topic EOS R6 Mark III vs EOS R6 Mark II, when video is not a priority in Gear Guide

EOS R6 Mark III vs EOS R6 Mark II, when video is not a priority

roweb — Wed, 29 Jul 2026 13:50:23 GMT

I'm getting into the Canon world and decided it'll be with a R6. I was aiming at the Mark II, but seeing some deals on the Mark III that are making me think if it's worth it.

I do take the occasional video, but I'm mainly a photography guy, so Open Gate and all that stuff is completely wasted on me (except maybe the 4K webcam functionality, which may be useful for work). I photograph a bit of everything, so there isn't a niche I really fancy. I need a jack-of-all-trades camera, whether it's for portraits, landscapes, aircraft, birds/squirrels, moon/night sky, indoors/outdoors... you get the point. It's one of the reasons why I'm going for a full-frame instead of APS-C.

This would be a slam dunk if the III was simply better than the II, but I keep hearing about tradeoffs without payoffs. "Low light is better on the II", "thermals are better on the II", "battery life is better on the II" and so on. Downsides are always "resolution is better on the III but you can't tell the difference", "autofocus is better on the III but you can't tell the difference". I don't know if it's really the case, or if the world is filled with fans of the II that keep hyping it up.

That led me to the current situation. I think the II would be enough for me, but on paper the 32mp and better autofocus could definitely be a nice addition when you're not into a niche. I also read the III has better customization options in the menus, which is something I always love, as I like setting things up my way. I don't mind spending a bit extra now if it's worth it, as I will keep this for years. I just want to avoid paying more for a similar or inferior product.

People who used both the II and the III, are you happy with the move?

Re: Canon R6 Mark III vs Canon R6 Mark II, when video is not a priority

March411 — Wed, 29 Jul 2026 11:20:08 GMT

I had the II and upgraded to the III and I would say that the research you have done is pretty accurate. I shoot low light and the low light performance on the II is definitely better. The AF and pre-capture are much better on the III. The menu on the III has some more options but I would say that the II fulfilled all my needs except a custom button for pre-capture.

Either is a good purchase. If you want the latest tech go with the III.

The II is a great camera and based on your post

Re: Canon R6 Mark III vs Canon R6 Mark II, when video is not a priority

roweb — Wed, 29 Jul 2026 11:44:21 GMT

I don't believe I'll use pre-capture a lot, if at all. But the autofocus part is important. I hate the feeling of having everything for a great shot, but the autofocus didn't work as anticipated. Do you feel it was worth the move for it, or do you regret the change?

Low light performance worries me a bit, as I do like to go for low light shots. I mean, liking it isn't the right way to express it, it's more I don't let low light stop me if I think I might get a good shot out of it. So I do tend to go for conditions that are far from optimal, just to see what I can get out of the camera.

Re: Canon R6 Mark III vs Canon R6 Mark II, when video is not a priority

March411 — Wed, 29 Jul 2026 12:38:06 GMT

I really liked the overall performance of the II, in low light the AF didn't tend to search. Not often but occasionally the III does search. When this happens I move to spot and the problem is solved. You didn't mention what your focus/genre of photography is but if if sports or wildlife falls into your wheelhouse the III is a definite upgrade.

I don't regret the change it was/is worth the added expense. I shoot macro and while the II did a OK job when I tried the AF I mostly use focus peaking and the guide and went manual. With the III the AF has been surprising very good in AF which has vastly improved my hit rate.

And the one item that rarely gets noted on the III is the color. This is subjective but where I really believe the III shines, SOOC the colors are more true to life

If you have the funds available I would say that the III is a good investment but either camera will serve you well.

If you shoot a lot of low light you will need to think about how you will denoise your images. I use PS/Camera Raw for post and the images clean up nicely but once you get past 12800 you'll notice some loss in detail.

I grabbed this image in some pretty dense timber with the III, lots of limbs and other stuff for the AF to pick up but the AF grabbed the eye and grabbed perfect focus straight up. I have several images from that day where the AF performance in dark, dense timber was perfect. It's about a 50% crop.

