my 150/5.6 and 50/6.3. For my taste the helicoid grease they put in the 150 was way too stiff, but the work was otherwise competent. They also repaired a damaged rangefinder coupling adjust screw in my 100/2.8, but that's more of a mixed experience--the repair worked well for about 3 years, but eventually failed catastrophicly, causing irreperable damage to the brass attachment on the helicoid that the adjuster screw rides on. Really, these lenses aren't rocket science, I was able to break down the 150 and relube the too-tight helicoid myself. It's not like you have a lot to lose, used 100's are hardly more than the price of a CLA. Note that there is a specific lube for helicoids, motor oil and Vaseline are not substitutes :-) Link to comment Share on other sites More sharing options...
harris_goldstein Posted September 13, 2006 Share Posted September 13, 2006 I've used Paul Ebel in Wisconsin: 651-335-8759 Link to comment Share on other sites More sharing options...
andrew chalsma Posted September 14, 2006 Share Posted September 14, 2006 It may be dried grease in there. My 100/3.5 got a gritty bound up feeling (I hate that!) one day for no known reason. I tried a squirt of solvent (umm, lighter fluid) and it has been fine for several months. I have no idea if this could do harm to the lens (maybe some little plastic bit is hidden in there...) Link to comment Share on other sites More sharing options...
joshua daniels Posted September 15, 2006 Author Share Posted September 15, 2006 Thanks for the responses. Very helpful! Joshua Link to comment Share on other sites More sharing options...
john_flinn Posted April 30, 2012 Share Posted April 30, 2012 <p> I've had the Seiko shutters from my Mamiya Super 23 serviced at Advance Camera in Beaverton Oregon (503-292-7298) with wonderful results. My F2.8 100mm and the F3.5 100mm lenses work flawlessly now. They also do a great job on the old Compur dial set and rim set shutters as well. <br> John</p> Link to comment Share on other sites More sharing options...
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