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Old Thursday 25th April 2019, 18:26   #27
WJC
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Join Date: Jul 2005
Location: Twin Falls, Idaho
Posts: 2,272
Quote:
Originally Posted by typo View Post
Paddy,

I confess I don't always find it easy to follow Bill's stuff. (I usually put it down to a lapse in medication, though whose I'm not sure. ) He's right that points on his list contribute to various parameters affecting both retinal illuminance and perceived brightness. However, for those who were unsure of his intentions, you can't dismiss the importance of coatings and aperture for retinal illuminance, though brightness perception is much less predictable.

David
There is almost always a method to my madness. There would have to be; I don't drink or use drugs!

Bill
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