[pure-silver] Re: Exploring Rollei RPX 100
- From: Tim Daneliuk <tundra@xxxxxxxxxxxxxx>
- To: pure-silver@xxxxxxxxxxxxx
- Date: Tue, 24 Oct 2017 17:31:55 -0500
On 10/23/2017 12:26 AM, `Richard Knoppow wrote:
We are talking about three different things:
One, sensitizing dye.
Two, anti halation dye
Three, anti light piping _pigment_ contained in the support itself.
So ... I took one strip of 2 6x9 negs and ran it through PermaWash for a
few minutes and the rewashed for another 10-15 minutes.
No change as near as I can tell (at least in the wet neg - I'll look again
when dry). It has a slight purple/violet cast. Based on Richard's comments,
this would suggest an anti-light piping dye in the substrate... which isn't
supposed to be used on anything but 35mm film.
Assuming this is the case an no other explanation is found, I have a theory:
Rollei/Mako may be using the same substrate for both 35mm and 120 film
because it is - in the scheme of things - a relatively low volume product.
At this point, this is more of a curiosity. The negs print beautifully and
render in a manner consistent with a quality 100 ASA rollfilm.
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Tim Daneliuk tundra@xxxxxxxxxxxxxx
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