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600 mm prime
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<blockquote data-quote="J-see" data-source="post: 462506" data-attributes="member: 31330"><p>When I fine-tuned her on the D7200, I used the 420mm since that's where she performs at her best. 600mm and 150mm both required a different value from + to - on the scale.</p><p></p><p>It's often better to tune focus somewhere in the middle of the range since that gives you a larger focal range that is in acceptable focus. If you tune her at the far end (or short end), only that area is good and all the rest becomes worse and worse. Or you can memorize the AF needed and manually adjust each time.</p></blockquote><p></p>
[QUOTE="J-see, post: 462506, member: 31330"] When I fine-tuned her on the D7200, I used the 420mm since that's where she performs at her best. 600mm and 150mm both required a different value from + to - on the scale. It's often better to tune focus somewhere in the middle of the range since that gives you a larger focal range that is in acceptable focus. If you tune her at the far end (or short end), only that area is good and all the rest becomes worse and worse. Or you can memorize the AF needed and manually adjust each time. [/QUOTE]
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