[Alt-photo] masking edges

johnbrewerphotography at gmail.com johnbrewerphotography at gmail.com
Tue Jun 13 16:34:11 UTC 2017

Hi Bob

I use blue painters tape similar to this


Sent from my iPhone

> On 13 Jun 2017, at 6:25 pm, Bob Cornelis via Alt-photo-process-list <alt-photo-process-list at lists.altphotolist.org> wrote:
> I'm interested in recommendations for the best way to mask edges to get a
> clean, straight line. I'm mainly doing pt/pd and cyanotype.
> I'd prefer to not just extend the edge of the neg with black as sometimes
> it's hard to get perfect clearing, especially with cyanotype. I know that
> various tapes have come and gone over time so wondered if anyone has a good
> source for a tape that doesn't mar papers (Platine and HPR) and doesn't
> "leak" under the edge.
> Haven't tried rubylith but it seems expensive, sort of a pain to use and
> not sure if it would have the same problem with clearing highlights.
> Thanks!
> Bob
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