Iris properties in CS5.5 and later

In After Effects CS5 and earlier, the camera Depth of Field blur tended to…calculate slowly, and didn't really look all that good.…Well this changed as of After Effects CS5.5, where the camera now gained a large…number of iris-related parameters.…The iris being the opening in a camera, which determines the shape and…quality of the blur.…The default is Fast Rectangle, which is how After Effects CS5 and earlier looked.…However, you now have a long list of different basic iris shapes, from ones that…can be quite graphical, like Triangle, to once that are more similar to a real…camera. Hexagon has six vein iris, Heptagon is a to seven vein iris, et cetera.…

Hexagon is a good typical camera look.…I'll take a snapshot of that for comparison.…And go back to Fast Rectangle for comparison. Very much like a box blur compared…to the more realistic Hexagon form.…These various Blur parameters were both added to the Camera and also to a 2D…effect called Camera Lens Blur.…To explore these parameters, sometimes it can be faster to work with a 2D…