Canon Explains The Advantages Of The Larger Mount On The Canon EOS R

Eos R

DCWatch posted some information about an internal Canon presentation.

The benefits and advantages of the large diameter of the RF mount featured on the Canon EOS R are discussed. The main reason is that the RF mount allows for a new and improved lens design.

Apparently, Canon had a try to use the EF M mount for their EOS R full frame mirrorless camera (machine translated text):

Initially, Canon also considered to realize a 35mm full size with the EF-M mount of the APS – C mirrorless “EOS M” series, but satisfactory results were not obtained, such as no performance aimed at . And since the system becomes large when unnecessarily increasing the mount diameter, we actually designed multiple lenses, decided to 54mm while looking at the balance of optical merit and size, the strength of the camera and so on.

This didn’t work out well, as it seems.

Canon sees these main advantages of the larger mount:

  • more flexibility on where the optical elements have to go
  • larger elements can be placed closer to the sensor
  • lenses are easier to design
  • complex lenses like the RF 50mm f/1.2L and 24-70mm f/2L are feasible
  • vignetting and other optical issues are better controlled

Note that while most of the above points would have been technically done also with the EF M mount, Canon clearly decided to go for the new mount type on the Canon EOS R because of the many advantages.

Some rumor outlets still push the rumor that Canon might release an APS-C model in the EOS R line-up; that’s not going to happen.

Canon RF 50mm f/1.2L Teardown (new optic with new technology, Lens Rentals)

Canon RF 50mm F/1.2

Roger Cicala and Aaron Closz of Lens Rentals tore down the Canon RF 50mm f/1.2L, the showcase lens for the new Canon EOS R system.

It seems that for once they were a bit overwhelmed by Canon’s latest optical masterpiece. From the conclusion:

[…] the R lenses are not only entirely new optics, they are also largely new electrical and mechanical systems. There are a lot of different things in here that we haven’t seen in any Canon EF lenses. Some of them we should have expected, like the increased electronics going to the control ring. Others we don’t really understand yet, like the tension spring in the ring USM motor or the increased electrical shielding. […] We also saw lots of new stuff we don’t completely understand yet and a level of complexity we weren’t expecting. […] the RF lenses contain some new technology they [Canon, editor’s note] haven’t used before. There’s a lot of engineering that’s gone into these. Things are different inside here. As we’ll see in the next teardown we do, some of that is carrying over to at least some EF lenses. What does this mean? It means Canon has invested very heavily into developing the lenses of the R system. This level of engineering didn’t all happen in the last year, they’ve been working on this for quite a while.

You can see a few images of the teardown below, though I recommend you head over to Lens Rentals for the many pictures and the step by step description of the teardown. Just don’t do it a home yourself.

The Canon RF 50mm f/1.2L is a highly regarded lens, universally seen as one of the two lenses Canon made to showcase the possibilities of their new RF mount (the other one being the RF 28-70mm f/2L.

Canon RF 50mm f/1.2L:

Australia: Amazon, Adorama, B&H Photo, Digitalrev, eBay Australia, Alibaba
Canada: Amazon Canada, DigitalRev, Adorama, B&H Photo, eBay Canada, Canon Canada, KEH Camera
France: Amazon FR, DigitalRev, eBay FR, Canon France
Germany/Austria/Switzerland: Amazon DE, DigitalRev, eBay DE, Wex Photo Video, Canon Deutschland
United Kingdom/Ireland: Amazon UK, Park Cameras, Wex Photo Video, DigitalRev, eBay.uk, Canon UK
USA: Amazon, B&H Photo, Digitalrev, eBay, Adorama, KEH Camera, Canon USA

Canon’s Future 8K Video Camera Concept Explained

8k Video

The folks at Cinema5D made a neat video where they explain what Canon’s 8K video technology is about.

At Inter Bee 2018 Cinema5D met with Canon’s Toshiyuki Akimoto who is responsible for the development of 8K monitors and cameras. He was kind enough to explain Canon’s take on 8K acquisition.

The Canon 8K camera concept presented at Inter BEE 2018 has quite a compact body very similar to the Canon C300 Mark II. It will have a super 35mm sensor and an 8K processing unit inside and mind you that recording will not be done internally. You will have to find and attach an external 8K recording solution. According to Canon, the purpose of this demonstration is to research the market and to gather the customer’s opinion regarding future 8K demand.

Since this 8K camera is still only a prototype and future technology demonstration, there is no detailed explanation of its functions or ergonomics yet. The presented camera, however, looks to being very close to the production stage.

Canon has in fact already demonstrated the same system at the “Canon Expo” in 2015. It seems that Canon has had 8K technology for quite a while already. We can only guess the reason for not releasing a Canon 8K capable camera til now was because the 8K market has not grown enough yet. 8K is being promoted mainly in Japan – there were very few 8K demonstrations at international trade shows like NAB or IBC.

And here is the video.

Here Is Another Canon EOS R Teardown, Showing How Well This Camera Is Build

Canon Eos R

All images © kolarivision.com and used with permission

The folks at Kolari Vision disassembled the Canon EOS R.

They write:

[…] the slimmest sensor we’ve seen thus far in the mirrorless war. The absence of a shaker for IBIS keeps the sensor assembly very lean, but a lot of unused room remains in the camera. Whether this is necessary for heat dissipation or some other purpose is anybody’s guess. Canon doesn’t seem to care much for the idea of IBIS, but they could very well intend to add it in a later model. We won’t know until it happens.

See the teardown at Kolari Vision.

