New Zeiss white paper on DOF and bokeh

[Oren Grad]

http://www.zeiss.com/C12567A8003B8B6...5_Bokeh_en.pdf

Although many will find this heavy going in places, it amply repays a close reading, explaining many subtle phenomena and debunking assorted folk wisdom on these topics. Those who insist that the basic equations from geometric optics explain all may find some surprises too.

[Dan Fromm]

Oren, one of my teachers was the late Karl Brunner, a Swiss monetary economist. He did all of his economics in English, insisted that it was impossible to think clearly in German.

[Oren Grad]

Dan - Yes, I should probably have said "an excruciatingly close reading".

[Nathan Potter]

Oren, at first glance it appears a good summary of DOF and COC phenomena, and well written. Many thanks for the ref.

Nate Potter, Austin TX.

[Frank Petronio]

Yeah yeah yeah but why did the cheap bastards put all those five-bladed apertures into their Rollei and Blad lenses? A crime I tell you!

[Robert Hughes]

Yeah yeah yeah but why did the cheap bastards put all those five-bladed apertures into their Rollei and Blad lenses? A crime I tell you!

Uh, they didn't know how to spell Bo-kay? "It's out of focus, who cares?"