Multigrade filters and heat

I'm thinking about replacing my 75Watt bulb with a 150W in my Omega DII
enlarger. My DII has been fitted with a filter drawer right below the
light source but above the condensers.

Any issues with Ilford Multigrade filters and heat?

I have a heat-absorbing glass, but it goes right on top of the condensers,
hence it won't offer any protection to the filters.

"Mike" wrote in message
news
I'm thinking about replacing my 75Watt bulb with a 150W in
my Omega DII
enlarger. My DII has been fitted with a filter drawer
right below the
light source but above the condensers.

Any issues with Ilford Multigrade filters and heat?

I have a heat-absorbing glass, but it goes right on top of
the condensers,
hence it won't offer any protection to the filters.

I occasionally use a 212 bulb in my D2v. I think there is
a little more space between the lamp and the filter than in
the DII. I have not had problems using either Ilford or
Kodak filters with the larger lamp. I have found more
trouble with negatives buckling unless I use heat absorbing
glass or a glass sandwich holder.


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Richard Knoppow
Los Angeles, CA, USA