Royce Bair ([log in to unmask]) writes:
> However, I have a need to convert the f-stop and shutter settings to
> either "footcandles" or "LUX" levels. I need this conversion for some
> scientific testing I'm doing.
There is an article on this subject on our web site at http://magi.com/~wohler
Choose Resources, then PWA Online Publications. The tables of info are
from the Canadian Conservation Institute and the US National Park Service.
You will be able to determine if the procedure is accurate enough for your
purposes.
Cheers, Dennis.
--
Dennis Lloyd | Affordable help for regional museums
Vice President and Senior Associate | (613) 256-4316 FAX (613) 256-7086
Pat Wohler and Associates Inc. | http://magi.com/~wohler/