Ian Rance Posted July 12, 2009 Author Share Posted July 12, 2009 <p>Thank you for replying Sover - and yes I can fully see the appeal of the F2. You mention possible problems, well the F2SB did not display aperture readings with the MD attached - but neither I nor the staff were sure if this was a fault or just a quirk. Yes - the foams were all shot.</p> <p>The shop is in London, however the F2 is not on their 'for sale' section of the website nor on display to the public so I will ask them if it is OK to pass the camera details on. If so I will let you know.</p> <p>Ian</p> Link to comment Share on other sites More sharing options...
steve_barrett Posted July 12, 2009 Share Posted July 12, 2009 <p>What causes the DP-3/12 ring resistors to wear out? Why can only 50% of those worn out be reconditioned?</p> Link to comment Share on other sites More sharing options...
theodore_papageorgiou Posted July 13, 2009 Share Posted July 13, 2009 <p>And something silly enough question.<br> Why isn't it possible to make such a ring resistor?Do we need high tech for this?<br> I ask especially Sover.<br> Theodore.</p> Link to comment Share on other sites More sharing options...
sover_wong1 Posted July 13, 2009 Share Posted July 13, 2009 <p>Hi Theodore,<br> In theory yes, given the high tech equipment. The DP-3/12 ring resistor has carbon and fine metal fingers deposited over a glass substrate. The carbon part is never touched, but the metal deposit is only 5 microns thick and they wear out very quickly. Even the dreaded DP-1 carbon ring resistor is more durable than the DP-3/12 ring resistors.<br> I have several DP-3s and DP-12s here I cannot repair because they have bad ring resistors.<br> Regards,<br> Sover</p> Link to comment Share on other sites More sharing options...
steve_barrett Posted July 13, 2009 Share Posted July 13, 2009 <p>Sover,<br />If the DP-3/12 ring resistors wear out "quickly", shouldn't they ALL be worn out by now? After all, the youngest of these prisms is almost 30 years old. I have a DP-12 that works fine. Why do some wear out and some don't? Is it related to the amount of use, 'luck' or some other factor?</p> <p> </p> Link to comment Share on other sites More sharing options...
sover_wong1 Posted July 13, 2009 Share Posted July 13, 2009 <p>Hi Steve,<br> I found all DP-3/12s below Exc++ have worn ring resistors. The ring resistors never wear out completely, but the parts where they're most used have worn contact areas, resulting in very unstable meter readings.<br> Hence only buy DP-12 Exc++ or better.<br> Regards,<br> Sover</p> Link to comment Share on other sites More sharing options...
matt_smith24 Posted July 17, 2009 Share Posted July 17, 2009 <p>Bought a new black F2AS in 1980 and a new F3 in early 1981. Sold the F3 not long after as even though it was a very nice camera it didn't have the solid feel or the wonderfully bright viewfinder of the F2AS. The metering on the AS was measurable to 1/5th of a stop in the viewfinder. IMHO the F2 with DP-12 photomic head (making the F2AS) is the best manual Nikon SLR ever made and unlike the F3 and latter models could still operate without a battery. Black models in the same condition are worth more than the silver.</p> Link to comment Share on other sites More sharing options...
larry_miller5 Posted February 17, 2012 Share Posted February 17, 2012 <p>I bought a new F2 Titan a few years ago from Hong Kong. A bit expensive but it was brand new with all the papers. Now I realize it's a collectors item but I use it every day practically. No sitting on the shelf for this camera. Ever.....</p> Link to comment Share on other sites More sharing options...
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