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<blockquote data-quote="Lawrence" data-source="post: 418166" data-attributes="member: 16844">Have taken a few shots using my Tamron 90mm for comparison purposes. The only difference between each shot is the aperture setting. Everything else remained untouched.I used the liveview to get the sharpest focus I could and the &quot;50&quot; was my focus point.All images are straight out of camera with no PP&nbsp;[MENTION=9753]Scott Murray[/MENTION] and [MENTION=6277]Don Kuykendall[/MENTION] let me know what you think.First shot was at f 7.1Note how the focus on the lines is above the 50 mark on either side and then below the 50 on the outside (right).[ATTACH]141114[/ATTACH]The next is at f 9.0Very little difference to my eye.&nbsp; The brighter exposure is probably me holding the off camera flash a bit close.[ATTACH]141117[/ATTACH]Then at f 11[ATTACH]141123[/ATTACH]f18[ATTACH]141123[/ATTACH]f 25[ATTACH]141124[/ATTACH]and finally f 40 A bit dark - sorry[ATTACH]141126[/ATTACH]</blockquote>

[QUOTE="Lawrence, post: 418166, member: 16844"] Have taken a few shots using my Tamron 90mm for comparison purposes. The only difference between each shot is the aperture setting. Everything else remained untouched. I used the liveview to get the sharpest focus I could and the "50" was my focus point. All images are straight out of camera with no PP [MENTION=9753]Scott Murray[/MENTION] and [MENTION=6277]Don Kuykendall[/MENTION] let me know what you think. First shot was at f 7.1 Note how the focus on the lines is above the 50 mark on either side and then below the 50 on the outside (right). [ATTACH=CONFIG]141114._xfImport[/ATTACH] The next is at f 9.0 Very little difference to my eye. The brighter exposure is probably me holding the off camera flash a bit close. [ATTACH=CONFIG]141117._xfImport[/ATTACH] Then at f 11 [ATTACH=CONFIG]141123._xfImport[/ATTACH] f18 [ATTACH=CONFIG]141123._xfImport[/ATTACH] f 25 [ATTACH=CONFIG]141124._xfImport[/ATTACH] and finally f 40 A bit dark - sorry [ATTACH=CONFIG]141126._xfImport[/ATTACH] [/QUOTE]

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