Canon Patent Application: Let’s go long

Richard CR

Richard CR

Canon Rumors Premium
Dec 27, 2017
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#1
In this patent application (2024-101302), Canon discusses some unique telephoto lenses. Most of the lenses in here would be eye-watering priced, so hold onto your credit cards. Just in case. The primary purpose of this patent application is to explore designs that are reduced in size and weight for the given large aperture. According to

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#3
WOW!

Will be really interesting, IF any of those will become a real product.
I would vote for the 70-400/4. 70-300/4 (post corrected)
frankchn said:
I think the 70-400mm patent in the article is actually a 70-300mm design.
Click to expand...
You are right. The table in the CR article shows numbers of a max. FL of 291.389mm.
Maybe @Canon Rumors Guy did a copy & paste failure from the patent.
I coudn't find the right numbers in the (translated) patent.
@Richard CR, could you check the numbers again, please. Thanks!
 
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#5
I can see the 300-600 being the ultimate long telephoto zoom. Replace 6 lenses with 1 (300, 400, 500, 600, 800, 1200)! Would be scared of the price though and it would be the first big white without a constant aperture.
 
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#6
Good thing they changed the title. They’re not “that amazing”. The 300-600mm would be interesting, but the others are just regular lenses.

I don’t know what the deal is, but recently it looks like Canon Rumors has gone full fanboy with their publications. This rumors website used to be very cautious with the way they talked about things, but now it’s like “this would be better because it’s Canon” (I can’t find right now the post where that one is), and many publications are like everything from Canon is amazing. That kind of writing is not very professional, and just discredits the website.
 
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#8
Canon Rumors Guy said:
In this patent application (2024-101302), Canon discusses some unique telephoto lenses. Most of the lenses in here would be eye-watering priced, so hold onto your credit cards. Just in case. The primary purpose of this patent application is to explore designs that are reduced in size and weight for the given large aperture. According to

See full article...
Click to expand...
IIRC, Sigma made a 100-300 f/4 about 20 years ago, simultaneously with their first 70-200 f/2.8. I don't think it sold all that well. On the Sigma USA website, they still list their 120-300 f/2.8 but say it is discontinued.
 
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#9
Many interesting designs. It will be interesting to see which become actual products in the years ahead. Frankly, I am still waiting on the rumored 200-500 mm f4 L lens as a replacement for my 500 mm f4 L, which was one of my favorite lenses and way overdue for an update.
 
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#11
m4ndr4ke said:
Good thing they changed the title. They’re not “that amazing”. The 300-600mm would be interesting, but the others are just regular lenses.

I don’t know what the deal is, but recently it looks like Canon Rumors has gone full fanboy with their publications. This rumors website used to be very cautious with the way they talked about things, but now it’s like “this would be better because it’s Canon” (I can’t find right now the post where that one is), and many publications are like everything from Canon is amazing. That kind of writing is not very professional, and just discredits the website.
Click to expand...

that's a strange take, it's simply a title.

400-600 F2.8-F4 is a "normal lens" to you?

a 70-300 F4L - a normal lens?

And there are certain things in which Canon will do better than say a Sony.

But okay thanks for the feedback. we have been dutifully notified of your editorial concerns.
 
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#12
Maximilian said:
WOW!

Will be really interesting, IF any of those will become a real product.
I would vote for the 70-400/4.

You are right. The table in the CR article shows numbers of a max. FL of 291.389mm.
Maybe @Canon Rumors Guy did a copy & paste failure from the patent.
I coudn't find the right numbers in the (translated) patent.
@Richard CR, could you check the numbers again, please. Thanks!
Click to expand...

I wrote it up, and got messed up in the numbers. Craig was still sleeping at the time, and relatively blameless.
 
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#20
The 70-300mm looks very interesting to me. I currently use an EF 70-200 f/4L with a 1.4 extender most of the time. But the RF 70-200 doesn\'t work with extenders and this would basically give me the same reach.
 
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