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Re:Eclipses and Decibels by dredmorbius on Monday August 28, 2017 @03:46PM (#15119476)
NB: The colour-balance of night, say, under a full moon, is actually pretty close to that of daytime.

It's just ... well ... a lot darker.

Shooting long-exposure slide film is a good way to confirm this (no colour adjustment possible).

Moonlight is has a slightly lower (that is, optically "warmer") colour temperature -- 4100K rather than 5000K.

Contrast with "daylight" vs. "tungsten" film colour balance: 5500K vs. 3200K.

https://physics.stackexchange.com/questions/244922/why-does-...

http://www.apogeephoto.com/white-balance-and-color-temperatu...

Re:Eclipses and Decibels by nkrisc on Monday August 28, 2017 @04:02PM (#15119596)
A lot darker, indeed. I recall camping in the mountains near Vail, Colorado many years ago during a full moon. It almost felt like day, but with a black sky. It was quite surreal. My immediate surrounding were illuminated (everything cast a distinct shadow) but everything just beyond your immediate vision was in darkness.
Re:Eclipses and Decibels by Florin_Andrei on Monday August 28, 2017 @08:48PM (#15121359)
> Shooting long-exposure slide film is a good way to confirm this (no colour adjustment possible).

Or shooting long exposure with a digital camera that does not automatically adjust the color balance. E.g. take the raw data from the sensor, instead of a camera-generated JPEG.

Re:Eclipses and Decibels by dredmorbius on Monday August 28, 2017 @10:59PM (#15121809)
Right. I was also contrasting _print_ film (negative process) as virtually all film-development would attemtp to "correct" shots for exposure and colour balance.

(Much of my experimental night photography was conducted ... some time ago.)

Re:Eclipses and Decibels by Florin_Andrei on Tuesday August 29, 2017 @03:03PM (#15126767)
Hey, I did some of that too. Had my own little dark room and everything.

Working with film was, um, exciting? Not sure if that's the right word. Anyway, mistakes were final. I remember deliberating on the settings for a really long time before pushing the button.