Canon already working on an RF 70-200mm f/2.8 Mark II lens with internal zoom?

Feb 3, 2020

John Aldred

John Aldred is a photographer with over 20 years of experience in the portrait and commercial worlds. He is based in Scotland and has been an early adopter – and occasional beta tester – of almost every digital imaging technology in that time. As well as his creative visual work, John uses 3D printing, electronics and programming to create his own photography and filmmaking tools and consults for a number of brands across the industry.

Canon already working on an RF 70-200mm f/2.8 Mark II lens with internal zoom?

Feb 3, 2020

John Aldred

John Aldred is a photographer with over 20 years of experience in the portrait and commercial worlds. He is based in Scotland and has been an early adopter – and occasional beta tester – of almost every digital imaging technology in that time. As well as his creative visual work, John uses 3D printing, electronics and programming to create his own photography and filmmaking tools and consults for a number of brands across the industry.

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It was only October when the Canon RF 70-200mm f/2.8L IS USM lens went up for pre-order, and they only started shipping a month or two ago. But already, they seem to be working on a new one, according to a patent uncovered by Canon News.

The current model RF 70-200mm f/2.8L IS USM is like many zoom lenses. When you spin the focal length dial one way, the lens gets longer and when you spin it the other way it gets shorter. This new patent shows a design that would allow it to remain the same length throughout the zoom range. They also show off designs for an f/4 version, too.

The specs for the f/2.8 version of the lens show that it would be significantly longer than the 146mm (at its smallest) of the current model. It would see an increase of around 82mm in length, although it would remain that length at all times.

Canon RF 70-200mm f/2.8L

  • Focal length 72.00mm 133.20mm 194.00mm
  • F-number 2.88 2.88 2.88
  • Half field angle (degrees) 16.72 9.23 6.36
  • Image height 21.64mm 21.64mm 21.64mm
  • Total lens length 228.54mm 228.54mm 228.54mm
  • BF 24.36mm 24.36mm 24.36mm

Yes, 228.54mm long. That’s pretty substantial. For comparison, the Canon EF 70-200mm f/2.8L IS III USM lens for DSLRs is 199mm long. The Nikon AF-S 70-200mm f/2.8E FL ED VR is 202.5mm long.  It is pretty close in length, though, to the delayed Nikon Nikkor Z 70-200mm f/2.8 VR S, at 220mm. The part of the patent describing a Canon RF 70-200mm f/4.0L lens, though, isn’t much smaller, surprisingly.

Canon RF 70-200mm f/4.0L 

  • Focal length 72.00mm 133.20mm 194.00mm
  • F-number 4.10 4.10 4.10
  • Half angle of view (degrees) 16.72 9.23 6.36
  • Image height 21.64mm 21.64mm 21.64mm
  • Total lens length 202.98mm 202.98mm 202.98mm
  • BF 38.71mm 38.71mm 38.71mm

While there’s no clear optical advantage to a lens with an internal zoom, there are some mechanical benefits. Although more complex to design, internal zoom lenses have fewer externally moving parts, which means they can be built with better dust and weather sealing – important factors for sports, wildlife and many other photographers.

The patent doesn’t mention weights that I can see – which is understandable. How can you know the weight of something until you’ve actually built it and popped it on a scale? So, exactly how they will compare to existing options is unknown, although I can’t imagine they’ll be all that different from their EF counterparts, given the length.

If you want to read the patent in full, you can check it out here.

[via Canon News]

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John Aldred

John Aldred

John Aldred is a photographer with over 20 years of experience in the portrait and commercial worlds. He is based in Scotland and has been an early adopter – and occasional beta tester – of almost every digital imaging technology in that time. As well as his creative visual work, John uses 3D printing, electronics and programming to create his own photography and filmmaking tools and consults for a number of brands across the industry.

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6 responses to “Canon already working on an RF 70-200mm f/2.8 Mark II lens with internal zoom?”

  1. Hugh Dom Avatar
    Hugh Dom

    Internal

  2. Johnny Martyr Avatar
    Johnny Martyr

    Prime. ?

  3. Alexandre Ayoubi Avatar
    Alexandre Ayoubi

    I already have a internal 70-200 2.8. It’s a Sigma. The non-OS is amazingly sharp and used I got it for amazingly cheap! :)

  4. Jolyon Ralph Avatar
    Jolyon Ralph

    Can we be more precise on this? Canon have published a patent. As far as that goes that could well be the end of it and there isn’t necessarily any further work. Right now they are very unlikely to replace the existing RF 70-200 especially at that price point.

  5. Denis Germain Avatar
    Denis Germain

    internal 200%

  6. Duncan Dimanche Avatar
    Duncan Dimanche

    ineternal unless I can get a much small zoom ? size does matter people !!!