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peterqd
Joined: 28 Feb 2007
Posts: 7448
Location: near High Wycombe, UK
Expire: 2014-01-04
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 Posted: Fri Sep 14, 2007 8:37 pm Post subject: What caused this problem? |
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peterqd wrote:
I bought a Spotmatic SPII some time ago, mainly for the lenses that were packaged with it, and I took the whole package away the other weekend to give it a trial. You saw the results of the Takumar lenses with the pictures of the donkeys.
In the Spotmatic I loaded a 24-shot roll of cheap Kodak Ultramax 400 colour neg film and I picked up the negs and prints today. One or two of them have a problem. This is a quick and very dirty neg scan:
I haven't replaced the light seals on this camera yet so I don't trust them. What do you think, is this a light leak on the camera or lens flare? Or something else? |
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bob955i
Joined: 15 Apr 2007
Posts: 2495
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| Posted: Fri Sep 14, 2007 8:52 pm Post subject: |
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bob955i wrote:
Looks like fogging to me - the shadows on the building indicate that the sun was high in the sky and to your left (maybe even slightly behind you) so either you do need to renew the light seals on your Spottie, the film can lips didn't seal properly once the film was wound back inside or the lab screwed up. |
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Orio
Joined: 24 Feb 2007
Posts: 29545
Location: West Emilia
Expire: 2012-12-04
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| Posted: Fri Sep 14, 2007 9:05 pm Post subject: |
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Orio wrote:
I vote for "lab screwed up".
I was thinking about something, Peter. You're very unlucky with flare problems. They seem to really have taken you as a target! (I remember the problem with your Jupiter.21M)
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peterqd
Joined: 28 Feb 2007
Posts: 7448
Location: near High Wycombe, UK
Expire: 2014-01-04
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| Posted: Fri Sep 14, 2007 9:29 pm Post subject: |
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peterqd wrote:
Thanks Bob. I thought it was probably fogging but I don't understand why it is such a rich blue colour. As for the film canister leak, out of habit I always leave 1-2cm of full width film outside, so I don't think that's it.
The affected negs are Nos. 4, 17 and 23, - i.e. dotted around the length of the film. It's beginning to point to the camera as I suspected.
Is there a reason why the fogging is blue? |
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bob955i
Joined: 15 Apr 2007
Posts: 2495
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| Posted: Fri Sep 14, 2007 9:36 pm Post subject: |
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bob955i wrote:
If you suspect the camera light seals, then if the film has been in the camera for a little while, any light leaks would simulate a long exposure and so the blue colour could be down to reciprocity failure - the colour shift you get with films when subjected to exposures of several minutes.
http://photonotes.org/cgi-bin/entry.pl?id=Reciprocityfailure
Fourth paragraph down. |
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peterqd
Joined: 28 Feb 2007
Posts: 7448
Location: near High Wycombe, UK
Expire: 2014-01-04
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| Posted: Fri Sep 14, 2007 9:52 pm Post subject: |
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peterqd wrote:
| Orio wrote: |
I vote for "lab screwed up".
I was thinking about something, Peter. You're very unlucky with flare problems. They seem to really have taken you as a target! (I remember the problem with your Jupiter.21M) |
Haha! I'm beginning to use flare creatively! This is my son and his g/f in Australia I took with his camera. I quite like this effect.
I have to admit, though, that I hardly ever think about flare when I'm using a cam, so you could say I'm careless I suppose. I did fit a hood on the Mir-1 for those B&W shots recently and ended up with vignetting!!!  But I'm pleased to say the test shots with the Mir on this roll have turned out fine!! 
There definitely is a problem with the J-21, though. I can't use it and I can't open it to repair it, so it sits at the back of my shelf as I don't have the heart to trash it. I now have a zebra Flek 4/20 with the same problem. The glass looks lovely, too! If you ever need any spare parts give me a call.  |
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Katastrofo
Joined: 26 Feb 2007
Posts: 10405
Location: USA
Expire: 2013-11-19
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| Posted: Fri Sep 14, 2007 9:55 pm Post subject: |
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Katastrofo wrote:
Peter, you need to include the first [img]...incomplete link. Woops, it
opened. |
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peterqd
Joined: 28 Feb 2007
Posts: 7448
Location: near High Wycombe, UK
Expire: 2014-01-04
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| Posted: Fri Sep 14, 2007 10:04 pm Post subject: |
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peterqd wrote:
| Katastrofo wrote: |
Peter, you need to include the first [img]...incomplete link. Woops, it
opened. |
Thanks Bill. I somehow had a couple of stray spaces after the first [img] |
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