Index matching fluid
On: Thu, May 09, 02 01:57:05 PM
|Under the web page:
is the "35mw diode test" where "index matching fluid"
was NOT used.
My questions are what is this fluid (made of what?) and
why is it (sometimes) necessary?
Colin Kaminski - Thu, May 09, 02 09:28:32 PM If you look back in the older posts there is a long thread
covering the things people use and the methods. I seem to
remember a long post from Jonathan H. covering a good
method. Frank has sorted out a method to not use it and it
is posted there as well.
It's purpose is to stop the reflection from the interface
between the back of the film and the film holder. This can
cause a reflection that makes a "wood grain" pattern in the
The most commen problem is to have dust land on the holder
before you can get the film down. This causes little "fish
eyes" in the hologram. 22.214.171.124
Colin - Thu, May 09, 02 11:36:27 PM I didn't read all the way through to make sure but I think
this is the thread:
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