IS mechanism does not 'lock' when detaching from body: Canon SLR Lens Talk Forum: Digital Photography Review

IS mechanism does not 'lock' when detaching from body

Started Apr 3, 2022 | Questions

RichardWaters • Forum Member • Posts: 52

IS mechanism does not 'lock' when detaching from body

Apr 3, 2022

I am lucky enough to have a Canon R6, often with an EF 500mm IS f/4 ii attached (via a Canon EF-RF adaptor).

When I disconnect the lens (either turning camera off first or not), the IS mechanism in the lens doesn't 'lock', so sounds loose. If I then reconnect the lens, it straightaway locks.

Am I doing something wrong, as I'd have thought, especially if I turn the R6 off, it would lock the IS in the lens?

Thanks in advance for help!

Richard

ANSWER:

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Canon EOS R6

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Ray UK • Contributing Member • Posts: 977

Re: IS mechanism does not 'lock' when detaching from body

In reply to RichardWaters • Apr 4, 2022

How do know it hasn't locked, some lenses especially those with internal focusing will rattle when they are shaken.

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BlueRay2 • Forum Pro • Posts: 14,816

Re: IS mechanism does not 'lock' when detaching from body

In reply to RichardWaters • Apr 4, 2022

RichardWaters wrote:

I am lucky enough to have a Canon R6, often with an EF 500mm IS f/4 ii attached (via a Canon EF-RF adaptor).

When I disconnect the lens (either turning camera off first or not), the IS mechanism in the lens doesn't 'lock', so sounds loose. If I then reconnect the lens, it straightaway locks.

Am I doing something wrong, as I'd have thought, especially if I turn the R6 off, it would lock the IS in the lens?

Thanks in advance for help!

Richard

what do you mean by "locking IS"? i use my canon 600 f4 mk2 (or several other IS lenses) on my dslrs and never paid any attention to locking IS being any issue.

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WongRQ • Contributing Member • Posts: 882

Re: IS mechanism does not 'lock' when detaching from body

In reply to RichardWaters • Apr 4, 2022

RichardWaters wrote:

I am lucky enough to have a Canon R6, often with an EF 500mm IS f/4 ii attached (via a Canon EF-RF adaptor).

When I disconnect the lens (either turning camera off first or not), the IS mechanism in the lens doesn't 'lock', so sounds loose. If I then reconnect the lens, it straightaway locks.

Am I doing something wrong, as I'd have thought, especially if I turn the R6 off, it would lock the IS in the lens?

Thanks in advance for help!

Richard

Have you tried turning the Image Stabiliser off before detaching?

I’ve heard of something similar but with a SIGMA lens, a third party lens. But it may apply for the same lens as well.

I’m thinking that doing so may lock the IS as the IS is turned off.

WongRQ's gear list:WongRQ's gear list

Canon EOS 7D Canon EOS 600D Canon EF-S 18-135mm F3.5-5.6 IS Sigma 150-600mm F5-6.3 | C

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BlueRay2 • Forum Pro • Posts: 14,816

Re: IS mechanism does not 'lock' when detaching from body

In reply to WongRQ • Apr 4, 2022

WongRQ wrote:

RichardWaters wrote:

I am lucky enough to have a Canon R6, often with an EF 500mm IS f/4 ii attached (via a Canon EF-RF adaptor).

When I disconnect the lens (either turning camera off first or not), the IS mechanism in the lens doesn't 'lock', so sounds loose. If I then reconnect the lens, it straightaway locks.

Am I doing something wrong, as I'd have thought, especially if I turn the R6 off, it would lock the IS in the lens?

Thanks in advance for help!

Richard

Have you tried turning the Image Stabiliser off before detaching?

I’ve heard of something similar but with a SIGMA lens, a third party lens. But it may apply for the same lens as well.

I’m thinking that doing so may lock the IS as the IS is turned off.

canon doesn't suggest anything regarding "IS locking" in its instruction books for big white primes or other zooms with IS.

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Messier Object • Forum Pro • Posts: 12,711

Re: IS mechanism does not 'lock' when detaching from body

In reply to RichardWaters • Apr 5, 2022

these references may be helpful

Canon CORRECTING THE RATTLING SOUND IN AN IS LENS

All that’s needed is to re-mount the lens, turn the camera on, and then tap the shutter button halfway down to start Image Stabilization again. Now, just remove your finger from the shutter button, wait a few seconds for the camera’s meter to turn off automatically (IS simultaneously turns off), and you’ll hear the IS system lock and center the elements with a familiar soft “click” sound within the lens. Now, remove the lens normally and, assuming the lens is otherwise in proper operating condition, you won’t hear the rattle any more!

Avoiding this problem with certain IS lenses is simple: just wait for the IS system to lock and center the elements before you remove a lens from the camera body. Normally, this happens six seconds after you remove your finger from the shutter button (if you haven’t just taken a picture) or two seconds after taking the most recent picture. Turning the camera OFF via its main On-Off switch will also allow the IS system to properly “park” the correction optics.

///

Lens Rentals Should I turn off IS before demounting a lens?

As a general practice, yes. If you have Image Stabilization activated on a lens, you’ll want to turn it off, wait three seconds, and then unmount the lens. Not doing this can potentially put the IS system in what we call an ‘unparked’ position, which means the optics are still floating, which could cause damage if shaken and jarred

Peter

Messier Object's gear list:Messier Object's gear list

Nikon Coolpix 990 Olympus C-5050 Zoom Olympus E-300 Olympus E-330 Olympus E-30 +31 more

selected answer This post was selected as the answer by the original poster.

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OP RichardWaters • Forum Member • Posts: 52

Re: IS mechanism does not 'lock' when detaching from body

In reply to RichardWaters • 10 months ago

Thanks for the feedback. I was generally having this happen when I was changing lenses on safari in Africa, and literally swapping within a few seconds from the EF 500 F/4 L IS II to the 70-200 f/2.8L IS II. It does sounds like, as I was swapping without waiting for the 6 seconds or so required to lock the IS, this is the reason I was getting the problem.

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Marquee • Regular Member • Posts: 407

Re: IS mechanism does not 'lock' when detaching from body

In reply to RichardWaters • 10 months ago

Sounds like a 100-500 could also solve your problem if you can live with the smaller aperture at 500mm: no more lens swapping!

Marquee's gear list:Marquee's gear list

Canon EOS 5D Mark IV Canon EF 100mm f/2.0 USM Canon Extender EF 1.4x II Sigma 50mm F2.8 EX DG Macro Canon TS-E 24mm f/3.5L II +4 more

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Storms Stork • New Member • Posts: 1

Re: IS mechanism does not 'lock' when detaching from body

In reply to RichardWaters • 1 month ago

I had exactly the same issue with the EF 500mm IS f/4 II on the EOS R5 but managed to resolve this via a camera firmware update.

You will normally hear a soft click in your lens when the IS element parks, for example when switching off the camera. However, with the 1.3.1 firmware installed on the R5 (I believe the version is the same for the R6), it does not always seem to park the IS. For example, when the viewfinder blanks after the camera is left idle there is no audible click in the lens. You may here some ratlling from the lens if something is loose or broken when moving the lens.

However, with the latest 1.7.0 firmware installed on the R5 it does park the IS when camera is left idle (confirmed by the audible click in the lens and no rattling when moving the lens). If you have not already done so, I would recommend upgrading your camera firmware to the latest version available on the Canon website.

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