CIBACHROME FILTRATION Continued....
My next paper pack gave it’s bias - M00 : C10. I combined this with
the enlarger/film correction filtration as follows:-
Y
N
C
35
:
or :
10
Recommended Filtration on pack.
00
05
45
Enlarger/Film correction Filtration.
35
5 55
Result of Adding.
05
05 05
Subtract 05 right across to remove Neutral Density.
30
00 50
Filtration .used on Print..
Note:-
Three colours in a Filter pack
give a Neutral density of a strength equal to
the colour with the Slowest
value, this. increases exposure without need
to subtract this value right across as shown above. One colour, at
least, must have 00 fiItration I used this Filtration and it gave me
completely acceptable results.
I commonly make 4 of 4
x 5 prints. On taking the 8 x 10 sheet out of the package I stick a
short piece of sellotape on the top right hand corner on the
none-emulsion side of the print. This enables me in the dark to identify
quarters 1/2/3/4. I dust one end with talk as a precaution.
I once sat down for 15 minutes in front of a small tape cassette
recorder and counted seconds from a digital watch. I recorded times of 15
& 60 seconds. I find that this has no complications timing in the
dark.
John J. Wilson Area
26.
Stillorgan. Co. Dublin
(Edited by Arthur MCKee).
Republic of ‘Ireland.