topic Re: EOS R6 mark II bad focus help! in EOS DSLR & Mirrorless Cameras

EOS R6 Mark II bad focus help!

Jaanieh — Thu, 20 Nov 2025 12:55:33 GMT

Hi! I recently bought a Canon EOS R6 mark II and was super excited! Today I went outside to do a photoshoot. The result is terrible, the focus is not sharp at all. Im using an EF-R adapter marked Canon and a Canon 24-70 2.8 USM, i have also tried with different lenses and cleaned the glass of the lenses. I have not missed focus since the focus point is viewed where i want it to be (at the persons face). Settings were 1/250, f/ 2.8 iso 100.
Anyone know what the issue could be? I spent my life savings on this camera :'(

Re: EOS R6 mark II bad focus help!

Anonymous — Wed, 19 Nov 2025 11:49:07 GMT

Nothing seems in focus, did the lens or camera fog up in the cold?
Try taking pictures in a controlled environment(indoors, tripod etc.) to see if there's a real problem with the equipment.

Re: EOS R6 mark II bad focus help!

Waddizzle — Wed, 19 Nov 2025 12:54:48 GMT

“ Settings were 1/250, f/ 2.8 iso 100. “

Tell us about your AF settings.

Re: EOS R6 mark II bad focus help!

Jaanieh — Wed, 19 Nov 2025 13:06:18 GMT

1-point AF with eyetracking

Re: EOS R6 mark II bad focus help!

Jaanieh — Wed, 19 Nov 2025 13:07:10 GMT

It was on a tripod at this shoot! But i will try indoors to see if there's any difference

Re: EOS R6 mark II bad focus help!

jrhoffman75 — Wed, 19 Nov 2025 13:21:28 GMT

@Jaanieh wrote:

Hi! I recently bought a Canon EOS R6 mark II and was super excited! Today I went outside to do a photoshoot. The result is terrible, the focus is not sharp at all. Im using an EF-R adapter marked Canon and a Canon 24-70 2.8 USM, i have also tried with different lenses and cleaned the glass of the lenses. I have not missed focus since the focus point is viewed where i want it to be (at the persons face). Settings were 1/250, f/ 2.8 iso 100.
Anyone know what the issue could be? I spent my life savings on this camera :'(

Can you post the original file(s) (preferably RAW) to Drop Box or OneDrive so we can examine it/them?

Re: EOS R6 mark II bad focus help!

jrhoffman75 — Wed, 19 Nov 2025 13:26:15 GMT

@Anonymous wrote:

Nothing seems in focus, did the lens or camera fog up in the cold?
Try taking pictures in a controlled environment(indoors, tripod etc.) to see if there's a real problem with the equipment.

Fogging would typically occur when cold lens is brought indoors (moisture condenses on cold lens).

But I agree that a controlled test eliminating as many variables as possible possible is best.

Indoors on tripod with camera set at green square Auto.

Re: EOS R6 mark II bad focus help!

Jaanieh — Wed, 19 Nov 2025 13:58:46 GMT

Here is a link with raw files https://drive.google.com/drive/folders/16OvUAl6EGrEUl5jUMyEaDktXxtS5nex9?usp=sharing

I tested a bit indoors, it seems to be more of an issue when i zoom in. On prime lenses it sure is better. I mostly use my 24-70 for concert photography and if i cant zoom its not very useful, it should not be like this right?

Re: EOS R6 mark II bad focus help!

jrhoffman75 — Wed, 19 Nov 2025 14:27:21 GMT

@Jaanieh wrote:

Here is a link with raw files https://drive.google.com/drive/folders/16OvUAl6EGrEUl5jUMyEaDktXxtS5nex9?usp=sharing

I tested a bit indoors, it seems to be more of an issue when i zoom in. On prime lenses it sure is better. I mostly use my 24-70 for concert photography and if i cant zoom its not very useful, it should not be like this right?

There is no fundamental reason why you should have a problem using an EF lens with adapter. I have the R6M2 and shot hundreds of images with EF 70-300L lens with Canon adapter and had no issues, so we should be able to get to the bottom of this. Just need to look for potential issues.

One image you missed the face.

I see you have Continuous AF enabled. Unless there is a special reason you are selecting it you should disable it; real waste of battery power.

You were on a tripod. Does the lens have IS; was it enabled? That can sometimes be an issue; try disabling it.

You had Servo enabled. If camera and subject were stationary One Shot AF should be OK to use.

You tried other EF lenses and they were OK? Can you try the zoom lens on an EF body to rule out a lens problem?

