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Message: <blockquote data-quote="rferrieri" data-source="post: 2702117" data-attributes="member: 114565">Manual IS settingI have a question for you guys that are using Olympus equipment with onboard camera IS.  When you set the IS manually for legacy lens (or in this case for the telescope) do you need to take into account the 2x cropping factor of the Olympus sensor?  For example, I use a 380mm refractor + x1.4TC for a focal length of 532mm.  If you take into account the sensor size the effective focal length is 1064mm.  The manual adjustment of the Olympus IS is 1000mm.  So do I dial in 500 or 1000mm for best compensation.  I too have found better results with a free floating head arrangement rather than locking everything down and using remote shutter triggering.  Rich</blockquote>