jacull Posted November 13, 2006 Share Posted November 13, 2006 Hi, I have 4 lenses for my RB ProSD. I get the impression that the Sekor "C" lenses are the best line for this camera, but I need confirmation of that. I'm posting jpegs of each lens and would appreciate your comments on the quality of the lenses. <br><br> (I'm sorry for the slight motion blur on these jpegs. It's night time and I handheld 1/15 on my digi.) <br><br> Mamiya K/L 90mm:<br> <img src="http://www.jaredcullison.com/images/mamiyakl90_1933.jpg"><br><br> Sekor C 90mm<br> <img src="http://www.jaredcullison.com/images/sekorc90_1931.jpg"><br><br> Sekor C 180mm<br> <img src="http://www.jaredcullison.com/images/sekorc180_1936.jpg"><br><br> Sekor 65mm<br> <img src="http://www.jaredcullison.com/images/sekor65_1930.jpg"><br><br> And, I haven't found in the manual what this switch is for. It switches to "X" or "M"<br> <img src="http://www.jaredcullison.com/images/xswitch_1939.jpg"><br><br> Thanks for your input!<br> JC Link to comment Share on other sites More sharing options...
calvin_lee Posted November 13, 2006 Share Posted November 13, 2006 JC, Actually, the K/L lenses are probably the best RB lenses, in terms of optical quality. However, it is my opinion that the C lenses are better built and are more robust. I have had both lines, but have only kept the C lenses. I believe that they are probably the best bang for the buck out there in medium format. Once, I lightly bumped my 180mm K/L lens against some carpeting. It was a very minor impact. But it was enough to knock the end of the lens barrel slightly loose. The X/M switch is for electronic flash sync or bulb flash. I doubt you'd be using old-style flash bulbs, so you should leave it on X. Enjoy your RB. Cheers, Calvin Link to comment Share on other sites More sharing options...
shambrick007 Posted November 14, 2006 Share Posted November 14, 2006 "I get the impression that the Sekor "C" lenses are the best line for this camera, but I need confirmation of that. "<p>What have *your* results shown? Link to comment Share on other sites More sharing options...
jacull Posted November 14, 2006 Author Share Posted November 14, 2006 Thanks for the input guys! I'm still running tests on the lenses. Only had it for 4 days and I've run out film. Link to comment Share on other sites More sharing options...
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