RE: filter for EIR

["Jason Revell (in5)" <jason.revell@xxxxxxxxx>]

Loui,

Their is Very little , if any, difference between the 023 and the 099 B+W
filters.  The only difference is that the 099 is sold for EIR work.  The
idea of the yellow filter is to cut out most of the excess blue that would
normally appear in the shot, the more orange the filter the less blue, hence
peoples different recommendations (I use a Wratten 15 rather than the
suggested 12).

So in short I would say just use the 023 and try the 040 and see which you
prefer, but don't get a 099 especially for photo's as it's just not worth
it.

Jason Revell
jason.revell@xxxxxxxxx
 ----------
From: lxzhang@xxxxxxxxxx

I am gonna try out a roll of EIR. The datasheet says I have to use a
Wratten 12 filter. In www.al.nl
BW 099, or Schott OG530, is listed equivalent to Wratten 12. Is that to say
I can just buy a BW099 and put it on to shoot EIR?

There are confusing sayings. Some say a dark yellow filter is OK for EIR.
Someone however says a standard yellow is good enough, as he does not like
an orange filter for EIR. (he seems to believe BW099 is an orange filter.)
Well I understand that everyone has his own taste.

My question: if I use a dark yellow, can I just take a BW023, or can I just
use BW040 (yellow orange)? What is the point that I have to use BW099,
which is much more expensive?

Loui
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