[alt-photo] Re: Ziatype questions (update)

[jacques verschuren]

Marek,

Could this procedure (humidifying in a dry tray covered with a wet  
towel) also be applied to/for humidifying your paper before exposure?  
Any experience?

Jacques

>
> Jalo,
> I never liked steaming the paper (means lterally hot steam). Placing  
> the exposed print at the bottom of deep tray (clean and dry)and  
> covering the tray with wet towell provided good humidification. Just  
> make sure that the towel is not dripping wet as a drop of water  
> would ruin the print.
> Time and temperature of himidification are likely to be related, at  
> my conditions I would leave the exposed print for about 30 minutes.  
> You can take a peak and see how highlights appear as the  
> humidification progresses.
> I also noticed that you are using dilute citric acid developer,  
> while I aways used plain water. I am not sure if it makes any  
> difference and what the "common" practive would be.
> I am impressed with the number of test strips that you printed.
> Marek
>
>> From: vedos at samk.fi
>> To: alt-photo-process-list at lists.altphotolist.org
>> Date: Tue, 17 Aug 2010 09:21:43 +0300
>> Subject: [alt-photo] Re: Ziatype questions (update)
>>
>> Thanks Dick, a good thing to bear in mind!
>> I'm gradually gaining some success and confidence in the  
>> process... :)
>>
>> -Jalo
>>
>>
>> ________________________________________
>> From: alt-photo-process-list-bounces at lists.altphotolist.org [alt-photo-process-list-bounces at lists.altphotolist.org 
>> ] On Behalf Of Richard Sullivan [richsul at earthlink.net]
>> Sent: Tuesday, August 17, 2010 2:41 AM
>> To: 'The alternative photographic processes mailing list'
>> Subject: [alt-photo] Re: Ziatype questions (update)
>>
>> Jalo,
>>
>> You mention curves. Be aware that it is a printing out process and  
>> does not
>> behave at all like developing out processes when it comes to  
>> sensitometry
>> and step wedges. The image builds from the blacks up so an  
>> underexposed
>> print make only have the lower zone blacks and no mid tones or  
>> highs which
>> may be shown, though very pale in a DOP process. It will look like  
>> a very
>> overly contrasty print. Early POP papers came in only one contrast  
>> grade and
>> to some extent contrast could be controlled by exposure.
>>
>> --Dick
>>
>> -----Original Message-----
>> From: alt-photo-process-list-bounces at lists.altphotolist.org
>> [mailto:alt-photo-process-list-bounces at lists.altphotolist.org] On  
>> Behalf Of
>> Vedos
>> Sent: Monday, August 16, 2010 4:44 PM
>> To: The alternative photographic processes mailing list
>> Subject: [alt-photo] Re: Ziatype questions (update)
>>
>> Hi all,
>>
>> Many thanks to Loris, Marek and all who advised me on the  
>> ziatype... here's
>> a little update.
>>
>> I had certain issues with papers and chemistry - they largely  
>> turned out to
>> be due to my inexperience in ziatype. I've been printing dozens of  
>> small
>> step tablet tests now, and gradually learned how humidity in the  
>> paper
>> should look and feel (don't need the acetate mylars any more). I also
>> learned "steam development" for papers that were exposed too dry. I  
>> mix
>> "creatively" the zia's different ingredients and am building curves  
>> for the
>> different emulsion mixes. But I still have a feeling about  
>> something being
>> wrong with my chemistry; I have some strange looking correction  
>> curves for
>> negatives...
>>
>> Anyway, on my blog you can see what I been doing lately. It may be  
>> boring
>> stuff though... all that playing with gray charts and such... ;)
>>
>> - Jalo
>>
>>
>> -- If you only look at what is, you might never attain what could  
>> be --
>>
>> V E D O S
>> Alternative Photographic Processes
>> Satakunta University of Applied Sciences
>> vedos at samk.fi
>> http://vedos.samk.fi
>> http://www.samk.fi
>> _______________________________________________
>> Alt-photo-process-list | http://altphotolist.org/listinfo
>>
>>
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