Another Canon EOS R teardown can be seen here.


Please use the links below to put your order (international shipping available).

Order the Canon EOS R in the USA: B&H Photo | Adorama | Canon USA | Amazon

Order the Canon RF mount lenses in the USA: B&H Photo | Adorama | Canon USA | Amazon

Availability should be given also at major retailers in Europe and around the world (you have to check for your country). Please use the links below.

Canon EOS R world-wide order links:

Australia: Amazon, Adorama, B&H Photo, Digitalrev, eBay Australia, Alibaba
Canada: Amazon Canada, DigitalRev, Adorama, B&H Photo, eBay Canada, Canon Canada, KEH Camera
France: Amazon FR, DigitalRev, eBay FR, Canon France
Germany/Austria/Switzerland: Amazon DE, DigitalRev, eBay DE, Wex Photo Video, Canon Deutschland
United Kingdom/Ireland: Amazon UK, Park Cameras, Wex Photo Video, DigitalRev, eBay.uk, Canon UK
USA: Amazon, B&H Photo, Digitalrev, eBay, Adorama, KEH Camera, Canon USA

Canon RF mount lenses world-wide order links:

Australia: Amazon, Adorama, B&H Photo, Digitalrev, eBay Australia, Alibaba
Canada: Amazon Canada, DigitalRev, Adorama, B&H Photo, eBay Canada, Canon Canada, KEH Camera
France: Amazon FR, DigitalRev, eBay FR, Canon France
Germany/Austria/Switzerland: Amazon DE, DigitalRev, eBay DE, Wex Photo Video, Canon Deutschland
United Kingdom/Ireland: Amazon UK, Park Cameras, Wex Photo Video, DigitalRev, eBay.uk, Canon UK
USA: Amazon, B&H Photo, Digitalrev, eBay, Adorama, KEH Camera, Canon USA

This is how a disassembled Canon EOS R camera looks like

Canon Eos R

All images © lensrentals.com, used with permission.

Roger Cicala of Lens Rentals tore apart another piece of photographic gear. This time its the Canon EOS R’s turn to get disassembled.

Roger Cicala says:

It was rather a boring disassembly, really, about what we should expect for Canon doing a Canon 6D Mark II quality mirrorless camera. It’s neatly laid out and nicely engineered inside. One thing that struck me is that it’s not very crowded inside there, or as we like to say ‘they left a lot of air inside’.

This view that I haven’t shown you yet, kind of illustrates that; there’s a pretty big gap between the circuit boards and the image sensor. If you look back at the Sony A7R III teardown […] you’ll notice there’s not that much space inside; it’s taken up by the IBIS system which is big and thick.

There is an interesting statement by Mr. Cicala about future Canon EOS R models eventually having IBIS (In Body Image Stabilisation). He doesn’t think there will ever be an EOS R with IBIS:

Canon has been very clear that they think lens stabilization is superior. The space [the ‘air inside’ mentioned above, editor’s note] is probably just a matter of ergonomics and perhaps heat diffusion. But there’s certainly room for it.

The Canon EOS R teardown comes with a huge set of images, documenting any stage of the disassembly process along with descriptions. See the whole teardown at Lens Rentals Blog.

Canon EOS R world-wide order links:

Australia: Amazon, Adorama, B&H Photo, Digitalrev, eBay Australia, Alibaba
Canada: Amazon Canada, DigitalRev, Adorama, B&H Photo, eBay Canada, Canon Canada, KEH Camera
France: Amazon FR, DigitalRev, eBay FR, Canon France
Germany/Austria/Switzerland: Amazon DE, DigitalRev, eBay DE, Wex Photo Video, Canon Deutschland
United Kingdom/Ireland: Amazon UK, Park Cameras, Wex Photo Video, DigitalRev, eBay.uk, Canon UK
USA: Amazon, B&H Photo, Digitalrev, eBay, Adorama, KEH Camera, Canon USA

Canon RF mount lenses world-wide order links:

Australia: Amazon, Adorama, B&H Photo, Digitalrev, eBay Australia, Alibaba
Canada: Amazon Canada, DigitalRev, Adorama, B&H Photo, eBay Canada, Canon Canada, KEH Camera
France: Amazon FR, DigitalRev, eBay FR, Canon France
Germany/Austria/Switzerland: Amazon DE, DigitalRev, eBay DE, Wex Photo Video, Canon Deutschland
United Kingdom/Ireland: Amazon UK, Park Cameras, Wex Photo Video, DigitalRev, eBay.uk, Canon UK
USA: Amazon, B&H Photo, Digitalrev, eBay, Adorama, KEH Camera, Canon USA

Magic Lantern Works On The Canon EOS R, Here Is The Proof of Concept

Magic Lantern

Magic Lantern‘s A1ex and EOSHD made some tests with Magic Lantern on the brand new Canon EOS R. And it appears to work. Or at least we have a proof of concept.

A1ex at Magic Lantern recently sent along two firmware files for the EOS R which have been successfully tested on the 5D Mark IV and 80D.

Based on the same boot-loader in the Canon 80D, one of the firmware files is supposed to probe the camera in a first attempt to find the address of the LED light as a marker (and more). Once the LED flashes, that gives away the address of the GPIO attached to it and thus the first stage of controlling the rest of the camera can begin – executing more code on the processor can be attempted in the normal way. The file also tries to probe registers that are present on other Canon bodies, with the results being noticeable on the LCD if they do anything on the EOS R.

The videos below show the proof of concept. Kudos A1ex!