On 5/30/2015 2:05 PM, Larry Colen wrote:
A question for the macro mavens, Is there an noticeable difference in
depth of field of the subject, when using different focal length lenses?
For example, if I were to come in to the distance where I'm at 1:1
magnification with my 35, 50 and 90mm macros, and focus on the 10cm
mark on a ruler, would one of the lenses show more depth of field
than the others?
The 90mm lens will be furthest away and the 35mm lens would be nearly
touching at 1:1, and there would be big differences in how wide an
angle of background that you see, but is there much difference in what
is in focus
In theory, the shorter focal length lens will provide greater depth of
field. In practice, at macro distances the difference will be
indiscernible. Also, with retrofocus lens designs your DOF will be
extend slightly farther behind the subject and with telephoto lenses DOF
will extend slightly more toward the camera. But again the difference
will be insignificant in practice at macro distances.
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