Canon EOS R3 size comparison: DWARFS the R5, smaller than Nikon and Fuji rivals

Canon EOS R3 size
(Image credit:

The Canon EOS R3 utterly dwarfs the Canon EOS R5, which isn't exactly a shock given that it's a camera with a professional form factor (ie it has a larger body with built-in vertical grip). However, what may come as a surprise is that it is smaller than its pro-body rivals from Nikon, Fujifilm, Olympus and even Canon itself. 

New size comparisons reveal that the Canon EOS R3 is smaller than the Canon EOS-1D X Mark III and Nikon D6 DSLRs, the medium format Fujifilm GFX 100 and the incongruous Micro Four Thirds Olympus OM-D E-M1X – all cameras with integrated grips, built with professional use in mind.

• Read more: Best professional cameras

That's according to new data from size comparison website (hat tip to Photo Rumors for the spot and the images), which has added pre-release data on the Canon EOS R3 to its database – though of course, these details are subject to change as the camera comes closer to release.

The site enables us to make realistic side-by-side comparisons of the R3 and its opposite numbers from other manufacturers. Here's how the upcoming camera compares to its rivals, as well as the Canon EOS R5 to provide a better sense of scale with regular bodies.

Canon EOS R3 (left) vs Canon EOS R5 (right) – Unsurprisingly, the R5 looks positively tiny in comparison!  (Image credit: Canon)

Canon EOS-1D X Mark III (left) vs Canon EOS R3 (middle) vs Nikon D6 (right) – Next to pro DSLRs, however, it's the R3 that looks tiny. (Image credit:

Canon EOS R3 (left) vs Fujifilm GFX 100 (right) – Fujifilm's 100MP medium format monster isn't aimed at the same end user, but it's still a pro camera through and through. (Image credit:

Canon EOS R3 (left) vs Olympus OM-D E-M1X (right) – The most peculiar comparison of all is with one of the most peculiar cameras, the E-M1X (which hardly extolls the size benefits of the tiny Micro Four Thirds sensors!). (Image credit:

Again, this is based on pre-release data that's subject to change – though even using crude calculations based on the size of the RF mount, these are going to be pretty good ball park estimates.

Obviously there are still plenty of big unknowns about the camera – in fact, here are 5 things we don't know about the Canon EOS R3 – but it's helpful to have an idea of just how big it will (or, more accurately, won't) be. 

Read more: 

Canon EOS R5 review
Canon EOS-1D X Mark III review
Nikon D6 review
Fujifilm GFX 100 review
Olympus OM-D E-M1X review

Thank you for reading 5 articles this month* Join now for unlimited access

Enjoy your first month for just £1 / $1 / €1

*Read 5 free articles per month without a subscription

Join now for unlimited access

Try first month for just £1 / $1 / €1

James Artaius

The editor of Digital Camera World, James has 21 years experience as a journalist and started working in the photographic industry in 2014 (as an assistant to Damian McGillicuddy, who succeeded David Bailey as Principal Photographer for Olympus). In this time he shot for clients like Aston Martin Racing, Elinchrom and L'Oréal, in addition to shooting campaigns and product testing for Olympus, and providing training for professionals. This has led him to being a go-to expert for camera and lens reviews, photo and lighting tutorials, as well as industry news, rumors and analysis for publications like Digital Camera MagazinePhotoPlus: The Canon MagazineN-Photo: The Nikon MagazineDigital Photographer and Professional Imagemaker, as well as hosting workshops and talks at The Photography Show. He also serves as a judge for the Red Bull Illume Photo Contest. An Olympus and Canon shooter, he has a wealth of knowledge on cameras of all makes – and a fondness for vintage lenses and instant cameras.