strange contrast for G5

[kal800]

Hi,

Have callibrared that paper for RH's Analyser Pro. Here are the contrast values I got after exposing Kodak step wedge using Durst VC head:

0 - 180
1 - 165
2 - 150
3 - 121
4 - 105
5 - 30

Contrast for G5 seems really awkward, to be sure I repeated the test second time and got the same results. Also I've done callibration for Ilford MGIV and also G4 and G5 values have dropped signficantly compared to softer settings. Is it something wrong with my VC head?

 

[Rich Ullsmith]

Not sure exactly what you are doing or what those numbers mean, but in multigrade filtration grade 4 on up require a full stop more exposure to achieve the same density. I don't know if this applies to the filtration on your durst head.