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Thread: C-Mount lenses - alternatives to Ebay?

  1. #51
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    Re: C-Mount lenses - alternatives to Ebay?

    Quote Originally Posted by apicius9 View Post
    I am also a bit worried about the extension tubes, they seem to be aluminum and 'grind' a little bit, I'm afraid I'll get small metal particles on the sensor. Now my thought is to sacrifice one c-mount adapter and glue it to the tube piece so that the bellows will sit correctly when I attach it. I could also use that combination with all my other c-mounts for macro shots, and I wouldn't have to modify the bellows in any way. Is there any other easy solution I am overlooking?
    The easy solution for me is to attach the lenses to the adapter first, then mount the adapter+lens combination to the camera. I had the same concern about screwing some old, mechanical thread just millimeters from the sensor. Another easy step is to thoroughly clean (blown air, brush, etc.) the c-mount thread on the lens side to get rid of as many particulates as possible.

    To me, c-mount lenses don't exactly lend themselves to quick changes, so when I shoot with those lenses I normally dedicate an entire session to a specific lens, which isn't really much of an issue given that I do that normally in any event. That means I minimize any potential issues that might arise from changing lenses a lot. Certainly if you only have one c-mount lens then it makes some sense to keep it attached to the adapter at all times even though it'll take up more storage space.

  2. #52
    Marcuz
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    Re: C-Mount lenses - alternatives to Ebay?

    Hello i've just registered to this forum, and since my problem is related to the discussion here, i preferred to following with a reply instead to start a new thread; i hope that's fine.

    i just bought me an E P-1, with the 14-42 kit; while i'm not a particularly good photographer, i'm loving it and i'm reading a lot about micro four thirds, and seeing samples of the various cine lenses here and on flickr.

    So, i wanted to buy a 25mm and at first i was attracted by Switar; since i was costantly outbid on them on ebay, i was considering also a Wollensak and other. But i'm a bit confused at this point in which could suit me better.

    basically i'm looking for a soft bokeh and as little vignetting as possible, i do mind less, in comparison about barrel distorsion.

    I would like to use them to film a little also, and so far i have seen outstanding movie results (in regard of resolution/clarity) for the Switar and (in regard of warmth of colors, bokeh) for the cine-nikkor 1.4

    do you have any advice?

    In addition to your advices, i would like to ask a couple of specific questions for which i haven't found answers on the www:

    Are the Wollensak Velostigmat and the Raptar much different in regard of the above?

    Are the two models of Cine-Nikkor 1.4 and the 1.5 different in any other way other than the aperture stop? Would be the Cine-Nikkor 1.4 worth the major cost on ebay in respect to the Wollensok, at the same condition?

    I'm sorry if this post is not very professional, but i would be really happy to have some doubt solved and to learn to use the camera better.

    thanks!
    Last edited by Marcuz; 26th January 2010 at 12:31.

  3. #53
    Marcuz
    Guest

    Re: C-Mount lenses - alternatives to Ebay?

    Quote Originally Posted by Marcuz View Post
    Are the two models of Cine-Nikkor 1.4 and the 1.5 different in any other way other than the aperture stop? Would be the Cine-Nikkor 1.4 worth the major cost on ebay in respect to the Wollensok, at the same condition?
    argh! i meant 1,4 and 1,8! mistype :/

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