Progress Photos from the Cosina C1

Discussion in 'Film Cameras' started by ReD, Dec 12, 2013.

  1. ReD

    ReD Hall of Famer

    Mar 27, 2013
    Progress Photos from the Cosina C1 - Some feedback please

    Cosina C1 50 lens - Tudorcolor 200

    Photo A 50mm

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    Compare F660 (approx 60-70)

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    Cosina 50 Lens Typical Bleach Out

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    I haven’t noticed the bleach out this bad from either my Fuji Stx 1 or the Konica S3

    In some respects I quite like the effect but would prefer to avoid it – any suggestions as to the root cause?
    The negs look reasonably even under a mag glass so I wonder if its the scanner – Have I answered my own question?
    A - Not really as shots taken with the 28mm Tamron are more even with far less bleaching.

    On the other hand the bokeh from the Cosina 50 is very cool I think
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  2. KillRamsey

    KillRamsey Super Moderator

    Jun 20, 2012
    Cambridge, MA
    Images must be on flickr? Because they won't display on this work pc, where flickr is blocked.
  3. ReD

    ReD Hall of Famer

    Mar 27, 2013
  4. ReD

    ReD Hall of Famer

    Mar 27, 2013
    • Like Like x 1
  5. ReD

    ReD Hall of Famer

    Mar 27, 2013
    I have a correction to make - the bleach out is visible on other lenses - so must be camera related or scanner related
  6. pdh

    pdh Legend

    Jan 2, 2011
    Try scanning the same frame twice, but for the second scan (physically) turn it 180° so the left hand side is now on the right hand side.
    If the lighter area that is currently showing on the LHS shows in the same place on the frame (i.e. on the LHS) it's the scanner.
    If it stays in the same place on the frame itself, then it's an area of higher density on the film, in which case it's probably the light traps in the camera.

    have I made myself sufficiently unclear? (I can't quite think how better to explain at the moment :rolleyes:
  7. ReD

    ReD Hall of Famer

    Mar 27, 2013
    Yup thanks will do

    have you seen this before? - I've Googled Cosina C1 images (not that many) and it does appear to be a family trait - a bit more noticeable on wider shots than close ups
  8. pdh

    pdh Legend

    Jan 2, 2011
    Well I've seen light leaks before and that's what it looks like. But scanners can produce similar I'm sure.
    Hadn't come across the C1 before but then there's a zillion cameras out there.

    The commonest light leaks are caused by the light traps round the door. If the C1 has a little window in the back to show the cassette that's also a possible source.

    If we can't nail it down here, you could try joining "I shoot Film" at Flickr ( and ask there. Better than or RFF for this sort of problem IMO. It's such a big active group there's usually someone about who actually has the same camera and can offer advice or support.
  9. ReD

    ReD Hall of Famer

    Mar 27, 2013
    Update - No change via scanner

    On thumbnails I can make out a central circle in "true" colour with the perimeter fading & bleached
  10. ReD

    ReD Hall of Famer

    Mar 27, 2013

    Thanks for reply Paul - Yes it does have a film window

    The door appears only to have light seals on hinge side & around the window - no evidence of any light seal on open side or top & bottom of door
  11. pdh

    pdh Legend

    Jan 2, 2011
    Maybe that's just the design? (my old folders don't have fabric or foam traps at all, they use baffles only) - but then maybe it isn't & the seal foam/fabric (usually the former) might be missing.

    It can be the work of 20 mins and the expenditure of less than a fiver to fit new light traps.

    I did a vague google and came up with someone saying something about light traps in the mirror box on the C1, but I wasn't clear at all what he was saying.

    What you really need is someone who's familiar with this particular camera rather than me rambling on and speculating. Although I am pretty sure you're looking at light leaks.
  12. ReD

    ReD Hall of Famer

    Mar 27, 2013
    yes I agree its the design & the seals are as orginal - its a very firm back door no sign of springing or looseness

    I will run another cheapo film through but tape all the joints & window just to see
  13. pdh

    pdh Legend

    Jan 2, 2011
    Good plan
  14. ReD

    ReD Hall of Famer

    Mar 27, 2013
    Sorry to say the plan didn't work
    still have the same problem after taping up

    So I'll return the camera - its been fun but I think from now on it will be digital & the old STX1 + meter for me
    its a pity because the Cosina C1 is one of nicest most tactile cameras I've had in my hand
  15. ReD

    ReD Hall of Famer

    Mar 27, 2013
  16. ReD

    ReD Hall of Famer

    Mar 27, 2013
    For all its faults there is something I find quite beguiling with this lens & I’ve never had anything quite like it.

    The film & processing could be a lot better (& best say nothing of my composition skills) but I may just try to get it fixed instead of returning for a refund.

    Any suggestions? Tips ? Hints?

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