Wavelength of Ilford's 902 safelight?

MurrayMinchin · Mar 30, 2007

Anybody know?

From the fact sheet on Ilford's website it appears the 902 safelight kicks in at around 560nm...is that about right?

Murray

markbb · Mar 30, 2007

I imagine that that's why Ilford would give such a figure on the fact sheet!

MurrayMinchin · Mar 30, 2007

It's in graph form, and I'm just double checking...

Murray

markbb · Mar 30, 2007

Sorry! I'm sure if you filled in this form ( http://www.ilfordphoto.com/contactform.asp ), you'd get a response.

MurrayMinchin · Mar 30, 2007

No problem, and thanks for the link

Murray

Chan Tran · Mar 30, 2007

You're right Murray. The 902 filter cut out most of the visible and UV light and only starts to transmit light at 560nm and longer wavelength.

MurrayMinchin · Mar 30, 2007

Thanks Chan Tran.

Murray

dancqu · Apr 1, 2007

Chan Tran said:
The 902 filter cut out most of the visible and UV light ...

To be expected of a safelight suited to VC papers;
a big loss of the visible. Filters suited to Graded
papers offer another story. Dan

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