lct Posted February 13, 2011 Share #21 Posted February 13, 2011 Advertisement (gone after registration) I'm not sure if you have just purchased the older 90 pre-AA or current 90 AA lens - I have the former and had a lot of difficulty getting sharp shots with it, even on a tripod. I sent it to DAG for adjustment and, he was able, after some difficulty, to improve the focusing accuracy. He advised that some 90s just don't seem to take to digital... Bit of a concern for me. I've acquired a mint pre-AA Sumicron-M last december with hope it is as good as my favorite pre-AA Summicron-R but i couldn't get it to focus properly even at medium apertures. Sent it in Germany under warranty but the problem was not addressed. Sent it in again and still waiting for the lens... Link to post Share on other sites More sharing options...
Advertisement Posted February 13, 2011 Posted February 13, 2011 Hi lct, Take a look here Camera? Lens? Human?. I'm sure you'll find what you were looking for!
jaapv Posted February 18, 2011 Share #22 Posted February 18, 2011 I just purchased a 90mm Summicron (E55) lens. Today I finally had some time to shoot some test images. After reviewing the test results I found out that all the shots came out blurry. After reviewing it more up close I saw that the focus is off and totally different items are sharp. It this the so called Front-focus/Back-focus problem? And is this a camera issue or is my newly acquired lens the problem? I never had focus problems with my 35mm f2 asph. In this picture I focussed on the text of the card. Focusproblem | Flickr - Photo Sharing! If you just drive by Will van Manen in Zoetermeer (phone first) he will be able to tell you what is wrong - and fix it as well. Link to post Share on other sites More sharing options...
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