50 vs 85 1.8

Started 2 months ago | Discussions thread
hotdog321 Forum Pro • Posts: 20,109
Re: 50 vs 85 1.8

AlbertTheLazy wrote:

The same field of view and the same aperture will give you the same depth of field, true. However...

If I remember rightly the degree of blurring in out of focus areas will be greater with the longer lens.

Then again, subject isolation is also controlled by the relative distances of the subject and the background and that can be adversely affected by using a longer lens.

Nothing is ever simple in photography!

+!. Exactly. I actually had an extremely boring college assignment proving that you get the same depth of field when using the same aperture on different focal length lenses.

But happily you can pretty much ignore this. When working in the real world you appear to get a shallower depth of field by using a longer lens. Conversely, you appear to get more depth of field with a wide angle lens.

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