NO EFCS in M6 II: a real shame

I can confirm that shutter shock is a serious issue at some shutter speed.

This is an example of my tests with the 15-45mm. It's mostly the same story with the 55-200 and the 28mm macro.

EF-M 15-45mm at 45mm, f/6.3 , 1/80s. E-shutter on the left. On tripod with delay.

Is adding EFCS option via firmware update possible? Is it hardware related at all?

If it is possible, I really wish M6 II owner can contact Canon via phone and emails and give them the complain. Just maybe, they might add it.

I know this is 2022 already and a update seems very unlikely. But I really think this is not acceptable because: every other EOS M has EFCS; the lack of EFCS is never informed.

wddxnyr wrote:

I can confirm that shutter shock is a serious issue at some shutter speed.

This is an example of my tests with the 15-45mm. It's mostly the same story with the 55-200 and the 28mm macro.

EF-M 15-45mm at 45mm, f/6.3 , 1/80s. E-shutter on the left. On tripod with delay.

Is adding EFCS option via firmware update possible? Is it hardware related at all?

If it is possible, I really wish M6 II owner can contact Canon via phone and emails and give them the complain. Just maybe, they might add it.

I know this is 2022 already and a update seems very unlikely. But I really think this is not acceptable because: every other EOS M has EFCS; the lack of EFCS is never informed.

Did you turn the IS OFF on tripod with the mechanical shutter?

In reading up in this, I understand it to not be true shutter shock, but rather the small IS assembly in image stabilized lenses. Even with the IS off and mounted on a tripod, it’s essentially held in place by springs and so it can impact image quality at shutter speeds between 1/10th and 1/200th on both the 15-45 and the 55-200. I have not seen tests on the 18-150.

Non-stabilized lenses like the 32 f/1.4 do not suffer from the issue at any shutter speed.

https://www.canonnews.com/canon-eos-m6-mark-ii-analysis-of-shutter-shock

wddxnyr wrote:

I turned off IS in all my tests.

ok, good to know

just for your info:

I tested my 100L that has 4 stop IS -- and there is no shutter shock on my M6Ii at ss 1/60 and 1/80 and above -- the better IS systems  -- heavier and more robust like the 100L are not as impacted is my conclusion

It is the small stuff with IS and rubber bands...

It is these smaller IS system in the m zooms that can be impacted

My 55-250 stm I tested has shutter shock at 1/60 and 1/80 but is fine ss 1/100 and above

I'd just say -- know your gear  -- and switch to e-shutter when in the impacted range

generally, with motion I switch to mechanical and ss 1/180 and above

with static subjects -- e-shutter on m6II is a big benefit

Just to add a bit, e-shutter should be fine except in certain lighting where banding can be an issue.

If you’re in circumstances were distortion from rolling shutter is and issue due to motion, you probably want higher shutter speeds anyway, where shutter shock will cease to matter.

That said, I agree that the top of the line M camera should have EFCS as an option.  Then there’s the opposite complaint with the RP where full mechanical isn’t an option, silent shutter is only available in a scene mode (unless you use a focus bracket work around trick), otherwise it’s only EFCS.

wddxnyr wrote:

For this specific feature, I much prefer Sony's implementation. Their apsc sensors are also quite slow, but Sony still allows it. Having this option is certainly better than no option.

Having e-shutter that goes up to 1/16,000 rocks

i don’t think the m50II is a good solution for 1.4 primes in direct sunlight where you would need an ND filter

my RP has the problem of cut off bokeh with F1.4/1.2 primes above ss of 1/1000 starts to become noticeable

so even though there are some considerations when using m6II -  I’ll take it for the positives

On page 302 of my camera manual, in the section on "non-Canon flash units", it says "when shooting with an external Speedlight, set Shutter Mode to an option other than Electronic."

I found that phrasing interesting. As of firmware 1.1.1  the only Shutter Mode options are "Mechanical" and "Electronic", so why not say "set Shutter Mode to Mechanical" - unless you were allowing for a third option, perhaps to be introduced in a future firmware update?

