User_3607948

<p>Yea ... I know "lose" not "loose"</p>

<p>Justin,</p> <p> Much like the differences with PQ and non-PQ lens the extension tube differ. The ones with full compatibility have System Rolleiflex 6000 printed on the extension tube. You can use the other tubes but loose the fully automatic feature of the camera/PQ lens. <br> The contacts have very tiny springs that flex during lens mounting, subsequently making contact between lens & body. Check that all the contacts are at the same height both body side and lens side plus move freely.</p> <p>Joe</p>

<p>Adriano,</p> <p>AF-S lens use internal motors in the lens itself controlled electronically from the camera. Other AF lens <em>focus mechanically from a motor in the camera</em> body. The camera body motor engages the lens drive coupling when set to AF on the camera thus the reason you cannot turn - should not turn - the focus ring on the AF-D lens. If you set the lens to M but leave the camera set to AF it engages the camera motor allowing it to turn with focus ring. That could lead to damage if the camera motor is forced to turn so the caution in the manual.</p> <p>Remove a lens from 7100 and check the camera mounting flange (comparing to the 3200 if you still have it) and you'll see the slot for the camera-to-lens motor.<br> Joe </p>

<p>I'd suggest searching the web for a tear-down of any camera or electronics in general. The design of many current, electronic devices precludes problems with trace amounts of water. While not waterproof most devises should work normally. Not guaranteed but generally highly reliable.<br> <br />I'd guess the most vulnerable portion of a camera is the lens mount. Plus, dousing in water so don't wash in the kitchen sink!</p> <p>Joe</p>