For using colorhead enlargers with variable contrast papers.
Most enlarger manufacturers use these filtration values. This table
is intended as a guide to making prints on Ilford MG paper when using
a Dichroic Head Color Enlarger. You may also use them with other brands
of variable contrast paper with good results. Use the Kodak standard for
Beseler, Omega, Devere, LPL, Paterson, and Vivitar enlargers. Remember
you have a lot of control when using a color head because you can dial
in fractions of a contrast grade rather than being limited to 1/2 grade
steps. Also these filter factors are just estimates. The age and condition
of the filters will affect your results.
| Desired
Grade: |
00
|
0
|
1/2
|
1
|
1-1/2
|
2
|
2-1/2
|
3
|
3-1/2
|
4
|
4-1/2
|
5
|
| Durst filter settings
(170M): |
150Y |
90Y |
70Y |
55Y |
30Y |
0 |
20M |
45M |
65M |
100M |
140M |
170M |
| Durst filter settings
(130M:) |
120Y |
70Y |
50Y |
40Y |
25Y |
0 |
10M |
30M |
50M |
75M |
120M |
130M |
| Kodak filters: |
199Y |
90Y |
70Y |
50Y |
30Y |
0 |
5M |
25M |
50M |
80M |
140M |
199M |
| Meopta filter
settings: |
150Y |
90Y |
70Y |
55Y |
30Y |
0 |
20M |
40M |
65M |
85M |
200M |
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