Forgotten in its old age

by Aditya

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4
votes
1answer
203 views

Why does this satellite image of an airplane in motion show red, green, and blue bands with strange artifacts?

I stumbled upon this satellite image (http://goo.gl/Wv503u) capturing a plane in flight over a city. I'm having a little trouble explaining the color effects caused by the aircraft motion. What I ...
3
votes
2answers
1k views

What causes longitudinal chromatic aberration on Nikon 50mm f/1.4D?

I have looked on my new 50mm lens photo (I have Nikon D90) and I see "purple fringing" around the unfocused objects (longitudinal chromatic aberration). What's is going on? Is it common for this lens ...
3
votes
2answers
201 views

Where do these “redshifts” and “blueshifts” come from?

I make many product photos for the company I work for. For this I use Canon 400D with two external flash devices Walimex CY-600K. I've noticed an interesting effect on many of the photos I take with ...