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  1. #1
    darinwc's Avatar
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    Anyone know anything about an Orbit SII lens?

    I picked up a 'Orbit S-II 210mm f5.6' lens.
    Does anyone know anything about it?
    Go not to the elves for counsel, for they will say both yes and no.

  2. #2
    Ian Grant's Avatar
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    It's a Calumet re-branded Symmar S and an excellent lens.

    Ian

  3. #3
    holmburgers's Avatar
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    I assume the "S-II" makes it different than this one? -> http://www.apug.org/forums/forum379/...al-no-1-a.html

    My lens somehow doesn't have the aura of a Symmar-S, but I've been wondering about it.
    If you are the big tree, we are the small axe

  4. #4
    darinwc's Avatar
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    Quote Originally Posted by Ian Grant View Post
    It's a Calumet re-branded Symmar S and an excellent lens.

    Ian
    Thanks for confirming that. It looked much like a symmar but Ive never heard of that brand before.
    Go not to the elves for counsel, for they will say both yes and no.

  5. #5
    Jon Shiu's Avatar
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    Quote Originally Posted by holmburgers View Post
    I assume the "S-II" makes it different than this one? -> http://www.apug.org/forums/forum379/...al-no-1-a.html

    My lens somehow doesn't have the aura of a Symmar-S, but I've been wondering about it.
    your lens looks more like an older Caltar, ie copy of Kodak Commercial Ektar, tessar.

    Jon
    Mendocino Coast Black and White Photography: www.jonshiu.com

  6. #6
    holmburgers's Avatar
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    Thanks Jon; that actually corroborates with what darinwc PM'd with. So now I trust that neither of you are "making stuff up"... haah

    Any idea what its coverage would be?
    If you are the big tree, we are the small axe

  7. #7
    Ian Grant's Avatar
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    It's a 7x5 lens, it won't get even close to 10x8. You can easily find the coverage for a 210mm Tessar, but being f6.3 it'll have slightly better corner and edge sharpness wider than f22 (the recommended sharpest aperture) than an f4.5 Tessar or Tessar type lens.

    The best of the Zeiss Tessars was the f6.3 and corners get softer with the f4.5 and f3.5 designs, this is why the late production Xenar's went back to f5.6 from 4.5/4.7.

    Adding: Now I've got home the image circle for that older Orbit 8.5" lens should be about 245mm @ f22

    Ian
    Last edited by Ian Grant; 06-15-2011 at 01:36 PM. Click to view previous post history. Reason: add



 

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