From: Manuel (punctumgt@netc.pt)
Date: 05/04/01-01:50:20 PM Z
Cor,
Thank you very much for reply and all the useful information you provided.
How do you print your Pyro Negatives ? Platinum/Palladium ?
If yes, were do you acquire the chemicals ? Here in Europe or US ?
I've ordered mine (Ferric oxalate,Potassium chloroplatinite and paladium
chloride) from Bostick&Sullivan which have excellent quality products and
service but the customs taxes we have to pay for this kind of items is
prohibitive ! As we are both EU members the taxes should more or less the
same!
Thanks again. :-)
Regards from Portugal
Manuel
Punctum Studios Ltd
Portugal
> From: Cor Breukel <cor@lumc.nl>
> Reply-To: alt-photo-process-l@sask.usask.ca
> Date: Wed, 02 May 2001 12:47:56 +0200
> To: alt-photo-process-l@sask.usask.ca
> Subject: Re: Rollo-Pyro dilution matters and others
>
> Manuel,
>
> Carl already answered some of your questions, let me add on:
>
> Manuel wrote:
>
>>
>> 3-Again in the same bottle from Lotus View Camera is written :
>>
>> "Mix 2 parts A+8 parts B+ 100 parts water"
>>
>> If this is " Rollo-Pyro , formula according to Harald Leban " why is
>> this indicated dilution different?
>>
>
> ...Manual, I think that this part B is half the concentration of the
> sodiummetaborate, it can be a problem to solute all the SMB for the
> stock as Hutchings describes. If you mix half the amount you do not have
> problems with precipitating SMB, but you should use twice as much
> ofcourse..
>
>
>> 4-Usually, I use as standard temperature for Lotus View Camera
>> "Rollo-Pyro" , 24° Celsius with JOBO CPP-2, because in the summer is
>> difficult here in Portugal to keep the water temperature lower than
>> this value.
>>
>
>
> ..I paste a table below, but this one is for PMK, not for ABC+, not sure
> if it will make a big difference..
>
> Chart of Temperature - Time Corrections for PMK Pyro Developer
>
> Pyro requires a correction of 4% of the listed times for each
> degree F over or below 70F. The table below simplifies
> calculations. For long times, 1/2 that time can be used to
> find a value which is doubled.
>
> Time @ 70F | 7 7:30 8 9 10 11 12 13
> 14 15
>
----------------------------------------------------------------------------
--> -
> C F | Time Corrected For Temperature (min:sec)
>
----------------------------------------------------------------------------
--> -
> 17.0 62.6 | 9:04 9:43 10:22 11:39 12:57 14:15 15:33 16:50
> 18:08 19:26
> 17.2 63.0 | 8:58 9:36 10:15 11:32 12:48 14:05 15:22 16:39
> 17:56 19:13
> 17.4 63.3 | 8:52 9:30 10:08 11:24 12:40 13:56 15:12 16:28
> 17:44 18:60
> 17.6 63.7 | 8:46 9:23 10:01 11:16 12:31 13:46 15:01 16:17
> 17:32 18:47
> 17.8 64.0 | 8:40 9:17 9:54 11:08 12:23 13:37 14:51 16:05
> 17:20 18:34
> |
> 18.0 64.4 | 8:34 9:10 9:47 11:01 12:14 13:27 14:41 15:54
> 17:07 18:21