Re: Canon R6 Mark III vs Canon R6 Mark II, when video is not a priority

roweb — Wed, 29 Jul 2026 13:41:49 GMT

Not much into sports photography, but wildlife is a common thing (assuming backyard, garden, city park animals also fit the definition 🙂 ). Focusing behind branches and other obstacles is definitely something I'd use and that has caused me a lot of frustratingly failed photos in the past.

Regarding the low light focusing, I thought they were supposed to have identical performance according to the spec sheet. But that is also something I'd use with the camera, especially as I might have some darker lenses (like the 100-400).

Denoising is a concern, though. I don't tend to do photo editing (mixture of laziness and lack of patience). I've read that the II can handle 25600 without need for denoising. Is the III's "limit" for clean images 6400?

Regarding resolution, do you notice any difference? I see people mentioning that it's not noticeable, but it seems like a considerable jump to me (it's twice what it was from the I to the II).

I think the III would be a better fit for me, due to the autofocus. My budget is far from unlimited, but I tend to keep expensive purchases until they break down, so I'm looking at (hopefully) 10+ years with this camera. That should help balance the extra cost. The low light performance worries me, though, as that is also a common use case for me.

Re: EOS R6 Mark III vs EOS R6 Mark II, when video is not a priority

March411 — Wed, 29 Jul 2026 14:16:59 GMT

Obstacles are a problem with any body. I tend to heavy relay on spot when I'm photography in timber or field when I believe obstacles will create a challenge. Again it's subjective but the III performs better than the II did in these environments. Conversely I think the II performed better in low light especially when I compare ISO/noise.

Since I have not shot as much with the III and don't consider my setup of the menu items complete it could be a user issue. As I continue to tweak my setting, find improvements I save them to a custom function. I use the three available for wildlife, sports and macro.

I have the RF100-400mm and use it frequently, on both bodies and the AF can at times struggle but I can say the same thing about the R5 MKII. When I mount a faster lens the performance always improves but of course you pay for the speed.

Noise I believe everyone has their own opinion of what they consider clean, 6400 I pretty happy, 12800 I denoise but friends I shoot with say 12800 is fine. I definitely am not in the camp that liked any of my images @ 25600.

Resolution I would say is pretty much equal but color the on the III is better, again subjective. When I bought the II I rented both the I and II, there was no contest, the II was notably better. I recently went to the III because I wanted pre-capture which I do use pretty often.

I can say without hesitation that either the II or the III will not disappoint! If the funds are available and you think the III is a better fit I wouldn't hesitate.

If you have the chance renting is always a good choice if you still have some doubt on the best fit. I am lucky that I have a local Canon provider that rents gear that is pretty good shape. Rent both bodies and have a go, your results should resolve any doubts.

And I would just say that all bodies and lenses have compromises, none will be 100%. It really comes down to what you can afford, what best will fulfill your needs and can you live with the comprises on the lens/bodies you chose.

Re: EOS R6 Mark III vs EOS R6 Mark II, when video is not a priority

roweb — Wed, 29 Jul 2026 16:51:30 GMT

Renting isn't much of a possibility here and the only people I know with similar gear are Sony users, so I'm stuck with just researching the purchase.

Thanks for the input! I'm leaning towards the III due to the autofocus improvements, although I'll probably keep an eye out for large sales on the II.

I thought this would be a bit more clear-cut than it is, but looks like these two models are pretty equivalent.

By the way, do you notice more overheating with the III?

Re: EOS R6 Mark III vs EOS R6 Mark II, when video is not a priority

March411 — Wed, 29 Jul 2026 17:10:34 GMT

No overheating issues with the III. I think that it is pretty body specific as some have issues but many do not have problems.

And for what it's worth, I loved the II and have just as much love for the III. Neither will disappoint but if I had the money today and didn't own either, I would grab the III but I really enjoy the pre-capture, color, AF for wildlife and do run high ISO images through denoise.