I have both. I’m a sports photographer shooting surf competitions. Bugger all difference between the two. The R1 still has the random shutdown problem the R3 resolved 18months ago. Pre-shoot is not flexible to be useful and can’t be enabled at the press of a button. I think the R3 has better AF tracking, because the R1 has been tuned for several ball sports. Surfing does not have a ball. The R3 for me is more reliable AF. Image quality, can’t tell them apart. R1 viewfinder is larger and brighter.

still sticking with my R3 with f2 28-70mm low light monster setup love it

Bought a new R3 recently for $3,999, inclusive of tax and free shipping. Two grand price drop. This may be the last camera I’ll ever buy. At least, I won’t look at another until the R1 Mark IV is released.

There is literally zero point in buying an R1 unless you are not the one buying it and the person who is doesn’t care about money. Recapture, 40fps in stills And Clog2 do not justify the delta for the jump to an R1. I have an R3 and I do not feel the R1 is good value for money, you better off getting 2 used R3’s at the price of one R1

I have the R3 an the R5 mk2 but still pre-ordered R1 cant wait to get it

For my needs my EOS R and R3 cover all bases

I love my R3 and R5 but have bit the bullet and pre-ordered the R1 and R5 MKII - can wait :)

Excellent review! The in camera file upsizing is a game changer!!

I love my R3 and did preorder the R5 ii to go along with it…I think I’ll be very happy!

Good question, 6k sounds very useful depends on subject (wildlife etc) informative video Thanks Park Cameras.

I would think the R3 could do some of the things canon added to the R1 via a firmware update but I doubt if that will ever happen, canon knows where its money is. Shame because I’m certain the R3 can do more, for example they added the 195 fps via a firmware update. Let’s hope they do add more features.

Love my R3 and gonna get R5 Mark II later on

I'm a gear nerd, and I've just bought the R3, having landed a casual sports photography gig. I can tell you that if it goes where I want it to go, I'll be looking at the R1, but the R3 is incredibly good - it just feels good. It doesn't have pre-capture shooting like my R5MII, which I think is strange, and I wish they'd give us the ability to assign single shot/burst switching to a button. Eye control is incredible.

Good vid straight to what I wanted to see without the fluff.

I would be really happy (over the moon) with either camera! either would be a massive upgrade from my 60D but i dont have that sort of cash and i dont think i ever will. 😢

I love my R3, it is fantastic in the field.  However, the resolution upscale feature in the R1 would be nice to have.

Great video.  Why do you use the word “stops” in reference to stabilization?

I was at a canon event, and had a quick look at the R1, I had it in my hands long enough to fiddle a little around in the menu's, and by turning the lightness in the viewfinder down a bit, and setting the (jpg) image style to low contrast and toned down colours, I managed to make the viewfinder look a lot more like an optical viewfinder, which will be a deal-breaker for me, as I get a headache from the typically very bright and over-satuated image of the EVF of R-cameras....
- There were also an R3 available, but in the very short time of the event, I didn't manage the same result with the R3, however, I didn't put the same effort into it as what I did with the R1, so I wonder, is it possible that I can have You try out for me, whether changing the image style to low contrast and less satuation, will affect the image in the viewfinder....???

Excelent review

Fairly interesting points raised and solved by a Canon r1 mark ii?