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Telephoto
Calibrating Autofocus on Sigma 150-600 Contemporary
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<blockquote data-quote="mikew_RIP" data-source="post: 670849" data-attributes="member: 14174"><p>My normal testing for long lenses is simple, i place an obvious target like a fag <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite8" alt=":D" title="Big grin :D" loading="lazy" data-shortname=":D" /> packet on tarmac or short grass, at 600mm focused on the target you will see if its front or back focused easily, only today i dumped all my test shots from yesterday or i cou;d have shown you how obvious it is.</p><p>Long lenses i only do at the long end and i gave up on the D500 auto fine tune, i got too many different results.</p></blockquote><p></p>
[QUOTE="mikew_RIP, post: 670849, member: 14174"] My normal testing for long lenses is simple, i place an obvious target like a fag :D packet on tarmac or short grass, at 600mm focused on the target you will see if its front or back focused easily, only today i dumped all my test shots from yesterday or i cou;d have shown you how obvious it is. Long lenses i only do at the long end and i gave up on the D500 auto fine tune, i got too many different results. [/QUOTE]
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Calibrating Autofocus on Sigma 150-600 Contemporary
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