Filters

[yoda]

Hi all

I have just orded 9 filters from astro Buy & Sell and Andy the seller was very helpfull but I forgot to ask what dose the % transmassion mean,(eg, #23A light red 25%Transmassion), And is thear a PDF list of filters that tells you what individual filters do thank you all, all the best.

[Glen]

Tranmission of light maybe, or effective strenght? intrested in this also

[Stephen]

It's the percentage of light allowed through, and there's a primer on filters in the Primers and Tutorials section

[Psychobilly]

You might find this useful...

http://www.brayebrookobservatory.org/BrayObsWebSite/HOMEPAGE/forum/colourfilters0/colourfilters.pdf

The numbers on coloured filters are the Wratten numbers....

Wratten number - Wikipedia, the free encyclopedia

Billy...

[Glen]

Extremely useful thanks very much guys, i will look that up on sgl .

added to list of bookmarks 'to read'

tyvm

Glen

[yoda]

Thank's a lot guys. Billy that's fantastic cheers mate.