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Orio
Joined: 24 Feb 2007
Posts: 29545
Location: West Emilia
Expire: 2012-12-04
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 Posted: Sun Nov 22, 2009 6:37 pm Post subject: Second developed roll: partial failure |
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Orio wrote:
The 6x6 was loaded correctly. But I had two problems:
1: Several blotches to ruin the photos. Yes I did tap strongly after every inversion. Could it have been perhaps the prewash? 4-5 blotches on the photos, and several more along the edges where the film edges touch the reel. Perhaps I have to reel in the film more?
2: The film has wrinkles like if it was squeezed. I tend to blame this on my idea of placing a second empty reel on top of the loaded one. I thought that without it, the loaded reel might slip out of the pole during inversions. I had to press quite a bit to fit the second reel inside on top of the expanded one that held the 120 film. Perhaps this pressure caused the wrinkles. Any idea if it's possible to put only one reel in the tank without risk?
Contrast with Rodinal and Agfapan seems lower than with Tmax film and developer. I'll have to print to see the real story though.
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CarbonR
Joined: 31 Dec 2008
Posts: 1969
Location: Clermont-Ferrand, France
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| Posted: Sun Nov 22, 2009 6:56 pm Post subject: |
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CarbonR wrote:
For #2 : I think it comes from the differences of temperature between the different baths, did you controlled it (or at lest, tried to have a constant temperature) ?
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ludoo
Joined: 18 Sep 2009
Posts: 1397
Location: Milan, Italy
Expire: 2011-12-05
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| Posted: Sun Nov 22, 2009 6:59 pm Post subject: |
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ludoo wrote:
How did you wash the film, and what kind of water/wetting agent did you use for the last wash? |
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Orio
Joined: 24 Feb 2007
Posts: 29545
Location: West Emilia
Expire: 2012-12-04
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| Posted: Sun Nov 22, 2009 9:07 pm Post subject: |
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Orio wrote:
| CarbonR wrote: |
| For #2 : I think it comes from the differences of temperature between the different baths, did you controlled it (or at lest, tried to have a constant temperature) ? |
The baths were all made from the same water, which was around 20° C
Perhaps the rinsing water was different, because it's difficult to get constant temperature out of the tubes. Maybe next time I will have to prepare in advance the rinsing water also.
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Orio
Joined: 24 Feb 2007
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Location: West Emilia
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| Posted: Sun Nov 22, 2009 9:09 pm Post subject: |
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Orio wrote:
| ludoo wrote: |
| How did you wash the film, and what kind of water/wetting agent did you use for the last wash? |
directly from the tube, and the last wash was made instead with demineralized water with a little Tetenal wetting agent
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scsambrook
Joined: 29 Mar 2009
Posts: 2167
Location: Glasgow Scotland
Expire: 2011-11-18
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| Posted: Sun Nov 22, 2009 9:48 pm Post subject: Re: Second developed roll: partial failure |
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scsambrook wrote:
| Orio wrote: |
The 6x6 was loaded correctly. But I had two problems:
1: Several blotches to ruin the photos. Yes I did tap strongly after every inversion. Could it have been perhaps the prewash? 4-5 blotches on the photos, and several more along the edges where the film edges touch the reel. Perhaps I have to reel in the film more?
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Orio - what were the blotches like? Undeveloped, or underdeveloped emulsion, or some other kind of mark? You mention the film was wrinkled - could the blotches have been where the film base was contacting the emulsion through distortion in the spiral? That might have kept the developer from accessing the emulsion, partly at least. Sometimes if the emulsion grips tightly in the spiral you can get a similar problem, especially if the film has managed to become corrugated in the loading.
What sort of tank and spiral do you use?
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Equipment: Pentax DSLR for casual shooting, Lumix G1 and Fuji XE-1 for playing with old lenses, and Leica M8 because I still like the optical rangefinder system. |
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Orio
Joined: 24 Feb 2007
Posts: 29545
Location: West Emilia
Expire: 2012-12-04
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| Posted: Sun Nov 22, 2009 10:14 pm Post subject: |
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Orio wrote:
blotches look black in the centre with a halo
I used Kaiser tank and spiral.
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Orio
Joined: 24 Feb 2007
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Location: West Emilia
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| Posted: Sun Nov 22, 2009 11:02 pm Post subject: |
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Orio wrote:
This is how one of the blotches looks like:
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marty
Joined: 09 Apr 2009
Posts: 767
Location: Italy
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| Posted: Mon Nov 23, 2009 1:24 am Post subject: |
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marty wrote:
Nothing comes to my mind about the blotches right now. For what is concerning to put a 2nd reel on top of the first this is correct and must be done with 35mm when doing only one roll (for the reason you rightly thought). With the reel expanded to 120 size there is not enough room to do that (at least with my tank) but no reason either since the volume of chemicals is enough to ensure proper coverage even if the single reel should slip (this is not true with 135). So it's possible the film may have been somewhat squeezed.
Cheers, Marty.
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F16SUNSHINE
Joined: 20 Aug 2007
Posts: 5486
Location: Left Coast
Expire: 2011-11-18
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| Posted: Mon Nov 23, 2009 5:06 am Post subject: |
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F16SUNSHINE wrote:
Hi Orio
I think you will have great success. The tones are lovely.
The blotches to me look like the roll was pinched and making contact with itself as it spiraled around. The blotch areas did not get enough developer.
I've seen the same in my rolls from time to time when use stainless spools and get a poor wind on in the darkroom.
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Orio
Joined: 24 Feb 2007
Posts: 29545
Location: West Emilia
Expire: 2012-12-04
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| Posted: Mon Nov 23, 2009 9:03 am Post subject: |
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Orio wrote:
Andy, I think you may be right.
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Orio, Administrator
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Laurence
Joined: 26 Mar 2007
Posts: 4809
Location: Western Washington State
Expire: 2016-06-19
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| Posted: Mon Nov 23, 2009 8:51 pm Post subject: |
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Laurence wrote:
Notwithstanding the blotch on your sample image - it's a BEAUTY! The tonalities are breathtaking.
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PaulC
Joined: 23 Dec 2008
Posts: 2318
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| Posted: Tue Nov 24, 2009 8:35 am Post subject: |
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PaulC wrote:
The Patterson tank I used (long ago) had a plastic clip that slid down to keep the spiral in place, there was no need to put another spiral on top.
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