Canon Patent: 200-1000mm F6.3-9 IS Lens For RF Mounts

Here is a new Canon patent application.

Canon patent application 2024111453 (Japan, published 8/19/2024) discusses optical formulas for a telephoto zoom lens, the 200-1000mm F6.3-9 IS.

Example 1

• Focal length: 203.00-776.00
• F-number: 6.42-9.18
• Half angle of view: 6.08-1.60
• Image height: 21.64
• Total length: 331.63-421.61
• Back Focus: 37.98-96.27

Example 2

• Focal length: 203.00-699.99
• F-number: 5.60-7.10
• Half angle of view: 6.08-1.77
• Image height: 21.64
• Total length: 347.80-447.80
• Back Focus: 38.65-94.84

Example 3

• Focal length: 158.88-600.00
• F-number: 5.89-9.18
• Half angle of view: 7.75-2.07
• Image height: 21.64
• Overall length: 332.30-447.10
• Back focus: 38.50-92.00

Example 4

• Focal length: 199.98-980.38
• F-number: 6.43-9.18
• Half angle of view: 6.17-1.26
• Image height: 21.64
• Total length: 362.79-482.80
• Back focus: 38.64-100.15

More Canon patents are listed here.

[via asobinet]