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Yashica DSB 50mm f1.9 trouble
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PostPosted: Fri Jan 24, 2020 12:06 pm    Post subject: Yashica DSB 50mm f1.9 trouble Reply with quote

Years ago I saved a nice Yashica FR-1 outfit from being 'Dumped' together with a Contax RTS II Quartz. Now the Yashica DSB 50mm f1.9 no longer 'stops down' When I pull round the spring on rear it moves round but does not stop down the aperture. It is a a good sharp lens but I have to use it at f1.9 all the time. Any Help here about repair myself or is it a'Professional and Costly' job ?


PostPosted: Fri Jan 24, 2020 2:59 pm    Post subject: Re: Yashica DSB 50mm f1.9 trouble Reply with quote

Text (no pictures) version of teardown process:
https://www.rangefinderforum.com/classics/forum/messages/2/26116.html?1357874712


PostPosted: Fri Jan 24, 2020 4:15 pm    Post subject: Reply with quote

YO !! Very Helpful !! Luckily I have NO OIL on aperture blades -- I just need to hook up a spring perhaps to get it to 'stop down' again -----