Name that wood!

Re: Fringing

wilbur

>Dave,

This is probably what Pam is talking about.

Chormatic Aberration *LINK*

Dave Thompson

>Is that what you're talking about Pam?, i.e. the blue fringe along the right side of the orca? That is pretty severe chromatic aberration. This is a function of the lens. It should be most visible in dark/light regions.

A google on chromatic aberration will give you a ton of info, however here's one to get you started.

enjoy,

Dave


Additional Info on CA

Re: Chormatic Aberration

paul womack

>This is a function of the lens. It should be most visible in dark/light regions.

In digital cameras, it can also be caused by saturation of induividual colour sensors, leading to chromatic issues, and also caused by de-mosaicing.

In your worst nightmare, all three causes could be running at once :-(

BugBear

Re: Chromatic Aberration

Dave Thompson

>This is a function of the lens. It should be most visible in dark/light regions.

This comment was meant for chromatic aberration is a function of the lens. Whether wilbur's picture has additional issues I'm not sure.

In digital cameras, it can also be caused by saturation of induividual colour sensors, leading to chromatic issues, and also caused by de-mosaicing.

I know of three very different sensor technologies commonly used in consumer grade cameras, and would venture a guess that there are more. Among each of these different technologies, they also have their own set of varying implementation details... pixel densities, color sensor arrangements, anti refelctive coatings, anti-static coatings, etc. I think it's problematic to make generalizations at the level of all digital cameras sensors. I don't doubt that what you say may affect some sensors, and hope it would be limited to low end, or early implementation sensors.