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<blockquote data-quote="GracieAllen" data-source="post: 550294" data-attributes="member: 41283">Week - a whole bunch.......Finally, after three phone calls to Kenko, and being told THREE TIMES that someone would test and get back to me, I talked to yet ANOTHER person today.&nbsp; He went and checked with the head of &quot;service&quot;, and informed me that - &quot;As far as we know, all the current extension tubes in our supply chain FULLY COUPLE with the currently available Nikon bodies.&quot;&nbsp; This would SEEM to me, to mean that they'd work with a D810 and/or a D7200 and any of that generation or older, and the autofocus would work...UNFORTUNATELY, the next part was:&nbsp; &quot;There's no upgrade, no firmware fix, no nothing if they don't.&nbsp; You'd just have to buy another set once they're upgraded to work with the new body.&quot;&nbsp; ...&nbsp; Oh...Which is somewhat concerning since the D500 recently dropped and since it uses a new autofocus system does this mean the CURRENT &quot;supply chain&quot; of Kenko extension tubes may as well be $40 Opteka tubes that don't autocouple on the most CURRENT D5, D500, etc bodies?&nbsp; If so, the short answer is &quot;You're screwed, 'cause the factory isn't going to do what Sigma is doing with firmware upgrades on their lenses so they work with the current Nikon bodies...If you're shooting completely static subjects and don't care about or want the autofocus to work (no focus stacking, no chasing moving subjects that are up close, etc), you should be fine.&nbsp; Otherwise, it's looking like it may be time to investigate other sources of extension tubes.&nbsp; Anybody got a brand of tubes that they can says ABSOLUTELY autocouple the autofocus on their Nikon D500 and/or D5?</blockquote>

[QUOTE="GracieAllen, post: 550294, member: 41283"] Week - a whole bunch....... Finally, after three phone calls to Kenko, and being told THREE TIMES that someone would test and get back to me, I talked to yet ANOTHER person today. He went and checked with the head of "service", and informed me that - "As far as we know, all the current extension tubes in our supply chain FULLY COUPLE with the currently available Nikon bodies." This would SEEM to me, to mean that they'd work with a D810 and/or a D7200 and any of that generation or older, and the autofocus would work... UNFORTUNATELY, the next part was: "There's no upgrade, no firmware fix, no nothing if they don't. You'd just have to buy another set once they're upgraded to work with the new body." ... Oh... Which is somewhat concerning since the D500 recently dropped and since it uses a new autofocus system does this mean the CURRENT "supply chain" of Kenko extension tubes may as well be $40 Opteka tubes that don't autocouple on the most CURRENT D5, D500, etc bodies? If so, the short answer is "You're screwed, 'cause the factory isn't going to do what Sigma is doing with firmware upgrades on their lenses so they work with the current Nikon bodies... If you're shooting completely static subjects and don't care about or want the autofocus to work (no focus stacking, no chasing moving subjects that are up close, etc), you should be fine. Otherwise, it's looking like it may be time to investigate other sources of extension tubes. Anybody got a brand of tubes that they can says ABSOLUTELY autocouple the autofocus on their Nikon D500 and/or D5? [/QUOTE]

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