At any magnification the DOF for either lens will be roughly the same
for a give f stop. I'd go for the 100mm for macro work it will give you
a lot more working room at any given magnification, unless you expect to
be working in cramped quarters then get the 50. As far as optical
qualities, Pentax has never made a bad macro.
On 2/6/2014 2:35 PM, Glen Berry wrote:
Please help me decide on a used Pentax macro lens. I've narrowed it
down to these two used lenses:
50 F2.8 SMC MACRO D FA
100 F2.8 SMC D FA MACRO
What are the pros and cons of the 50mm vs the 100mm?
What applications would the 50mm be best for?
What applications would the 100mm be best for?
Does either of them have a reputation for being noticeably sharper
than the other?
Would the 100mm exacerbate the already shallow depth of field inherent
in macro photography, in other words, would the 50mm have greater
depth of field at 1:1 magnification?
Thanks, for any suggestions!
--
A newspaper is a device for making the ignorant more ignorant, and the crazy,
crazier.
- H.L.Mencken
--
PDML Pentax-Discuss Mail List
[email protected]
http://pdml.net/mailman/listinfo/pdml_pdml.net
to UNSUBSCRIBE from the PDML, please visit the link directly above and follow
the directions.
