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ForenSeil
Joined: 15 Apr 2011
Posts: 2726
Location: Kiel, Germany.
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 Posted: Thu Nov 24, 2011 9:02 pm Post subject: Blue spots on old slide film? |
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ForenSeil wrote:
I digitalizied some (800) slides of my father as an birthday present for him.
Most results are good but on many slide there are blue stains.
They are especially good visible on underexposed images while they are hard to find in correctly exposed pics.
For example:
No blue stains
Blue stains
(I guess all are from the same film roll)
But it's also visible on film which is I guess ~5 years younger (and now 26 years old as my mom is pregnant with my older sister in these pics  :
And here again same film, same lab, but with a blue stains
What's the reason for this? Looks like an error in the lab for me. Or is this due bad storing conditions?
And on some other slides there is also a ghost image which looks like double exposure or something. But all these picture were taken with a Konica Autoreflex T and I don't see a possibility to make a double exposure with that cam.
May this be a problem of wrong fixing process etc.?
_________________
I'm not a collector, I'm a tester 
My camera: Sony A7+Zeiss Sonnar 55/1.8
Current favourite lenses (I have many more):
A few macro-Tominons, Samyang 12/2.8, Noritsu 50.7/9.5, Rodagon 105/5.6 on bellows, Samyang 135/2, Nikon ED 180/2.8, Leitz Elmar-R 250/4, Celestron C8 2000mm F10
Most wanted: Samyang 24/1.4, Samyang 35/1.4, Nikon 200/2 ED
My Blog: http://picturechemistry.own-blog.com/
(German language) |
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mmelvis
Joined: 24 May 2010
Posts: 1326
Location: Florida,USA
Expire: 2015-05-09
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| Posted: Fri Nov 25, 2011 12:28 am Post subject: |
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mmelvis wrote:
Is it possible the camera or the slide projector is creating the problem? |
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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 Nov 25, 2011 12:41 am Post subject: Re: Blue spots on old slide film? |
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peterqd wrote:
| ForenSeil wrote: |
And on some other slides there is also a ghost image which looks like double exposure or something. But all these picture were taken with a Konica Autoreflex T and I don't see a possibility to make a double exposure with that cam.
May this be a problem of wrong fixing process etc.? |
Is this double image definitely on the slide and nothing to do with your digitisation process?
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Orio
Joined: 24 Feb 2007
Posts: 29545
Location: West Emilia
Expire: 2012-12-04
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| Posted: Sat Nov 26, 2011 10:13 am Post subject: |
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Orio wrote:
Stains can be due to improper washing, or not sufficient agitation of fixer.
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Orio, Administrator
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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: Sat Nov 26, 2011 10:23 am Post subject: |
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peterqd wrote:
| Orio wrote: |
| Stains can be due to improper washing, or not sufficient agitation of fixer. |
But would that account for the obviously different image in this shot? It might if the coils of film in the tank were in contact. I wonder if there's another frame on the roll with the superimposed image.
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ForenSeil
Joined: 15 Apr 2011
Posts: 2726
Location: Kiel, Germany.
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| Posted: Sun Nov 27, 2011 6:55 pm Post subject: Re: Blue spots on old slide film? |
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ForenSeil wrote:
| peterqd wrote: |
| ForenSeil wrote: |
And on some other slides there is also a ghost image which looks like double exposure or something. But all these picture were taken with a Konica Autoreflex T and I don't see a possibility to make a double exposure with that cam.
May this be a problem of wrong fixing process etc.? |
Is this double image definitely on the slide and nothing to do with your digitisation process? |
Yes I'm sure. It's reproducable with the same slides.
_________________
I'm not a collector, I'm a tester
My camera: Sony A7+Zeiss Sonnar 55/1.8
Current favourite lenses (I have many more):
A few macro-Tominons, Samyang 12/2.8, Noritsu 50.7/9.5, Rodagon 105/5.6 on bellows, Samyang 135/2, Nikon ED 180/2.8, Leitz Elmar-R 250/4, Celestron C8 2000mm F10
Most wanted: Samyang 24/1.4, Samyang 35/1.4, Nikon 200/2 ED
My Blog: http://picturechemistry.own-blog.com/
(German language) |
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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: Sun Nov 27, 2011 8:08 pm Post subject: |
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peterqd wrote:
OK. Is there another frame on that film roll from which the ghost image might have come? I'm trying to establish whether there is any chance of cross-frame staining due to contact during the development process. Or is it a completely unrelated image from who knows where? That would point to some kind of double exposure or focussed light leak.
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ForenSeil
Joined: 15 Apr 2011
Posts: 2726
Location: Kiel, Germany.
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| Posted: Sun Dec 04, 2011 1:45 am Post subject: |
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ForenSeil wrote:
| peterqd wrote: |
| OK. Is there another frame on that film roll from which the ghost image might have come? I'm trying to establish whether there is any chance of cross-frame staining due to contact during the development process. Or is it a completely unrelated image from who knows where? That would point to some kind of double exposure or focussed light leak. |
I have the solution of the mistery. The photo was shot through the window of a train 
_________________
I'm not a collector, I'm a tester
My camera: Sony A7+Zeiss Sonnar 55/1.8
Current favourite lenses (I have many more):
A few macro-Tominons, Samyang 12/2.8, Noritsu 50.7/9.5, Rodagon 105/5.6 on bellows, Samyang 135/2, Nikon ED 180/2.8, Leitz Elmar-R 250/4, Celestron C8 2000mm F10
Most wanted: Samyang 24/1.4, Samyang 35/1.4, Nikon 200/2 ED
My Blog: http://picturechemistry.own-blog.com/
(German language) |
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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: Sun Dec 04, 2011 10:15 am Post subject: |
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peterqd wrote:
| ForenSeil wrote: |
| peterqd wrote: |
| OK. Is there another frame on that film roll from which the ghost image might have come? I'm trying to establish whether there is any chance of cross-frame staining due to contact during the development process. Or is it a completely unrelated image from who knows where? That would point to some kind of double exposure or focussed light leak. |
I have the solution of the mistery. The photo was shot through the window of a train
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Doh! 
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