[alt-photo] Re: Another tricolor...

[Judy Seigel]

On Wed, 9 Jun 2010, Paul Viapiano wrote:

cut

> But, like cadmium, potassium and ammonium dichromates are also devastating to 
> the environment regardless of who tells you that they are OK or benign. So 
> that is why none of it, cadmium or dichromate, goes down my drain. All first 
> wash water gets bottled and all brush cleaning water along with it. None of 
> this stuff belongs in a public drain, regardless of who tells you otherwise.

For what it's worth I do recall that in the "old days" when Mike Ware was 
still on the list, he gave some explanation (which I followed then, but 
forget now) for why bichromate underwent some change (into Stage 3 or 
like that) in the exposure/development process that made it more or less 
OK to use...

That should of course be in the archive of the list... if someone has the 
software (and the interest/energy) to find it...

> Don't rely on experts. Experts said offshore underwater drilling was safe, 
> too.

OK, don't *rely* on "experts", but listen to them ... they can't all be 
wrong... Which is to say, there IS info out there !

J.

>
> Thanks, Judy, for this opportunity to get on my semi-annual soapbox.
>
> Paul
>
>
>
> ----- Original Message ----- From: "Judy Seigel" <jseigel at panix.com>
> To: "The alternative photographic processes mailing list" 
> <alt-photo-process-list at lists.altphotolist.org>
> Sent: Wednesday, June 09, 2010 3:54 PM
> Subject: [alt-photo] Re: Another tricolor...
>
>
>> 
>> On Wed, 9 Jun 2010, Marek Matusz wrote:
>> 
>>> 
>>> Paul
>>> 
>>> Cadmium is a very intense and opaque yellow. Did you use it as a first 
>>> layer? What was your registration method.
>>> 
>>> For oil painting you can not substitute it with anything else. I wonder if 
>>> I am missing something by not using it.
>>> 
>>> Marek
>> 
>> I speak here beyond my area of expertise, but re something I've heard so 
>> ioften and on such authority, I feel compelled to mention it...
>> 
>> If that IS real *cadmium,* it's pernicious & evil environmentally, so 
>> (presumably) even in small quantities shouldn't be added to .... free 
>> flowing water.
>> 
>> (This has in the past been replied to as OK, benign, etc. on the list, but 
>> I've continued to hear/read about the horror of cadmium, so mention it 
>> again...)
>> 
>> J.
>> 
>> 
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