Re: EOS R6 mark II bad focus help!

TomRamsey — Wed, 19 Nov 2025 14:34:11 GMT

Could you list all of your AF settings? This camera has a lot of different setting for AF and it is possible that something is in conflict. I know I can't use the same settings for a landscape as I would for wildlife. Setting it AF up for yourself is an important step.

Re: EOS R6 mark II bad focus help!

deebatman316 — Wed, 19 Nov 2025 14:46:48 GMT

I have a couple more questions. When you say “Canon marked adapter” is this the OEM mount adapter. Or is this a 3rd Party mount adapter. Also list the full names of all lenses you own. Some lenses have multiple versions so the exact name is needed. Not every EF lens supports all features of EOS R series cameras. Only the newest EF lenses do which were released in or after 2009. Example lenses are below to identify your lens model.

Re: EOS R6 mark II bad focus help!

Jaanieh — Wed, 19 Nov 2025 16:05:09 GMT

Yes, i missed the face at one of them, but the other one still has that weird "glow".

I have Continuous AF enabled because i mostly shoot concerts.
The Lens is a Canon 24-70 2.8 L USM so i dont think it has IS, no button for it.

I have tried 2 prime lenses, they were better but not perfect. I have tried another zoom lens, a Sigma 70-300 which have the same issue when zoomed.

I have tried both zoom lenses on the EF body and do not get the same issue. I had a similar problem with my Canon EOS RP camera, that the images werent sharp, thats why I thought maybe it was the adapter.

The adapter have the Canon mark and says "mount adapter ef-eos R", and nothing more (it was a gift so i dont have a box or any other information about it)

Re: EOS R6 mark II bad focus help!

Jaanieh — Wed, 19 Nov 2025 16:10:38 GMT

Unfortunately i can not list all of my AF settings, as i just got this camera and i dont know them all yet. I have not changed alot since i got it, brand new with fabric settings.

Re: EOS R6 mark II bad focus help!

jrhoffman75 — Wed, 19 Nov 2025 16:13:49 GMT

Numerous folks have reported issues when using a non-Canon brand adapter. If you have access to a camera store maybe you can try the Canon product and see if it resolves your issue.

Continuous autofocus essentially means the shutter button is always half-pressed. The camera will be constantly looking to find something to focus on.

Re: EOS R6 mark II bad focus help!

deebatman316 — Wed, 19 Nov 2025 16:15:42 GMT

If that’s the EF Mount version it never had IS. If it’s the original version it is NOT fully compatible with your camera. The AF motor is just too slow to keep up with your camera. I would also disable preview/ continuous af not only is it a drain on the battery. But older lenses aren’t designed for the AF to be constantly active. It’s also not compatible with the highly advanced AF system found in EOS R series cameras. These older lenses aren’t designed for eye detect af or high fps shooting. Cameras at the time couldn’t shoot 12 fps or support eye af. That’s because those features didn’t exist at the time of release. So I would turn off those features. The lens is not compatible with those features.

Re: EOS R6 mark II bad focus help!

Waddizzle — Wed, 19 Nov 2025 16:28:59 GMT

I don’t recommend using the H+, high speed, drive mode with any EF mount, adapted lenses. They simply cannot refocus fast enough.

Could you take a screenshot of this menu screen? Please, thanks. I also recommend these settings for use with older DSLR lenses.

Re: EOS R6 mark II bad focus help!

jrhoffman75 — Wed, 19 Nov 2025 16:31:59 GMT

I think you want high speed continuous shooting, not continuous autofocus.

Re: EOS R6 mark II bad focus help!

Jkarl — Wed, 19 Nov 2025 16:34:44 GMT

Would you have access to a RF lens to see if using it helps?

Re: EOS R6 mark II bad focus help!

Jaanieh — Wed, 19 Nov 2025 16:46:04 GMT

Thankyou for all the answers and tips!

I do not have access to a RF lens, but I will contact a camera store to see if I can try a different adapter.
And unfortunately it sounds like i have to buy a new 24-70 lens aswell, i really didnt wanna have to do that.

thanx!

Re: EOS R6 mark II bad focus help!

Waddizzle — Wed, 19 Nov 2025 16:57:05 GMT

“ 1-point AF with eyetracking. “

You probably don’t need a new lens.

I like John’s suggestion to test the camera in Intelligent Auto mode, Green [A+] mode. Doing so takes any settings changes that you might have made off the table,

Before you enable a Zone AF mode, go back to 1-pt AF and select the Center AF point. This seems to define an Initial AF Tracking Point.