Re: [ATM] Wratten #3N5 filter

[Dominic-Luc Webb <dlwebb@canit.se>]

> >> Could someone please tell me what the Wratten #3N5
> >> filter is relative to the other dye in gel filters
> >> that come in various colors (Wratten numbers).  And,
> >> what would be the use of the #3N5?
> >>
> >> Thanks.
> >>
> >> John Lynch

What:

3N5 = Kodak #3 plus neutral density of ½.

Basically, this is a medium/light yellow, and should appear yellow.
Kodak still makes and sells Wratten filters under license through
Tiffen Corporation. I believe "Tiffen" is not different filter, but
only a different name for Wratten filters. The 3N5 is a standard
filter and used for sky filtering, etc. It is used extensively in
B&W photography. The site below has a more extensive filter listing
than most others and gives descriptions. The current 3N5 is
specified, for instance.

http://www.pdqphoto.com/tipsfilters.html

I do not know of an absorbance spectrum for these filters, but
I have equipment and can scan it if you want. Contact me off
list in this case.

USE:
Sky filtering

Dominic-Luc Webb

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