I'm not excited by the prospect for two reasons: 1) the M6 Mk2 is already long in the tooth, so if it were to happen it probably would have happened by now, and 2) EFCS is overrated, IMO.

Don’t get too excited. Generic language so they can copy and paste to all their camera manuals regardless of mechanical or EFCS.

wddxnyr wrote:

This is an example of my tests with the 15-45mm. It's mostly the same story with the 55-200 and the 28mm macro.

EF-M 15-45mm at 45mm, f/6.3 , 1/80s. E-shutter on the left. On tripod with delay.

What is this? A photograph of a video screen? A photograph of a screen-printed target? Or what?

I'm pretty sure this is not a valid comparison of two images.

It's oddly blocky. (Not pixelated, but blocky.) And the one on the right has noticeable lateral chromatic aberration. A mechanical shutter does not create chromatic aberration. The photo on the right was not created in the same way as the one on the left, and was apparently not centered in one or another lens that was used to make the photo. We don't even know if it was in focus.

I know the EF-M 15-45 is subject to shutter shock. I have written about it myself. But this is not very good evidence either way.

By the way, there is an easy way to mitigate the shutter shock. I don't routinely bracket exposures any more. Thanks to the live 3-color histogram, that is less necessary than it used to be. And for action photos with a repeating shutter, I would use high shutter speeds anyway, and the shutter shock is not visible at high speeds.

I wish the shock were not there, but it's not the only camera ever to suffer from this problem. Some very expensive flagship cameras have suffered from serious to severe vibrational artifacts in recent years.

I checked a number of manuals, including the M50, R, R6 and 90D. The only one with that verbiage was the 90D. Since it's a close cousin to the M6 II (same image processing electronics, and released at the same time) I'm not surprised.

What is interesting is that the 90D does have 3 shutter modes, including EFCS. I wonder why Canon chose not to implement that firmware code in the M6 II? Cost would have been negligible I would think. Were they afraid of the M6 II cannibalizing 90D sales?

Greg Zillgitt wrote:

I checked a number of manuals, including the M50, R, R6 and 90D. The only one with that verbiage was the 90D. Since it's a close cousin to the M6 II (same image processing electronics, and released at the same time) I'm not surprised.

What is interesting is that the 90D does have 3 shutter modes, including EFCS. I wonder why Canon chose not to implement that firmware code in the M6 II? Cost would have been negligible I would think. Were they afraid of the M6 II cannibalizing 90D sales?

https://media.the-digital-picture.com/Sounds/Canon-EOS-90D.mp3

https://media.the-digital-picture.com/Sounds/Canon-EOS-90D-Burst.mp3

https://media.the-digital-picture.com/Sounds/Canon-EOS-M6-Mark-II.mp3

https://media.the-digital-picture.com/Sounds/Canon-EOS-M6-Mark-II-Burst.mp3

they probably are different shutters

MAC wrote:

Greg Zillgitt wrote:

I checked a number of manuals, including the M50, R, R6 and 90D. The only one with that verbiage was the 90D. Since it's a close cousin to the M6 II (same image processing electronics, and released at the same time) I'm not surprised.

What is interesting is that the 90D does have 3 shutter modes, including EFCS. I wonder why Canon chose not to implement that firmware code in the M6 II? Cost would have been negligible I would think. Were they afraid of the M6 II cannibalizing 90D sales?

https://media.the-digital-picture.com/Sounds/Canon-EOS-90D.mp3

https://media.the-digital-picture.com/Sounds/Canon-EOS-90D-Burst.mp3

https://media.the-digital-picture.com/Sounds/Canon-EOS-M6-Mark-II.mp3

https://media.the-digital-picture.com/Sounds/Canon-EOS-M6-Mark-II-Burst.mp3

they probably are different shutters

Sounds like EFCS on the 90D.  Single click vs double click on the M6II.  What does full mechanical sound like?