Someone wanted to see how the Canon EOS R5 looks on the inside and so he tore it down.
A Chinese guy (an engineer?) tore down the Canon EOS R5. He applied thermal paste on the CPU in order to dissipate more heath. It’s not clear from the video if this solution works but it is cool to see how the R5 looks inside.
The spring-loaded adjustable collar collection is something of a mystery to us and will remain so until we can spend some days doing optical adjustments on one. The use of the same motor as the RF lens is very interesting in several ways. Only some more tear downs will tell us if this is just a superior motor type that Canon is going to use in all electrically focused lenses (I suspect this is probably the case), or just in lenses with a lot of glass in the focusing element (another likely thing).
Canon has really been very quiet about this lens, despite the known changes inside. I had a lot of trouble finding out which elements are fluorite (two of them are, apparently). There has been some talk about improved focusing speed and accuracy, which I assume has something to do with the new electronic focus system, but not much.
The teardown is explained step by step with a lot of pictures, see it here.
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.
Impressing Mr. Cicala doesn’t seem to be an easy task. He was impressed with the overall build quality, and praises the weather sealing of the Nikon Z7. From the the conclusion:
This is not marketing department weather resistance. This is engineering department weather resistance. Anything that can be sealed has been sealed. I’m impressed, and I will say for future cut-and-paste blurbs: this is as robustly weather sealed a camera as we’ve ever disassembled.
[…]
I’m impressed by the very solid construction of the chassis and IBIS unit. I’m impressed with the neat, modern engineering of the electrical connections. Yes, I’m aware that soldered wires carry electricity just fine, but to me, there’s something reassuring about seeing neat, well thought out, 2018 level engineering.
I’m not here to tell you which camera is best to use or has the best performance. I’m just here to say this is a damn well-built camera, the best built mirrorless full-frame camera we’ve taken apart. (For the record, I haven’t torn down a Leica SL.)
The teardown of the Canon EOS R is featured here. Another EOS R teardown is here. Nothing to argue here, the Nikon Z7 is the better buld camera. As Mr Cicala points out, the Nikon Z7 is the flagship camera in Nikon’s Z system. When Canon will release their flagship mirrorless full frame camera, we’ll see if the build quality holds up with the Z7.
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.
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.
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