topic Re: Canon R6 II: spot on sensor will not go away in EOS DSLR & Mirrorless Cameras

EOS R6 II: spot on sensor will not go away

duceduc — Sun, 20 Jul 2025 12:47:13 GMT

Hello. I noticed this spot on the bottom left corner won't go away after several swab cleaning. I have a feeling this spot has been there since I purchased the body back in Feb and have not noticed since it is in the corner of frame.

I have cleaned the lens with camera wipes and the camera sensor using 24mm swab with cleaner a few times. I use the swab one time only and have done it 3 times. Should I bring it in to Canon to have a look?

Re: Canon R6 II: spot on sensor will not go away

shadowsports — Sun, 20 Jul 2025 10:33:06 GMT

Greetings ,

Maybe it's because I'm on my mobile device but I'm not seeing a.dot. Can you put an arrow or a little circle around it for us please.

Re: Canon R6 II: spot on sensor will not go away

duceduc — Sun, 20 Jul 2025 10:40:33 GMT

Ok. I cannot edited the post anymore. Here it is again.

Re: Canon R6 II: spot on sensor will not go away

shadowsports — Sun, 20 Jul 2025 12:24:04 GMT

Thanks. I saw that but wasn't sure If that was what you were referring to. Do you have another lens to test with? That should confirm with certainty if the issue is with the camera or a lens.

Re: Canon R6 II: spot on sensor will not go away

jrhoffman75 — Sun, 20 Jul 2025 12:45:10 GMT

Stop the lens down to f/16 and take a shot of clear sky. If it is a sensor spot they usually become more distinct at small apertures (due to light rays becoming more parallel).

Re: EOS R6 II: spot on sensor will not go away

duceduc — Sun, 20 Jul 2025 14:44:42 GMT

It’s definitely from the body. I have 2 lenses & it appears on both. Also, I can see it in the digital viewfinder.

Re: EOS R6 II: spot on sensor will not go away

shadowsports — Sun, 20 Jul 2025 15:30:09 GMT

Greetings,

@John made an excellent suggestion. However, now that you've tested with two lenses, cleaned the sensor still see the same anomaly, I'd want to have Canon look at it.

Please create or log in or into your MyCanon account. Register the camera and initiate a inspection/repair request.

MyCanon https://share.google/bzON2qz8topPHg4Uc

If you're shipping your camera in, make sure you package it well and insure it.

Re: EOS R6 II: spot on sensor will not go away

duceduc — Mon, 21 Jul 2025 00:19:31 GMT

Edit: I looked more carefully under a bright white light and I do see something on the top corner. Should I do the swab again or take it in to have Canon inspect it?

Here is a shot at f40. Looks like a grim of some sort. I tried to visually spot it with the naked eye, but can't see it. Since the anomaly is on the bottom left of the photo, I assume it should be located on the top left corner when looking directly at the sensor??

Re: EOS R6 II: spot on sensor will not go away

jrhoffman75 — Mon, 21 Jul 2025 00:13:42 GMT

Looks like there is a new particle on sensor. They are very easy to remove in post, so if it was me I wouldn’t be trying multiple sensor cleanings by touching the sensor. Could do more harm than good. If a rocket blower can’t remove it I would leave it.

Re: EOS R6 II: spot on sensor will not go away

FloridaDrafter — Mon, 21 Jul 2025 18:59:46 GMT

Did your sensor swabs come with sensor cleaning fluid? If so, did you use it?

Cleaning solution has always been my last resort, but I have had to use it before on my DSLR's. I put a drop on the swab, then use an old swab with a PEC-PAD attached to remove any residue. You can use a little pressure but still need to use a light touch.

For whatever reason, I haven't had to swab the sensor on my MILC's (3 years now). Usually the built in cleaning operation and a Rocket blower works, but I have had to use a sensor brush a few times.

Newton

Re: EOS R6 II: spot on sensor will not go away

duceduc — Mon, 21 Jul 2025 19:30:42 GMT

Yes, the swab kit comes with cleaning bottle. I applied the solution on one side of the swab with a swooping motioning once each side of the swab over the sensor. I cleaned the sensor 3 times.

Re: EOS R6 II: spot on sensor will not go away

normadel — Mon, 21 Jul 2025 19:35:14 GMT

Wow. I have excellent vision. I don't see anything on any of these photos.

Re: EOS R6 II: spot on sensor will not go away

duceduc — Sat, 02 Aug 2025 10:39:21 GMT

Update: I have brought the camera in to Canon to have the sensor cleaned. A week past and they have performed the cleaning. However, they were not able to remove the foreign particle.

I have requested to have this repair. Another service order has been issued and it will take about 3 weeks time. What a bummer. I was looking forward to take the camera on my Hokkaido trip.

Re: EOS R6 II: spot on sensor will not go away

FloridaDrafter — Sat, 02 Aug 2025 15:39:54 GMT

@duceduc wrote:

Update: I have brought the camera in to Canon to have the sensor cleaned. A week past and they have performed the cleaning. However, they were not able to remove the foreign particle.

I have requested to have this repair. Another service order has been issued and it will take about 3 weeks time. What a bummer. I was looking forward to take the camera on my Hokkaido trip.

Try the "Dust delete data" function in your camera, fourth option in the shooting 5 menu. It's described, starting on page 282, of your R6 mark II manual. This will walk you through making a map that can be applied to your shots.

Newton