Re: crazy OOF shape

bjw@xxxxxxxxxxxxxxxxx wrote:

Paul Furman wrote:

bjw@xxxxxxxxxxxxxxxxx wrote: 


That's what an iris diaphragm looks like when the leaves get
slightly offset from where they are supposed to be.  The "notch"
in the gear is the end/corner of the leaf, which normally
should be overlapped by the next leaf over.


So it's a broken lens, like they tried to stop it up wider than the lens
was designed for. Those are really huge OOF circles too. I might guess
the faster the lens, the larger the OOF circles?


It's not really broken, but the diaphragm is a little out of
adjustment. That's more common than you might think. I'm a
little surprised to see it in a movie,

Keep in mind that projected on the screen you probably wouldn't see those hi-lites in quite the same way you see them in the still image, since they would be on the screen for only 1/24 of a second before moving.
.