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<blockquote data-quote="BackdoorArts" data-source="post: 144831" data-attributes="member: 9240">Not one to shoot down personal findings, but I'll only say that &quot;your mileage may vary&quot;.&nbsp; Here are a pair of shots taken handheld at about 12-15 feet, both at f8.&nbsp; Not what I'd call &quot;unusable&quot;.&nbsp; <img src="http://farm9.staticflickr.com/8376/8541879003_f9b9762284_o.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /><img src="http://farm9.staticflickr.com/8276/8700836125_2c338b32eb_o.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" />Below f8?&nbsp; Yeah, things start getting sketchy.&nbsp; Just curious, what camera were you using and what focal length?&nbsp; The DoF below f11 may be so small at 15 feet that what you're seeing is a focus issue?&nbsp; With my D7000 and this lens I needed to do some serious focus calibration.&nbsp; Also, the lens can get a tad soft at 500mm, so if you're at full extension that may be what you've got.&nbsp; Again, not disputing what you results showed you, only saying that I've found differently and do most of my shooting at f8-f11 and try to keep it at 450mm and below with this lens and am absolutely pleased.</blockquote>

[QUOTE="BackdoorArts, post: 144831, member: 9240"] Not one to shoot down personal findings, but I'll only say that "your mileage may vary". Here are a pair of shots taken handheld at about 12-15 feet, both at f8. Not what I'd call "unusable". [IMG]http://farm9.staticflickr.com/8376/8541879003_f9b9762284_o.jpg[/IMG] [IMG]http://farm9.staticflickr.com/8276/8700836125_2c338b32eb_o.jpg[/IMG] Below f8? Yeah, things start getting sketchy. Just curious, what camera were you using and what focal length? The DoF below f11 may be so small at 15 feet that what you're seeing is a focus issue? With my D7000 and this lens I needed to do some serious focus calibration. Also, the lens can get a tad soft at 500mm, so if you're at full extension that may be what you've got. Again, not disputing what you results showed you, only saying that I've found differently and do most of my shooting at f8-f11 and try to keep it at 450mm and below with this lens and am absolutely pleased. [/QUOTE]

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