Canon Patent: RF 24-100mm F/4 and RF 24-105mm f/4 IS Lenses For EOS R

Canon Patent
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Another Canon patent application for RF mount lenses: RF 24-100mm f/4 and 24-105mm f/4 IS.

Canon patent application 2020-67542A (Japan) discusses optical formulas for an RF 24-100mm f/4 and an RF 24-105mm f/4 IS lens.

RF 24-100mm f/4:

  • Zoom ratio: 4.13
  • Focal length: 24.72 53.96 102.00 mm
  • F number: 4.12 4.12 4.12
  • Half angle of view: 41.19 21.85 11.98
  • Image height: 21.64 21.64 21.64 mm
  • Lens length: 133.43 152.26 171.08 mm
  • Back focus: 18.51 32.77 43.74 mm

More Canon patent applications are listed here. Some particularly interesting patent applications we think might get into production are these:

[via Hi Lows Note]

Canon RF 70-135mm f/2L USM Lens For The EOS R System Coming 2020?

Rf 70-135mm
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Not the first time an RF 70-135mm f/2L USM lens for the EOS R full frame mirrorless system is mentioned.

Now a new rumor suggests Canon might announce the Canon RF 70-135mm f/2L USM in Q4 2020. Apparently the lens is already tested by a selected group of photographers.

Note that the lens has no image stabilization. And that’s to expect, given that we know for sure that IBIS (In Body Image Stabilization) is featured on the EOS R5 and EOS R6, and likely on every future Canon mirrorless camera.

The next Canon cameras we are expecting are the EOS R5 and EOS R6. However, the global pandemic might affect both release and shipping. The pandemic has already had a strong impact on Canon’s financial results.

Stay safe.

Source: Canon Rumors

Canon RF 24-105mm f/4-7.1 IS STM Review (one quirky little lens)

Canon RF 24-105mm F/4-7.1 IS STM Review
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Here is a Canon RF 24-105mm f/4-7.1 IS STM review, a more budget-oriented lens option for the EOS R full frame mirrorless camera system.

Christopher Frost Photography posted a 12min video where he discusses the features and performance of the Canon RF 24-105mm f/4-7.1 IS STM:

Is this the low(er) budget zoom lens for EOS R camera’s that we’ve been dreaming about – and how much will a surprisingly dark maximum aperture really bother you? Let me tell you now – this is one quirky little lens.

The Canon RF 24-105mm f/4-7.1 IS STM sells at $399: B&H Photo, Adorama, Amazon USA, Amazon Canada, Canon Canada, Canon USA

Key features:

  • RF-Mount Lens/Full-Frame Format
  • STM Stepping AF Motor
  • Center Macro Focus, 1:2 Magnification
  • Optical Image Stabilizer
Click here to open the rest of the article

Canon Patent: RF 70-300mm f/3.5-5.6 & RF 100-500mm f/5.6-6.4 Lenses (EOS R)

Canon Patent
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Here is a new Canon patent application, and again it is about lenses for the RF mount.

Canon patent application 2020-64176 discusses optical formulas for an RF 70-300mm f/3.5-5.6 and an RF 100-500mm f/5.6-6.4 lens, both are for the EOS R full frame mirrorless system.

RF 70-300mm f/3.5-5.6

  • Zoom ration: 3.97
  • Focal length: 72.86 133.96 289.00 mm
  • F number: 3.75 4.66 5.83
  • Half angle ov view: 16.54 9.17 4.28
  • Image height: 21.64 21.64 21.64 mm
  • Lens length: 162.01 202.44 237.12 mm
  • Back focus: 13.80 31.02 57.79 mm

RF 100-500mm f/5.6-6.4

  • Zoom ration: 4.75
  • Focal length: 102.00 220.00 485.00 mm
  • F number: 5.69 6.14 6.43
  • Half angle of view: 11.98 5.62 2.55
  • Image height: 21.64 21.64 21.64 mm
  • Lens length: 213.16 266.00 293.16 mm
  • Bacl focus: 11.09 26.50 42.04 mm

This might be a patent that gets into production sooner or later. More Canon patent applications are listed here. Some particularly interesting patent applications we think might get into production are these:

[via Hi Lows Note]

You Can Now Buy The Canon EOS RP Kit With The RF 24-105mm f/4-7.1 IS STM Lens

Canon Firmware Eos Rp Kit
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A new Canon EOS RP kit option has been added with the RF 24-105mm f/4-7.1 IS STM lens. The new kit sells at $1,299.

All Canon EOS RP kit options: B&H Photo, Adorama, Amazon USA, Amazon Canada, Canon Canada, Canon USA

The RF 24-105mm f/4-7.1 IS STM lens is a light-weight, entry-level oriented lens option for the RF mount and EOS R system.

Key features:

  • RF-Mount Lens/Full-Frame Format
  • STM Stepping AF Motor
  • Center Macro Focus, 1:2 Magnification
  • Optical Image Stabilizer
Click here to open the rest of the article

RF Mount Macro Lenses For The EOS R Might Be In The Works, Patents Suggest

RF Mount Macro
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I think it’s just logic to expect that Canon will continuously release RF mount versions of most of the lenses currently existing for the EF mount. RF mount macro lenses for sure too.

Two Canon patent applications in Japan (2020-60660A and 2020-60661A, spotted by Hi Lows Note), show that Canon R&D departments are working on such lenses, and we think here too we have a patent application that might hit the market sooner or later. Optical formulas for RF mount macro lenses with focal lengths of 90mm, 100mm and 180mm, all f/2.8, are discussed in the patent applications.

More Canon patent applications are listed here. Some particularly interesting patent applications we think might get into production are these: