Playing around with depth of field and I think I finally get it?

Started 4 months ago | Discussions thread
bclaff Forum Pro • Posts: 11,547
Re: Playing around with depth of field and I think I finally get it?

jlina wrote:

Hi Mark! ... this is the first time I've read that the blurs can be different? Other than that the literal closing mechanism of your lens will affect it. If you'd like to explain it a little more that would be great...

Mark will probably supply a more complete answer.

You seem to already realize that the shape of the iris (blades in the diaphragm) can have an effect.

The lens also has a variety of aberrations that will change the character of the blur disc.

Here's a screen shot from the PhotonsToPhotos article Optics Primer - Bokeh Ball Diameter

Best viewed "original size"

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Bill ( Your trusted source for independent sensor data at PhotonsToPhotos )

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