• The Canon Rumors Forum has officially been shut down as of July 10, 2026.

    All data will be deleted on September 16, 2026.

    the ad free experience will return by July 17, 2026.

Canon Patent Application: Super Telephoto 200-1000mm

Richard-CN

Guest
Dec 27, 2017
2,407
3,722
17,629
Canada
www.canonnews.com
In this patent application (2024-111453), Canon explores the super telephoto zooms that ended up with the Canon RF 200-800mm f/6.3-9 IS USM. However, there are some other interesting designs in here worth exploring so let's go through them and you'll have to tell me if Canon should have gone for broke and made a 200-1000mm.

 
  • Like
Reactions: 1 users
The 200-800 has a lens length of 422mm, whereas the 200-700 and 150-600mm embodiments are 448mm, so that might also make the 200-700 less attractive.

However, the "800mm" is only 776mm, but the 700mm is a true 700mm (699.99mm).

The 200-1000mm would have to have an even larger front element, considering that the 800 (776mm) and the 1000mm (980mm) has the same f/9.18 aperture number.
 
  • Like
Reactions: 1 user
Upvote 0
It is a special lens.
The medium focal length f-numbrr is smaller than wide focal length.
If it is a L lens and near ef400 f4.0 do lens size.
I really want one.
But the size would be larger than 100-500mm f/4.5-7.1L x 2x.
 
  • Like
Reactions: 1 user
Upvote 0