Post Camera/Exposure Approximator

[jujubee]

It would be great to have a slider/values to 'approximate' what a rendering would look like with various physical camera settings. Basically, the VFB would be able to adjust the floating point values as well as 'fake' different camera lens. It would probably only work for previewing.

[ene.xis]

if u use ultra low settings for preview purposes save ur GI solution and then re render adjusting ur cam settings loading the saved GI...thats how i ve been doing!

[Gijs]

basically you can already do that with exposure correction. Since iso, aperture and shutter speed are inter exchangable (in terms of exposure) you can see very fast how to change your camera settings.