Longtudinal chromatic aberration and light sources

Started Oct 1, 2011 | Discussions thread
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Longtudinal chromatic aberration and light sources
Oct 1, 2011

I was checking my Nikon 70-210mm F/4 series E and my Nikon 85mm f/1.4 D shooting a white paper strip with ruler markings to get a sense of the level of longitudinal chromatic aberration and while it was (sigh) very easy to see the red/cyan fringes when the light source was an incandescent light bulb with a metal reflector, there was none when using a flash. Both lenses were tested fully open and at the same (approximately) 85mm focal length.
I guess this has to do with the wavelength spectrums of the two light sources?

It was heartwarming to see the SB800 teach the lenses what appropriate optical behavior is about.
Best Regards,

'The world is going to pieces and people like Adams and Weston are photographing rocks.' Henri Cartier Bresson, in the 1930's

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