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Old 7th December 2021, 01:47 PM
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Dave Hodson Dave Hodson is offline
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Join Date: Oct 2016
Location: Alberta, Canada
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I saw something similar in Fred Picker's videos and in his book "Zone VI Workshop" he wrote "ten one-second exposures will give less density to a print (or negative) than one ten-second exposure". He called it the intermittency effect and was explaining why the clouds were darker on his print.
I'm still learning as a printer so probably wouldn't notice but don't we see something similar with the reciprocity effect on film when calculating exposure? Combine that with the bulb warm up concept that Uwe and John mention above and the idea makes some sense. In the interests of best practices, it might be the thing to do.
Having said that, I don't see any mention of it in Ansel Adams "The Print". He goes with the total time that gave him the exposure he wanted on the test strip.
It's an interesting idea though and something I'd like to understand better. Thanks for posting
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