> 18.2 64.8 | 8:28 9:04 9:40 10:53 12:05 13:18 14:30 15:43
> 16:55 18:08
> 18.4 65.1 | 8:22 8:57 9:33 10:45 11:57 13:08 14:20 15:32
> 16:43 17:55
> 18.6 65.5 | 8:16 8:51 9:26 10:37 11:48 12:59 14:10 15:20
> 16:31 17:42
> 18.8 65.8 | 8:10 8:45 9:19 10:29 11:39 12:49 13:59 15:09
> 16:19 17:29
> |
> 19.0 66.2 | 8:04 8:38 9:13 10:22 11:31 12:40 13:49 14:58
> 16:07 17:16
> 19.2 66.6 | 7:57 8:32 9:06 10:14 11:22 12:30 13:38 14:47
> 15:55 17:03
> 19.4 66.9 | 7:51 8:25 8:59 10:06 11:13 12:21 13:28 14:35
> 15:43 16:50
> 19.6 67.3 | 7:45 8:19 8:52 9:58 11:05 12:11 13:18 14:24
> 15:31 16:37
> 19.8 67.6 | 7:39 8:12 8:45 9:51 10:56 12:02 13:07 14:13
> 15:19 16:24
> |
> 20.0 68.0 | 7:33 8:06 8:38 9:43 10:48 11:52 12:57 14:02
> 15:07 16:11
> 20.2 68.4 | 7:27 7:59 8:31 9:35 10:39 11:43 12:47 13:51
> 14:54 15:58
> 20.4 68.7 | 7:21 7:53 8:24 9:27 10:30 11:33 12:36 13:39
> 14:42 15:45
> 20.6 69.1 | 7:15 7:46 8:17 9:19 10:22 11:24 12:26 13:28
> 14:30 15:32
> 20.8 69.4 | 7:09 7:40 8:10 9:12 10:13 11:14 12:16 13:17
> 14:18 15:19
> |
> 21.0 69.8 | 7:03 7:33 8:03 9:04 10:04 11:05 12:05 13:06
> 14:06 15:06
>
-----------|----------------------------------------------------------------
--> -
> 21.1 70.0 | 7:00 7:30 8:00 9:00 10:00 11:00 12:00 13:00
> 14:00 15:00
>
-----------|----------------------------------------------------------------
--> -
> 21.2 70.2 | 6:57 7:27 7:57 8:56 9:56 10:55 11:55 12:54
> 13:54 14:54
> 21.4 70.5 | 6:51 7:20 7:50 8:48 9:47 10:46 11:44 12:43
> 13:42 14:41
> 21.6 70.9 | 6:45 7:14 7:43 8:41 9:38 10:36 11:34 12:32
> 13:30 14:28
> 21.8 71.2 | 6:39 7:07 7:36 8:33 9:30 10:27 11:24 12:21
> 13:18 14:15
> |
> 22.0 71.6 | 6:33 7:01 7:29 8:25 9:21 10:17 11:13 12:09
> 13:06 14:02
> 22.2 72.0 | 6:27 6:54 7:22 8:17 9:12 10:08 11:03 11:58
> 12:53 13:49
> 22.4 72.3 | 6:21 6:48 7:15 8:09 9:04 9:58 10:53 11:47
> 12:41 13:36
> 22.6 72.7 | 6:15 6:41 7:08 8:02 8:55 9:49 10:42 11:36
> 12:29 13:23
> 22.8 73.0 | 6:09 6:35 7:01 7:54 8:47 9:39 10:32 11:25
> 12:17 13:10
> |
> 23.0 73.4 | 6:03 6:28 6:54 7:46 8:38 9:30 10:22 11:13
> 12:05 12:57
> 23.2 73.8 | 5:56 6:22 6:47 7:38 8:29 9:20 10:11 11:02
> 11:53 12:44
> 23.4 74.1 | 5:50 6:15 6:41 7:31 8:21 9:11 10:01 10:51
> 11:41 12:31
> 23.6 74.5 | 5:44 6:09 6:34 7:23 8:12 9:01 9:50 10:40
> 11:29 12:18
> 23.8 74.8 | 5:38 6:03 6:27 7:15 8:03 8:52 9:40 10:28
> 11:17 12:05
> |
> 24.0 75.2 | 5:32 5:56 6:20 7:07 7:55 8:42 9:30 10:17
> 11:05 11:52
> 24.2 75.6 | 5:26 5:50 6:13 6:59 7:46 8:33 9:19 10:06
> 10:53 11:39
> 24.4 75.9 | 5:20 5:43 6:06 6:52 7:37 8:23 9:09 9:55
> 10:40 11:26
> 24.6 76.3 | 5:14 5:37 5:59 6:44 7:29 8:14 8:59 9:43
> 10:28 11:13
> 24.8 76.6 | 5:08 5:30 5:52 6:36 7:20 8:04 8:48 9:32
> 10:16 11:00
>
>
> ...Good Luck!
>
> Cor
>
> (who also works pretty much on its own in Holland..;-)..)
>
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