Time to be with your loved ones

Time to be with loved ones

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1
vote
2answers
93 views

Is there a program for removing purple fringing for Ubuntu?

Some of my photos taken in bright daylight with film era lenses show purple fringing. To remove it I have tried: Bibble 5, does not seem to have any way of doing this. I used the hue-saturation ...
3
votes
2answers
897 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
199 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 ...