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10-18-2013, 04:31 AM   #31
racingsnake's Avatar

Join Date: Mar 2012
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QuoteOriginally posted by Driline Quote
So what is the sweet spot? F 6.7 ?
Spot on!!!6.7-7.1 for sure.
F-8 loses most of the detail due to difraction.

10-18-2013, 08:38 AM   #32
normhead's Avatar

Join Date: Jun 2007
Location: Near Algonquin Park
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QuoteOriginally posted by Driline Quote
So what is the sweet spot? F 6.7 ?

It's only lost less than 10% resolution by F8. ƒ8 is still in klaus' excellent range.

F8 photo

But even at f22, diffraction has set in, but you can still take a nice picture. Sharpness isn't everything. Sometimes having more of the scene in good focus is better than having a fraction of the scene in excellent focus.

F22 image

Where the sweet spot is depends on the scene being captured.

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