[jc4d]

As the title say this feature would be nice as interactive slider when the render is in progress like the burn and gamma control.
Here is the link to wikipedia: http://en.wikipedia.org/wiki/Chromatic_aberration

Cheers
JC

[Fernando Tella]

Interesting!

Though it would reduce quality it would make images more real and hard to take as CG.

[sandykoufax]

The lesser chromatic aberration, the better camera.

maxwell camera is the best camera.

anyway, very interesting idea.

[deadalvs]

sorry, i can not follow.

chromatic aberration is the same effect as dispersion, it's a synonym.

it has to do with the different reflection properties based on the wavelenght of the light.

so why would the «CGish» character of a rendering with «optimized lenses» disappear? IF we want realistic images, then we need this effect and i have never seen a rendered image with maxwell which would show this effect at all !

cg images are CG and even reducing a normal effect, like dispersion inside the camera's objective would make the render even more cg !

please help me ...

[deadalvs]

plus it would be IMPOSSIBLE to do this with a single slider because if the the properties of the lens is changed, also their projected image itself is «bent» and thus the displayed image is SHIFTED. meaning being a blur, as seen in these examples on wiki. it's near the same discussion also why DOF with shutter speed and f-stop can not be be adjusted in post with «a slider»

this is just technically impossible.

i think what You guys seek for is the INVERSE to the the mentioned wiki-article !
this lens described makes the image sharper decreasing dispersion in the camera and what You guys want is increasing the dispersion, so it looks blurred afterwards...

[dyarza]

Yes, but lets make every effort to simulate a "good quality" lens... (see Wiki images)...

[deadalvs]

ah certainly, in an implementation of a «realistic» lens model for maxwell, such a feature would make perfectly sense.

there were a lot of wishes around based on cameras which advanced artists would need.

* * *

addendum:
i think we all know what time increase we have by adding chromatic aberration to a standard dielectric material and with a camera model discussed above, we'd add this feature to the camera's objective too, which lets images tend to render forever and ever and ever and ever and ever and ever and ... yeah, You get it.

[Renato Lemus]

The interesting thing, would be if maxwell could calculate physically correct aberration, based in lens properties, because if it's a simple filter, it can be achieved in photoshop.