Canon Patents

Patent: Optical formulas for Canon RF macro lenses

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We’re obviously going to get an RF L macro lens sooner than later, and Canon News has uncovered another patent showing various optical formulas for such a lens.

Canon RF 65mm f/2.8

  • Focal length: 65.13mm
  • F number : 2.92
  • Angle of view: 18.38°
  • Image height: 21.64mm
  • Lens length: 135.78mm
  • Backfocus: 21.40mm

Canon RF 90mm f/2.8 Macro

  • Focal length: 87.04mm
  • F number: 2.92
  • Angle of view: 13.96°
  • Image height: 21.64mm
  • Lens length: 135.86mm
  • Backfocus: 19.58mm

Canon RF 100mm f/2.8 Macro

  • Focal length: 97.62mm
  • F number: 2.92
  • Angle of view: 12.50°
  • Image height: 21.64mm
  • lens length: 123.21mm
  • Backfocus: 18.86mm

Canon RF 180mm f/2.8 Macro

  • Focal length: 189.96mm
  • F number: 2.92
  • Angle of view: 6.50°
  • Image height: 21.64mm
  • Lens length: 185.34mm
  • Backfocus: 23.95mm

slclick

EOS 3
Dec 17, 2013
4,635
3,039
Good news. Personally a great 100-ish macro and a pancake would get me onboard onto the RF train. I don't need IS for a macro lens, as I do nearly 100% on a tripod, ymmv. Plus, won't the bodies be stabilized?
 
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lbeck

*
Jul 30, 2019
17
40
Man I hope these come soon, I’d prefer the 100 or 180, and it’d be great if one of them did more than 1:1 mag, I’d love a 1-5x like their manual focuse MP-E 65
 
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Chaitanya

EOS 5D Mark IV
Jun 27, 2013
1,607
858
36
Pune
Personally I would like to see 180mm f4 IS USM macro over 180mm f2.8 Macro. Sigma already offered similar lens and it was very bulky lens. Now due to shorter flange distance if these lenses offer some additional working distance over their Slr counterparts then I would gladly purchase these lenses along with hypothetical crop sensor based RF camera.
 
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CJudge

EOS M6 Mark II
Mar 22, 2019
69
88
Ireland
www.colin-judge.com
Good news. Personally a great 100-ish macro and a pancake would get me onboard onto the RF train. I don't need IS for a macro lens, as I do nearly 100% on a tripod, ymmv. Plus, won't the bodies be stabilized?

The 100 macro makes for a great portrait lens too, and that's where a lot of shooters would benefit from IS. Although with the upcoming IBIS, all of this matters less and less...
 
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slclick

EOS 3
Dec 17, 2013
4,635
3,039
I wish I could find the quote, I think it was from the CEO of Olympus who said there is a limit of how many stops of stabilization is possible due to forces from the Earth's rotation....anyone?
 
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JustUs7

EOS RP
Feb 5, 2020
285
558
Yay! More patents!

*Just having fun. I know what this sites purpose is and why nothing is materializing in the current global situation.*
 
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miketcool

EOS 90D
Jun 29, 2017
190
383
RF 180mm Macro would be a little less cumbersome than my current setup.
 
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koenkooi

EOS 5D Mark IV
CR Pro
Feb 25, 2015
2,110
2,138
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lexptr

Photograph the nature while it exists...
Aug 8, 2014
85
55
Wow, 180mm f/2.8 is very interesting! Hope it will sport IS.
Also hope the 65mm will be the MP-E counterpart with improved sharpness.
Switching to R system one day gonna be a budget disaster... :)
 
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joseph ferraro

5DM4/R5 Macro
Apr 16, 2020
15
11
Can I hope and hope that there might just be an updated RF 65mm lens like the MPE-65. From my handheld macro perspective IS isn't much of an issue or want, since at +1x or more I feel that it wouldn't have much effect. Anyone on here use the MPE-65 on a EOSr body?
 
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picperfect

EOS 90D
Mar 29, 2020
112
92
hmm, slightly disappointed. no crazy RF 100/1.2 L IS Macro weighing 5 pounds and priced north of 5000?
 
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