Canon Patent Application: Canon RF 35mm F1.4 and 26mm F1.4

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In this patent application (2024-061921), Canon is showing off some curious embodiments for some prime lenses. These are full-image circle primes with no image stretching so understandably they would be targetted as higher-end primes. Maybe Canon got tired of my whining on the subject. But what I found most curious is that the focal lengths

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Del Paso

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The patent states a focal length of 26.62 mm, maybe Canon will round this up to 28 mm.
I still don't understand this focal length.
If you own a 24mm or a 28mm, why should you buy it? WA standard zooms start at 24 or 28mm, existing or future primes are -will certainly be- 24 and 28mm...
Unless this lens is meant for a very specific purpose, I'm at a loss for what to do with this focal...
 
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koenkooi

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A 26mm Prime would indeed be somewhat odd and not in accordance with our expectations. But remember, Zeiss has a 1.4/25mm Milvus wich also does not fit to the usual FL for FF. And 25mm Primes at least are common in cine-lenses (Arri, Zeiss, Cooke).
And Hasselblad just introduced a 25mm lens for their ‘medium’ format as well.
 
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Del Paso

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A 26mm Prime would indeed be somewhat odd and not in accordance with our expectations. But remember, Zeiss has a 1.4/25mm Milvus wich also does not fit to the usual FL for FF. And 25mm Primes at least are common in cine-lenses (Arri, Zeiss, Cooke).
Zeiss has a long 25mm tradition (Biogon, Milvus, Batis, Distagon). Same with 20-21mm lenses. Some companies prefer 20mm, Leica and Zeiss opt for 21mm, No reason, just a choice.
 
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Berowne

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Zeiss has a long 25mm tradition (Biogon, Milvus, Batis, Distagon). Same with 20-21mm lenses. Some companies prefer 20mm, Leica and Zeiss opt for 21mm, No reason, just a choice.
Wich is btw also true for other Standard-FL. Remember all the various 55 und 58mm Primes - instead the "usual" 50mm. And of course the Portrait-FL is not always 85 mm like Canon, Zeiss and Nikon. Leica used to have 90mm - except the 80mm Summilux-R and the 75mm Summicron/lux-M. :)
 
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Del Paso

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Wich is btw also true for other Standard-FL. Remember all the various 55 und 58mm Primes - instead the "usual" 50mm. And of course the Portrait-FL is not always 85 mm like Canon, Zeiss and Nikon. Leica used to have 90mm - except the 80mm Summilux-R and the 75mm Summicron/lux-M. :)
75 Summilux M: :love::love::love::love::love:
And the 60mm Macro Elmarit, the 180mm Apos, the 250, 280, 560 Telyts.
So, if I think it over, why not an RF 26mm?
 
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clearlyed

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I guess you're ignoring the R5C
We have 3 R5c cameras which have been our workhorses for years. But they we only supposed to see us through until a professional camera came out. It’s been 2 years. Our rigs a crazy to make it work as a good cine camera. Cage, rails, v-mount plate with cables, hdmi to sdi coverts with cables, useable monitors with cables. It’s great but it’s an absolute mess.
 
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Maximilian

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The patent states a focal length of 26.62 mm, maybe Canon will round this up to 28 mm.
Could be. But normally Canon would round this up to the "better side".
A 382mm tele will become a "400mm".
A 26 mm WA will become a "24 mm".
We'll see, what patent will come to live at all.
 
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Zeiss has a long 25mm tradition (Biogon, Milvus, Batis, Distagon). Same with 20-21mm lenses. Some companies prefer 20mm, Leica and Zeiss opt for 21mm, No reason, just a choice.
If Canon makes a full-frame 25 mm lens they call it 24.
They use the exact focal length for APS-C lenses.
I think Zeiss prefers to be exact.
 
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