joshwand Posted February 22, 2004 Share Posted February 22, 2004 My 6x7 (non-MLU) has lately been consistently underexposing by 2-3 stops. The shutter (to my ear) doesn't sound too fast; could it be the lens diapragm somehow? The shots are metered with my handheld meter, which has been confirmed accurate, yet when I use the recommended settings I get thin negs. I'm not averse to a bit of minor disassemly to adjust timing springs, etc if necessary. If it becomes necessary, where might I take my p67 to get repaired in NYC? I know prof. cam. repair closed since I last checked; where are people heading these days? (would have posted this to the p67 forum, but it's experiencing problems) Link to comment Share on other sites More sharing options...
art_haykin Posted February 22, 2004 Share Posted February 22, 2004 You say the shutter "sounds" slow. If this were the case, you'd be OVERexposed. It might well be that the diaphragm isn't opening properly. Take a look. Link to comment Share on other sites More sharing options...
john tonai Posted February 22, 2004 Share Posted February 22, 2004 Art: Nowhere in Josh's question does he mention that his speeds sound slow, he said that it doesn't sound too fast. However, I agree to check the operation of the lens. Josh, is the underexposure consistent at all apertures/speeds? If the diaphragm is stuck at a certain f/stop, it will underexpose some apertures more than another. Check the mechanical linkage on the back of the lens to see if the operation is correct. Also, what shutter speeds are you shooting at? It can be very difficult to hear a difference between 1/500 and 1/125. This could also result in the the exposure problem. Finally, (not to question you or your awareness, but rather to try to eliminate any possible error) is your ISO set correctly on your meter? Link to comment Share on other sites More sharing options...
larry_menzin Posted February 22, 2004 Share Posted February 22, 2004 How about setting your lens to manual to take the auto aperture part out of the equation. If the problem remains, then it must be the shutter. Link to comment Share on other sites More sharing options...
steve_rasmussen Posted February 22, 2004 Share Posted February 22, 2004 Josh, could your please try posting in the P67 Forum again? I've been doing some tweeking on it after seeing your comment. Thanks, Steve P67 Admin. Link to comment Share on other sites More sharing options...
joshwand Posted February 22, 2004 Author Share Posted February 22, 2004 <p>Thanks, I've now posted this in the p67 forum. The link is <a href="http://www.photo.net/bboard/q-and-a-fetch-msg?msg_id=007Tt7">here</a>. <p>I've added some info to the question there to answer some of your questions, mostly now I'm wondering where a good repair shop in NYC is. <p>Thanks,<br> --Josh Link to comment Share on other sites More sharing options...
art_haykin Posted February 22, 2004 Share Posted February 22, 2004 John Tonai wrote: >>>"Art: Nowhere in Josh's question does he mention that his speeds sound slow, he said that it doesn't sound too fast."<<< Sorry, old cock, but I see it as a distinction without a difference. Link to comment Share on other sites More sharing options...
joshwand Posted February 22, 2004 Author Share Posted February 22, 2004 *shrug* It might be the shutter, but I've personally never heard of a shutter being too *fast*. Usually it's the other way around. In any case, to my admittedly untrained ear, the shutter sounds okay as I go through all the speeds. Link to comment Share on other sites More sharing options...
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