I exposed a new plate and shortened the wash-out time to just under a minute. The softer brush worked really well. It would be a little small for large plates but was perfect in this particular case.
|New print on left - old version on right.|
It's a little difficult to see here but the shortened wash out time took care of the open biting and the print ended up being much sharper. I decided to use a Solarplate scrap to make a test plate, for a different section of the image, and increase the exposure time to see if I could get a bit more detail.
|Eleven light units for both image & aquatint screen.|
I liked the results so I upped the exposure time again but this time exposed the transparency first and then the aquatint screen second. I gave the transparency 12 light units followed by 10 light units for the aquatint screen.
|Comparison of test plates.|
For this particular section of the image, I liked the clarity I ended up with on the plate with the longer exposure time. There was a better balance in the over all value of the plate and a bit more detain.