Visual understanding aperture.

[arcooke]

I was messing around on Wikipedia and came across the Depth of Field entry. There's a diagram in there that really helped me to understand exactly how aperture works inside a camera.

Just thought I'd share it.. hopefully it helps others understand. I always knew what it did, to a point, but never understood how it worked.

Effect of aperture on blur and DOF. The points in focus (2) project points onto the image plane (5), but points at different distances (1 and 3) project blurred images, or circles of confusion. Decreasing the aperture size (4) reduces the size of the blur circles for points not in the focused plane, so that the blurring is imperceptible, and all points are within the DOF.

Source: http://en.wikipedia.org/wiki/Depth_of_field


EDIT: Oops, made a typo in the thread title. Ignore that.

 

[Computer_Generated]

Glad that helped you. Thanks for sharing it with us.