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Message: <blockquote data-quote="Tord" data-source="post: 2945385" data-attributes="member: 40738">Hi,This is another update on the IS subject.Updated the EM5 to FW 2.0 and went out on a photo session, weather was nice though a bit windy. <ol> <li data-xf-list-type="ol">Started with the TL APO 80mm F/6. Set FL to 500. Used with tripod, floating head, also beanbag as well as some shots handheld. IS worked as it should, no vibrations, stabilized image in EVF/LCD. </li> <li data-xf-list-type="ol">Next some longe range pictures with the TS 102mm F/7. Set FL to 800. Used with tripod, floating head. Vibrations started to appeared, followed by IS disengaging. Adjusted FL to 600, which helped a bit but still vibrations and disengaging IS. Set FL to 500, still some vibrations, IS disengaging sometimes, sometimes not.  </li> <li data-xf-list-type="ol">Next the SW 80mm F/7.5 (600mm). Set FL to 600. Tripod, floating head. No signs of vibrations, IS working as it should for 2 hours.</li> </ol>Taking out battery, changing batteries did not help. Did not reset the camera between change of scope. Could it be that the weight/inertia plays an important role in how the IS performs? The TS102 + adapter & CNC rings weighs more than 6 kg, the TL 80 and SW 80 around 2.5 kg. I will probably stick to using the E5 with the TS102 moving forward. /Tord</blockquote>