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07-23-2008, 05:32 AM   #31
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QuoteOriginally posted by cheekygeek Quote
While there may be relatively few times that you want to shoot wide open, it is nice to have when you must. Also, don't forget the effect on bokeh (on all apertures) of having a faster lens.
Not to mention that no lens performs as well wide open as it does a stop or two down. While I can think of few shots that need to be at 2.8 at 11mm, I can think of plenty at 4.0 and 5.6 is just about right for most of what I do in the superwide range.

While a 4.0 lens might have been able to get most of the shots that this one will get, given the propensity for shooting at 5.6, I think that extra stop of "MTF safety," if nothing else, will prove useful. I think the MTF tests bear this out.

Plus, if you actually do need 2.8 for a shot, it sure is nice to have.

07-23-2008, 09:23 AM   #32
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Sdm ???

SDM ??

Simply Delightful Massage?
Soulful Diva Mama?

or, the more pedestrian Silent _____ Motor?

Google'd Pentax SDM lens to little avail.

Thanks.

- Richard

Last edited by expatCanuck; 07-23-2008 at 09:32 AM.
08-25-2008, 09:15 AM   #33
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QuoteOriginally posted by expatCanuck Quote
SDM ??
Supersonic Direct Motor (or Supersonic Direct drive Motor)
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