topic Re: Lens IS never stops actively running on R7 in EF & RF Lenses

EF 24–105mm f/4L IS II USM Lens IS never stops actively running on R7

Menocu — Wed, 03 Dec 2025 04:21:43 GMT

I just received a new R7 + EF-R Adapter, and am noticing that the lens IS on my EF24-105L is continuously active instead of just while depressing the shutter. This is my first mirrorless camera but this doesn't seem normal.

I have disabled all forms of of IBIS to rule that out as a conflict.

Is this a defect?

Re: Lens IS never stops actively running on R7

stevet1 — Wed, 03 Dec 2025 03:35:11 GMT

Menace,

I think that this normal behavior. That's why they advise people to turn off the IS on their lens when using a tripod. It's because the lens is constantly trying to compensate for a vibration that isn't there.

Steve Thomas

Re: Lens IS never stops actively running on R7

Menocu — Wed, 03 Dec 2025 04:29:42 GMT

I appreciate the feedback. Every Canon camera I've used with this lens previously would engage the lens IS only while pressing the shutter button, rather than "constantly" and that's the source of my confusion/concern when I'm hearing it run continuously. Seems like battery usage is going to be a lot higher with IS running unnecessarily at all times.

Re: EF 24–105mm f/4L IS II USM Lens IS never stops actively running on R7

shadowsports — Wed, 03 Dec 2025 04:34:39 GMT

Greetings,

Please check if you have continuous autofocus enabled. This could be what you're hearing.

Re: EF 24–105mm f/4L IS II USM Lens IS never stops actively running on R7

Menocu — Wed, 03 Dec 2025 05:48:05 GMT

Turning off autofocus entirely doesn't stop the sound but turning off the lens's IS does.

You can hear the sound I'm referring to in the following thread in which you made the same suggestion but acknowledged that it didn't sound like AF:

https://community.usa.canon.com/t5/EF-RF-Lenses/New-RF70-200-2-8-Making-Continuous-Water-Running-Noise-When/td-p/575011

Re: EF 24–105mm f/4L IS II USM Lens IS never stops actively running on R7

p4pictures — Wed, 03 Dec 2025 13:09:07 GMT

EOS R-series cameras work differently to the DSLR cameras. If the lens has IS it is operating all the time the camera is switched on by design. If you turn off the lens IS with the switch on the lens then the IS will not be active.

Secondly, when a lens with Image Stabiliser and a switch to turn IS on/off then the camera IBIS setting is not possible to select, and will match the lens IS switch. So lens IS ON = IBIS also ON. Lens IS OFF = IBIS also OFF.

You cannot have the lens IS OFF and IBIS ON.

All EF lenses with IS have a switch on the lens to select IS on/off.

Some of the RF lenses that have IS do not have the switch, then the camera menu is used to switch lens IS on/off.

In the case of my EOS R10 which has no IBIS then the kit RF-S 18-150mm IS lens has no switch, so a menu item appears allowing me to switch IS on/off.

In the case of your EOS R7 which does have IBIS, then the IS setting in the camera menu would switch the RF-S lens IS on at the same time as the IBIS.

Re: EF 24–105mm f/4L IS II USM Lens IS never stops actively running on R7

Menocu — Wed, 03 Dec 2025 16:14:51 GMT

"EOS R-series cameras work differently to the DSLR cameras. If the lens has IS it is operating all the time the camera is switched on by design. If you turn off the lens IS with the switch on the lens then the IS will not be active."

This is the information I was seeking. Thank you for your time!