[alt-photo] Re: further cyanotype observations

[Loris Medici]

Thanks for sharing Christina! Very interesting...

1. Did you expose bone dry paper or timed the drying time? (If the
latter, different papers will hold different amnt. of moisture,
therefore their speed will vary considerably even if all the
environmental / workflow parameters were kept constant...)
2. Which one was the best in the tonality department? (Masa looks like
the nicest here...)
3. Which one was had the best in dmax? (BFK looks like being the
nicest here - but only so if they were scanned all together; scanning
exposure may vary considerably between the scans...)

Peter's suggestion about the chemical properties (alkalinity /
acidity) of the paper are spot on BTW, that's another very important
aspect about the speed of the paper...

Thanks again & regards,
Loris.


26 Şubat 2012 17:33 tarihinde Christina Anderson <zphoto at montana.net> yazdı:
> Dear All,
>
> I have posted a visual at the URL below which shows the different paper "speeds" with traditional cyanotype.
> ...