Saturday, 11 January 2014

Paper flashing, Pre-flash examples.

I had not envisaged writing a second post on this subject so soon, but I thought I should have included some more examples with the first post.


All the pictures that appear here have been printed on Kentmere VC RC at grade 0, developed in Ilford Multigrade and pre-flashed at one second increments with the enlarger light box at nearly full height and the lens shut down to F16.

Straight Grade Zero print

This picture is a straight grade zero print. When I took this picture I knew it would be a difficult scene to print.

Pre-flashed for one second

This picture has had a one second pre-flash the difference is quite subtle but you can just make out an increase in tone.

Two second flash

This picture has had a two second pre-flash and looks a bit washed out. The tonal range has increased in comparison to the last picture now making it necessary to add the grade five exposure to bring out the contrast and blacks.

Pre-flash test strip:

Exposure curve and Kentmere test strip
in second intervals

I have combined the pre-flash test strip for the Kentmere paper with the exposure curve to show how the test relates to the curve. Intervals 1 to 4 relate to the numbers on the curve.

Example two:

Grade zero print

This is also a grade zero print, when I took these shots I did not think the negatives would require pre-flashing.

Flashed for one second

This picture has had a one second pre-flash. If you compare the two carefully you can make out the subtle change in the sky which appears darker and the  additional tonal range in the details in the shadows.