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RF 85mm f2 macro lens idle noise

Started Dec 23, 2020 | Questions thread
JConrad Regular Member • Posts: 318
Re: RF 85mm f2 macro lens idle noise

IS (both in body, and in-lens) has elements that float.  IBIS and newer optical IS systems use the electromagnets that move the IS elements for stabilization to hold it steady in the center when the IS is off.  So the electromagnets are still operating (thus the subtle hum), but they aren't counteracting movement...just holding steady.

 JConrad's gear list:JConrad's gear list
Canon EOS R5 Canon RF 24-105mm F4L IS USM Canon RF 70-200mm F2.8L IS USM Fujifilm X100V Canon EOS RP +9 more
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