worldpixel Posted March 7, 2015 Share Posted March 7, 2015 Last week , my uncle told me about an old minolta af 70-210 lens he had just stored away. When I saw it , there was a lot of fungus and I had it cleaned by the repair guy , and the aperture was fixed. << Prior to the cleaning I kinda broke off one of the electrical connections ( I think it can be soldiered ) but I'm not totally sure because I was thinking of using the lens manual anyway. I got a fotasy sony amount to emount adapter which is manual only. So when I tested the newly cleaned and fixed lens, it works well but I noticed it was dark unless I was outside. I found out the aperture was in it's default focal length, I think it's probably around f/8 or f/11 and there's no way of controlling the aperture manually. Did some research > http://photo.net/nikon-camera-forum/00X2Wi?start=10 << and there's a suggestion using hot glue or epoxy on the aperture so it's wide open. It's f4 on this beercan version but mine is around f4.,5 - 5.6. I tried hot glue but it's not enough , epoxy works. It's probably stuck on 4.5 now and I can't use the zoom of focus ring on the lens, must be because the epoxy applied was too much. I already spent around 120 usd on repairing this lens and buying the adapter , and it feels like I wasted money on what I could have used for a new sigma lens. 1.) So now its stuck on 70 mm , with a 4.5 focal length. The focus ring is stuck. 2.) If I didn't touch the internals before the cleaning, I could have bought an electronic adapter but that would cost like 200 usd here. 3.) If I didn't use epoxy , I could use zoom and focus ring but the aperture would be around f/8. If anyone can help me out here please do. Link to post Share on other sites More sharing options...
Advertisement Posted March 7, 2015 Posted March 7, 2015 Hi worldpixel, Take a look here Minolta af 70-210 on the a6000 - having issues. I'm sure you'll find what you were looking for!
Kirkp Posted March 7, 2015 Share Posted March 7, 2015 Take it back to the repair guy? Link to post Share on other sites More sharing options...
worldpixel Posted March 7, 2015 Author Share Posted March 7, 2015 I already spent like 100 usd on the repair and adapter, so another 50 for repair which I dont think would solve the problem. I can probably remove the epoxy but it goes back to the default aperture, I wish there was a way to use like an adapter that you can change the aperture manually, or if you know a cheaper adapter please let me know. Thanks Link to post Share on other sites More sharing options...
worldpixel Posted March 7, 2015 Author Share Posted March 7, 2015 Update : Well the lens is useless now. The epoxy has spread to its internals and there's no way of fixing it again. The glass is cloudy , and I have just found out that the fotasy adapters do have aperture control. Wheew so stupid =( . It wasn't indicated in any manual , nor was it explained by the seller. http://www.amazon.com/aperture-control-function-indexed-setting/forum/Fx1WVU4YO0DF2OY/TxZIYSOU7Q3JB5/1/ref=cm_cd_naredir?_encoding=UTF8&asin=B004G3D61W&cdItems=25&store=generic Feel so bad right now. Link to post Share on other sites More sharing options...
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