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<blockquote data-quote="poisonborz" data-source="post: 503423" data-attributes="member: 40960">No need to spin your thoughts, the problem was found!&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp; Yesterday this issue occured again. Today I went to the vendor, and&nbsp; we finally figured out what was the root cause - which can be important&nbsp; warning for everyone new to recent DSLRs like me. When I changed lens, I&nbsp; naturally thought you had to press the eject button when you place back&nbsp; the new lens too. WRONG.&nbsp;(At least on the D7200) pressing the eject button while you insert the lens will cause the lens to screw in deeper than necessary.&nbsp; It won't &quot;click&quot;, the AF pin will not connect. Worst thing is that the&nbsp; aperture will work, you'll be able to take pictures, the body recognizes&nbsp; the lens, but will think it has no AF capability and turn itself to&nbsp; manual only mode (without any notification or warning apparently). All DSLRs have a satisfying click when the lens is&nbsp; inserted. It's not enough to just feel a thud and you can't rotate&nbsp; anymore. Press the eject button only when removing the lens.</blockquote>

[QUOTE="poisonborz, post: 503423, member: 40960"] No need to spin your thoughts, the problem was found! Yesterday this issue occured again. Today I went to the vendor, and we finally figured out what was the root cause - which can be important warning for everyone new to recent DSLRs like me. When I changed lens, I naturally thought you had to press the eject button when you place back the new lens too. WRONG. (At least on the D7200) [B]pressing the eject[/B] [B]button[/B] [B]while you insert the lens will cause the lens to screw in deeper than necessary[/B]. It won't "click", the AF pin will not connect. Worst thing is that the aperture will work, you'll be able to take pictures, the body recognizes the lens, but will think it has no AF capability and turn itself to manual only mode (without any notification or warning apparently). All DSLRs have a satisfying click when the lens is inserted. It's not enough to just feel a thud and you can't rotate anymore. Press the eject button only when removing the lens. [/QUOTE]

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