RE: I'll never double coat cyano again -- was what I've learned about cyanotype thru PDN

But Charles, for 16 and 22 mins. exposure times your dmax is better with
double coated test strips!? I suspect it would be the same also for
11mins but there seems to be coating problems with the double coated
11mins. strip (I see many fibers - the paper is abraded - you brush too
hard I presume... and/or you don't wait enough before the second coat).

Regards,
Loris.

> -----Original Message-----
> From: Liam Lawless [mailto:liam.lawless@blueyonder.co.uk]
> Sent: Tuesday, June 07, 2005 1:44 AM
> To: alt-photo-process-l@sask.usask.ca
> Subject: RE: I'll never double coat cyano again -- was what
> I've learned about cyanotype thru PDN
>
>
> I'm not too familiar with cyanotype, but with some processes
> you'll may find that double-coating needs a longer exposure,
> if you didn't do that already.
>
>
>
> Liam
>
> -----Original Message-----
> From: ryberg [mailto:cryberg@comcast.net]
> Sent: 06 June 2005 23:07
> To: alt-photo-process-l@sask.usask.ca
> Subject: I'll never double coat cyano again -- was what I've
> learned about cyanotype thru PDN
>
>
> Several of you have said that double coating increases DMAX.
> I had always believed that. But the tests I showed yesterday
> led me to doubt it. I exposed pairs of Stoufer strips, one
> on single coated cyano, one on double coated. I did six
> exposure times. All of these showed the same or better DMAX
> with single coating. Further, the single coat always showed
> a longer scale. You can see the results on my web page--I
> added these new tests at the end of the earlier cyano note.
> I HOPE that I have optimized the images for the web and
> that it won't take too long for a dial-up, though the final
> image of the 6 pairs is pretty big.
> http://home.comcast.net/~cryberg/index.html
> Thanks, Charles Portland OR
>
>
>
Received on Tue Jun 7 02:42:32 2005