https://community.usa.canon.com/t5/EOS-DSLR-Mirrorless-Cameras/EOS-M3-Viewscreen-Not-Updating/m-p/329172#M76429 Ah, too easy - it was the ISO - somehow it was set to Automatic.<BR />This is something that I've noticed with the M3 - it has Gremlins. Every now and then it will just do something weird when unattended.<BR /><BR />I've updated the firmware and all that to no avail. I have come to think of it as having a personality. Sun, 27 Dec 2020 09:56:46 GMT Ashthatiscalled 2020-12-27T09:56:46Z https://community.usa.canon.com/t5/EOS-DSLR-Mirrorless-Cameras/EOS-M3-Viewscreen-Not-Updating/m-p/329171#M76428 <P>The viewscreen on my Eos M3 has stopped reflecting changes made to Aperture and Shutter Speed in Manual mode.</P><P>Any advice on steps to take to remedy the problem?</P> Thu, 01 Dec 2022 21:18:15 GMT https://community.usa.canon.com/t5/EOS-DSLR-Mirrorless-Cameras/EOS-M3-Viewscreen-Not-Updating/m-p/329171#M76428 Ashthatiscalled 2022-12-01T21:18:15Z https://community.usa.canon.com/t5/EOS-DSLR-Mirrorless-Cameras/EOS-M3-Viewscreen-Not-Updating/m-p/329172#M76429 Ah, too easy - it was the ISO - somehow it was set to Automatic.<BR />This is something that I've noticed with the M3 - it has Gremlins. Every now and then it will just do something weird when unattended.<BR /><BR />I've updated the firmware and all that to no avail. I have come to think of it as having a personality. Sun, 27 Dec 2020 09:56:46 GMT https://community.usa.canon.com/t5/EOS-DSLR-Mirrorless-Cameras/EOS-M3-Viewscreen-Not-Updating/m-p/329172#M76429 Ashthatiscalled 2020-12-27T09:56:46Z