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Re: [ATM] Wratten Filter Transmission Curves


Anthony,

Filters are not really like mirrors and older filters rarely
got protective coatings. They can get old and worn out. I am
worried you are getting excited about obtaining a piece of
glass with the right part number that no longer has the
spectrum shown in the figure. Let me know if you want me to
scan these for you sometime.

Dominic


On Mon, 24 Apr 2006, Anthony Stillman wrote:

> Wratten Filter Transmission Curves
>
>   #25  #58  #49
>
>   <http://www.atmlist.net/contrib/atmer-at-flash-dot-net/wratten.jpg>
>
>
>   It took me forever to find #49.  The blue of the set now forty plus years old.
>   Thanks everyone who helped.
>
>   Anthony
> _______________________________________________
> ATM mailing list http://www.atmlist.net/
>

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