jonathanchou Posted November 1, 2018 Share Posted November 1, 2018 Hello all, I recently purchased a Pentax 6x7, and I got a few rolls developed - I noticed that a handful of my frames were blank and I discovered that if I shoot at a shutter of 1/500 or 1/1000 the shutter curtain will not open every time. Every 2-4 shutter clicks, the shutter curtain will for some reason decide not to open. Is this a known issue with the camera? I am debating on whether or not I should send it in for repairs or if I should just return it and purchase a different body online. Thanks Link to comment Share on other sites More sharing options...
JDMvW Posted November 1, 2018 Share Posted November 1, 2018 Is this a known issue with the camera? It's actually a "known issue" with most shutters that have been sitting for a long time without use. The quick and dirty solution is to loosen things up by dry firing the shutter repeatedly at all speeds, A more permanent solution is to have someone do a clean/adjust service on the camera. Link to comment Share on other sites More sharing options...
rodeo_joe1 Posted November 1, 2018 Share Posted November 1, 2018 The decision seems a straightforward one of cost. Would the price you paid + repair be cheaper than any return cost + the price of a more reliable camera? Maybe next time buying from a reputable company that checks equipment before sale and offers a warranty. Link to comment Share on other sites More sharing options...
paul ron Posted November 1, 2018 Share Posted November 1, 2018 i dont have any experiance with pentax 67 but... when shutters sit for a long time, a cla is the best remedy. that will at least ensure reliable service for a long time. if you still have the option to return it, return it! also.... if you got it for dirt cheap n want to kkeep it.... i distinctly remember you have an option to use lenses with leaf shutters built in... is that something you may consider? . The more you say, the less people listen. Link to comment Share on other sites More sharing options...
steve_rasmussen Posted November 2, 2018 Share Posted November 2, 2018 I have heard of the high speed shutter issue with the Pentax before but it is rare. I would return the camera. Link to comment Share on other sites More sharing options...
Aoresteen Posted November 7, 2018 Share Posted November 7, 2018 I'd have it serviced. Eric Hendrickson restored my Pentax 6x7 and it works flawlessly now. Home-Pentaxs He is also the go-to-guy for 35mm Pentax cameras. He's done 4 ESII bodies & a K100, and two Pentax SL bodies for me. Highly recommended. Link to comment Share on other sites More sharing options...
Silent Street Posted November 8, 2018 Share Posted November 8, 2018 Derangement of shutter speeds is common with the older first to third generation Pentax 6x7 cameras; there were small engineering improvements to the circuit under the shutter speed dial in the 1989-release Pentax 67. When not used the shutter speed dial should be set to B and, if and where fitted, the mirror lock-up taped over to prevent accidental activation (which will flatten the battery). Setting the dial to bulb does not use any power until such time as mirror lock-up is activated. The problem is not rare with the Pentax 6x7, and can be accompanied by shutter drag; I have seen about 30 such examples since the early 2000s, and most of those have come about through neglect rather than misadventure. I would also be confident in saying the seller would have been aware of this as an existing problem and thus you do have grounds for returning the camera for a refund unless you go the (potentially) expensive route of repairs. In many cases, repairs can be more than the net worth of these cameras and in also go into a cycle of continuous redundancy and unreliability as parts are taken from other cameras (new parts have long ago ceased to be available). Garyh | AUS Pentax 67 w/ ME | Swiss ALPA SWA12 A/D | ZeroImage 69 multiformat pinhole | Canon EOS 1N+PDB E1 Kodachrome, Ektachrome, Fujichrome E6 user since 1977. Ilfochrome Classic Master print technician (2003-2010) | Hybridised RA-4 print production from Heidelberg Tango scans Link to comment Share on other sites More sharing options...
Aoresteen Posted November 8, 2018 Share Posted November 8, 2018 I'd have it serviced. Eric Hendrickson restored my Pentax 6x7 and it works flawlessly now. Home-Pentaxs He is also the go-to-guy for 35mm Pentax cameras. He's done 4 ESII bodies & a K100, and two Pentax SL bodies for me. Highly recommended. Opps! Should say "K1000" Link to comment Share on other sites More sharing options...
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