Canon EF 400mm f/2.8L IS III Teardown (Lens Rentals)

Canon EF 400mm

Roger Cicala and Aaron Closz of Lens Rentals disassembled the Canon EF 400mm f/2.8L IS III lens, a lens that costs like a used car.

From their conclusion:

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.

All images © lensrentals.com and used with permission.

Canon EF 400mm f/2.8L IS III at a glance:

  • EF-Mount Lens/Full-Frame Format
  • Aperture Range: f/2.8 to f/32
  • Super UD and Fluorite Elements
  • Super Spectra and Air Sphere Coatings
  • Ring-Type Ultrasonic Motor AF System
  • Customizable Electronic Focusing Ring
  • Optical Image Stabilizer
  • Weather-Sealed Design, Fluorine Coating
  • Detachable, Rotatable Tripod Collar
  • Rounded 9-Blade Diaphragm

Canon EF 400mm f/2.8L IS III: Amazon, B&H Photo, Digitalrev, eBay, Adorama, KEH Camera, Canon USA

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

Nikon Z7 Teardown, Best Build Mirrorless FF Camera Ever Seen Says Lens Rentals

Nikon Z7

All images © lensrentals.com, used with permission.

Roger Cicala of Lens Rentals tore down a Nikon Z7, and was very impressed with the build quality.

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.)

Roger Cicala’s teardown is documented step by step with pictures and descriptions.

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.

Nikon Z7B&H Photo | Adorama | Amazon

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

Canon EF 70-200mm f/4L IS II teardown (Lens Rentals)

Canon EF 70-200mm F/4L IS II

All images © lensrentals.com and used with permission

Roger Cicala of Lens Rentals posted a teardown of the new Canon EF 70-200mm f/4L IS II lens. Impressive images, and interesting findings too.

Excerpts from Roger’s conclusion:

[…] this is, as we would expect, a very well built lens with robust roller bearings, large brass collars, heavy metal keys, and good weather sealing. [Lens Rentals has] some hints, and a lot of Roger speculation, about how Canon is getting lenses with such low variance. Here’s what we know: Canon has more optical adjustments than most lenses, not less. So while they may have tighter tolerances (I have no clue), the key seems to be more in a careful optical adjustment of compensating elements than anything else.

It is clear that Canon is going with more, and more straightforward, adjustment of optics than the other manufacturers.

Canon EF 70-200mm f/4L IS II

Image © lensrentals.com

Be sure to head over to Lens Rentals to see the many pictures of the teardown, and to get the findings.

The Canon EF 70-200mm f/4L IS II is getting one positive review after the other. Canon clearly has another winner here. The Canon EF 70-200mm f/4L IS II is in stock at major retailers in the US, price is $1,299: B&H Photo | Adorama | Amazon.

Canon EF 70-200mm f/4L IS II world-wide:

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