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Ulophot
9-Apr-2025, 06:31
I came across this guide this morning in responding to a question posted. On reflection, I thought I'd post it for any who may find it useful, but the file is far too large, and down-sampled the text becomes a challenge to read. So, here's the link:

https://archive.org/details/in.ernet.dli.2015.351390

Martin Aislabie
9-Apr-2025, 09:10
I came across this guide this morning in responding to a question posted. On reflection, I thought I'd post it for any who may find it useful, but the file is far too large, and down-sampled the text becomes a challenge to read. So, here's the link:

https://archive.org/details/in.ernet.dli.2015.351390

There is downloadable PDF of the document, if you want it.

Scowl down to see the download options.

Martin

Drew Wiley
9-Apr-2025, 17:13
That's a nice thing to do, posting it; but it's way way out of date. The last edition of the Kodak Wratten Filter Handbook was probably in the 90's, and has far more information including spectrograms and transmission values for the full selection of filters, which happens to be way way larger than what they had in the 20's. Even the numbering system changed. Some used bookstores have various Kodak guides in some bin or another for sale.

Ulophot
9-Apr-2025, 17:28
Thanks for that, Drew. I don't often have occasion to refer to Wratten numbering, but indeed, I have forgotten how active Kodak still was yesterday, in the '90s.