U of S | Mailing List Archive | alt-photo-process-l | RE: Tricolor gum, order of layers

RE: Tricolor gum, order of layers



Thanks Loris

J 

-----Original Message-----
From: Loris Medici [mailto:mail@loris.medici.name] 
Sent: 03 October 2008 09:58
To: alt-photo-process-l@usask.ca
Subject: RE: Tricolor gum, order of layers

HP sells a paper called translucent inkjet bond. Mine is from
freedompaper.com. It's a 18lb smooth paper which looks like a bolder
drafting/tracing paper (it has some size I presume since it's marketed as
inkjet media).

Hope this helps,
Loris.


3 Ekim 2008, Cuma, 11:05 am tarihinde, john@johnbrewerphotography.com
yazmış:
> Hi Loris
>
> Could you describe the paper you use for negatives a little more? You 
> say it is quite translucent, Is it like draughting film (paper) or 
> velum ? Who is the manufacturer? Pictorico here in the UK is expensive 
> too.
>
> Regards
>
> John.
>
> -----Original Message-----
> From: Loris Medici [mailto:mail@loris.medici.name]
> Sent: 02 October 2008 23:26
> To: alt-photo-process-l@usask.ca
> Subject: Re: Tricolor gum, order of layers
>
> Yes, composite grayscale is exactly grayscale including color inks. 
> With my printer that means: back + light gray + some (very little I 
> presume) color ink...
>
> Probably oiling would mask some of the paper texture... I noticed that 
> the paper you mention is a special photo paper. If I'm not mistaking, 
> the printers lay much more ink and use a much denser dithering 
> algorithm with those "photo" papers. Instead, I use a special type of 
> plain paper (which is quite translucent - and less textured / but 
> there's still some texture
> - compared to ordinary plain paper) and I print using the plain paper 
> profile provided in the printer driver (which lays much less ink and 
> uses a more visible / relaxed dithering pattern), and I think that's 
> the main difference leading to my pointillistic result which you 
> haven't observed.
>
> Hope this helps,
> Loris.
>
>
> 1 Ekim 2008, Çarşamba, 12:13 am tarihinde, Katharine Thayer yazmış:
>> Hi Loris,
>> Aaah, I get it now.  You erased and reprinted the cyan layer.
>> Thanks, and sorry for being so dense.
>>
>> Hmm,  that's very interesting about the pointillism; by "composite 
>> grayscale" you mean greyscale printed with color inks, I assume.
>> That's how I've always printed my paper negatives, and I haven't ever 
>> got that effect, except for the one time I mentioned when I used 
>> pencil to make changes on the paper negative.  I wonder what the 
>> difference is, whether it's oiled or not, or maybe the kind of paper?
>> The paper that's always worked best for me has been Epson Photo 
>> Quality Inkjet Paper, (now called  Presentation Paper Matte -- same 
>> stock number, different name), oiled.  I used to use mineral oil, til 
>> Keith suggested baby oil and I switched over.  Well, it doesn't 
>> matter, I'm just curious ; I like to try to understand things that 
>> aren't immediately obvious to me.
>>
>> You're most welcome, glad to offer what help  I can, although 
>> ultimately it's gum that teaches its requirements and principles to 
>> those who are willing to learn from it; all I can do is point in a 
>> general direction.
>> Katharine
>
>
>
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