RE: Pyrocat-HD for alt printing?

For the 2:1:100 dilution I would subtract about 30% from the
established time for 1:1:100 as a guide. Unfortunately I can be more
precise because most of my tests have been with 1:1:100 or 2:2:100
and I don't have a very large data base for 2:1:100 and 3:2:100 as I
just recently began using them.

Best.

> > -----Original Message-----
>> From: Sandy King [mailto:sanking@clemson.edu]
>> Sent: woensdag 17 augustus 2005 23:48
>> To: alt-photo-process-l@sask.usask.ca
>> Subject: Re: Pyrocat-HD for alt printing?
>>
>>
>>
>> I also now recommend a 2:1:100 or 3:2:100 dilution for rotary
>> processing in Jobo. It definitely results in lower B+F with films
>> such as HP5+, TMAX-400 and JandC Classic 200 and 400.
>>
>> Thanks a lot to Clay (and Michael Mutmansky also I believe) for their
>> experimentation with this, and for suggesting it to me.
>>
>> Sandy
>>
>>
>Sandy,
>
>How would you "translate" processing times with the 1:1:100
>dilutions to 2:1:100 times? Just to get a starting point: I process
>HP5+ (at 250 ASA), 8*10 in a Jobo (CPE2 in a print drum) at the
>slowest rotation at 22 deg C for 14 minutes. I get, what I consider,
>acceptable B+F, but the lower the better I guess..
>
>Thanks,
>
>Best,
>
>Cor
Received on Thu Aug 18 08:16:09 2005