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D5100 Dusk/dawn scene: white balance varies?

adamruef

US
5 posts

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adamruef Registered since 24th May 2012
Wed 11-Jul-12 01:05 PM | edited Thu 12-Jul-12 06:06 PM by adamruef

I shoot lots of dawn/sunrise/sunset/dusk photos. Experimenting with my new D5100, it seems the Dusk/dawn scene works well when I'm in a hurry. When I look back at the resulting pictures, the WB varies between 4550K and 5000K, and seems to be a function of ISO. Of the pics I've taken, it looks like 5000K is used ISO200 and below, and 4550K above ISO200. Can anyone confirm this is what the camera is doing? Thanks.

Leonard62

Hatboro, Pa, US
4035 posts

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#1. "RE: D5100 Dusk/dawn scene: white balance varies? " | In response to Reply # 0

Leonard62 Gold Member Awarded for excellent contributions and sharing his in-depth knowledge and experience with the community, especially of Nikkor Lenses Writer Ribbon awarded for his contributions to the Nikonians Resources articles library Nikonian since 15th Mar 2009
Fri 13-Jul-12 12:08 PM

My D5100 doesn't change color temp with ISO. I ran two sets of tests with different lighting.

First when setting the scene to Dusk/Dawn the camera wants to go to Auto ISO. However it can be over ridden to whatever you want.

My first test was in lighting that was mostly daylight. I used ISO 200 and ISO 500. The color temp stayed at 4550˚K.

My second test was in lighting that was mostly Red/Yellow as you'd see during sunset. Auto ISO set the exposure at ISO 800, I set ISO to 160 and then again at 640. For all three exposures the color temp stayed at 4550˚K.

However I don't have the light that you shot at so I don't know how my camera would react under your condition.

Len

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kenjifujiwara

US
28 posts

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#2. "RE: D5100 Dusk/dawn scene: white balance varies? " | In response to Reply # 1

kenjifujiwara Registered since 17th Oct 2012
Mon 31-Dec-12 08:02 AM

In my D5100, seem it's the white balance that has something to do with temp. not its ISO.

G