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Old Apr 16, 2005, 7:27 PM   #11
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Hrmm, for instance I was reading a review on the EF-S 17-85mm and at one part they posted multiple pictures of different settings like f8 , f11, f16, etc. But the thing was the front of the lens labels out its max aperture (4-5.6 in this case ), and I had no idea why they had numbers OUTSIDE that range... it was a mind boggle until I realized max aperature values are the minimum numerical values...

...
*cough*
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Old Apr 16, 2005, 7:29 PM   #12
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Oh, also

Question 3: All in all, would you choose a greater aperture value over IS? A very small aperture or good IS will both *really* increase the price on the lens... but an IS can only deal with non moving objects, yes? Moving objects will still be blurry...

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Old Apr 16, 2005, 10:07 PM   #13
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FYI - http://www.uscoles.com/fstop.htm :idea:


BoYFrMSpC wrote:
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IS can only deal with non moving objects, yes? Moving objects will still be blurry...
Correct - @ 1/20s the static walls remain sharp, but the moving person is still blurry because of the slower shutter:






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All in all, would you choose a greater aperture over IS?
Yes - a larger aperture allows a faster shutter speed -> If a shutter speed is fast enough to freeze an action then IS becomes redundant, plus you gain the extra 'bokeh' which is less evident as the aperture become smaller
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Old Apr 16, 2005, 11:16 PM   #14
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Oh man, that link was a lifesaver! thanks :-)

It was so much better than trying to understand aperture/shutter by reading reviews and forums.
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Old Apr 17, 2005, 6:38 AM   #15
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BoYFrMSpC wrote:
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It was so much better than trying to understand aperture/shutter by reading reviews and forums
How about the Basics
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