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<blockquote data-quote="GracieAllen" data-source="post: 573662" data-attributes="member: 41283">I just got a response from Kenko USA letting me know they're still heckling 'Japan' for some kind of resolution...The other day I was chasing butterflies and once again it was made very clear how difficult it is without food, fast autofocus.&nbsp; They were on tall flowers in a ditch so I HAD to be several feet away.&nbsp; Put the Sigma 150-600 with a 36mm extension tube on the D7200 and was able to reduce the minimum focus to about 5 feet.&nbsp; Which worked great for doing closeups on butterflies on flowers and even bees.UNFORTUNATELY, having to manage both the zoom ring AND the focus ring because it won't autofocus is a HUGE pain in the neck when you're chasing very active subjects that are flitting from flower to flower and moving constantly...&nbsp; My failure rate was extremely high.Hopefully, they, Kenko, will come up with some resolution.........HAS ANYONE found a set of fully-coupled extension tubes that will actually PROPERLY autofocus a Nikon D7200 with any normal Nikon zoom?&nbsp; Or even a fixed focal length?</blockquote>

[QUOTE="GracieAllen, post: 573662, member: 41283"] I just got a response from Kenko USA letting me know they're still heckling 'Japan' for some kind of resolution... The other day I was chasing butterflies and once again it was made very clear how difficult it is without food, fast autofocus. They were on tall flowers in a ditch so I HAD to be several feet away. Put the Sigma 150-600 with a 36mm extension tube on the D7200 and was able to reduce the minimum focus to about 5 feet. Which worked great for doing closeups on butterflies on flowers and even bees. UNFORTUNATELY, having to manage both the zoom ring AND the focus ring because it won't autofocus is a HUGE pain in the neck when you're chasing very active subjects that are flitting from flower to flower and moving constantly... My failure rate was extremely high. Hopefully, they, Kenko, will come up with some resolution......... HAS ANYONE found a set of fully-coupled extension tubes that will actually PROPERLY autofocus a Nikon D7200 with any normal Nikon zoom? Or even a fixed focal length? [/QUOTE]

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