[pure-silver] Re: Ilford Multigrade

Breukel, C. (HKG) wrote:

Hi,

I have been printing on a condesor enlarger with the same set of
Multigrade filters for more than 10 years. Recently I came across a note
that these filters can deteriorate under al these exposures (I use a 150
watt photacresenta bulb). Not sure if that is a real problem, as long as
you get the results you want.


It should not be a problem. If you can't reach extreme contrast grades (-1 or 5+), filters may be stacked
to give more Y or M density. EKC has sold a 6x6" two filter set which are ideal for split printing (G -1 and
G 5+).

Anyway I came across an ad for a Ilford Multigrade set sp606, size 30*30
cm (for my Laborator L1200 I need 10*10 cm sheets), acetate sheets,
brand new.

The odd thing (for me) that according to the seller the set consists of 

Yellow:  no: 0 t/m 1 1/2 (steps: 1/2).

Magenta No : 0 t/m 5 (steps: 1/2).

And a UV filter

I never heard of such a set, is this usefull for multigrade printing,
or..?

First, you probably need 15.2 cm (6x6") filters for the L1200. I assume it's a typo.

I'd speculate that the set is for an 8x10 (30x30) cold light enlarger (requires UV filtration) and extra
yellow for low contrast. Unlike Kodak filters which are yellow in the low contrast range, and magenta
in the high range, Ilford has added magenta to the low contrast filters as well. That might account for
the "magenta" filters starting at G 0. With traditional cold light heads, the extra blue output results in
severe compression of lower grades. The usual remedy is to add a 30 CP yellow filter to the head
to correct color balance. Perhaps Ilford used a set of yellow filters for that range (alone or in conjunction
with the magenta pack)? Someone with a 10x10" cold light head may want to try them.

Anyway, that's just speculation. If you contact Ilford for further information, please post the reply.

Take care, and the best to you and your family.

Mike
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