Newbie question on Fstop vs FL

Started Feb 21, 2012 | Discussions thread
chris102
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Re: Newbie question on Fstop vs FL
In reply to bdscorvette, Feb 21, 2012

No, it will be harder. Depth of field decreases with 1) a larger aperture, 2) a longer focal length, and 3) being closer to your subject.

bdscorvette wrote:

With a 50mm @ 1.8-2.2 it is nearly impossible to get both eyes in focus. By 2.5-2.8 it becomes much easier. Does this change going up in focal length? i.e. With an 85mm - 105mm will I now be able to get both eyes in focus easier at 1.8-2.2??

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