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Is the K factor relevant to me or should I cancel it out?


Thanks for sharing and for the great job.
 
Ashfaque,

Brings tears to my eyes, it's a beautiful typesetting job and makes the material easier to read.

For fun, I followed along with my new Weston Master III - in CONNELLEY, following formula (17)... he mentions the sunny 16 conditions are 250 to 300 candles per square foot. So I dialed in ASA 400, set the arrow at 250 candles per square foot (It's the mark after 200. To find the unmarked light scale values, I found a picture of a Weston Model 650 which labels every light value... the missing parts of the Weston light scale sequence that I need include... 80, [100], 130, 160, [200], 250, 320, [400], 500).

This aligned 1/400 shutter speed with f/16

Interesting note, this meter is marked ASA - K = 1.0 on the back.