Are These The Canon EOS R1 Specifications?

Nab 2023 Canon Eos R5 Mark Ii Canon Eos R8 CP+ 2024 Mark Ii Canon EOS Rf 24-50mm R6 Mark Ii Rf Mount Eos R6 Mark Ii Rf 300mm Rf 35mm Canon Eos R100 Rf 24mm F/1.8 Rf-s Canon Eos R7 Eos R100 Canon High Resolution Eos R R10 Eos C5 Canon Canon Eos R1 Eos R5c Canon Rf 16mm Rf 35mm F/1.2L EF Lenses Tilt-shift Lenses Rumor

A user on Weibo posted a set of alleged Canon EOS R1 specifications. Are they real? They might be.

Alleged Canon EOS R1 specifications (machine translated and partially manually corrected)

  • AI driven autofocus, enhanced iand high-speed identification of objects
  • Trajectory prediction of moving objects, intelligent item lock and focus tracking
  • 30MP stack-style dual gain imaging sensor
  • Faste electronic shutter, faster than any mechanical shutter
  • 1/1250s flash synchronization time
  • <0.8ms microsecond reading time
  • 1:3 lossy compression CRAW (compared to non-destructive compression)
  • Unlimited 40fps (1:2 CRAW) / 60fps (1:3 CRAW) continuous shooting, maximum 120fps full-function continuous shooting
  • 240fps burst mode and 1s preview
  • Enhanced dynamic range (better than EOS R3 and EOS R5)
  • Support 16Bit DGO-RAW shooting
  • In-camera stack RAW
  • 6.7K/60p & 4.2K/120p(APS-C)
  • 12bit Cinema RAW Light recording
  • Full frame/APS-C DCI/UHD 4K/120p C-log2 & C-log3 video recording

As always, take it with a grain of salt. All Canon rumors are listed here.

Canon Patent: 400mm F2.8, 500mm F4 And 600mm F4 Lenses

Canon Patent

New Canon patent for you, ladies and gentlemen. Canon patent application 2024009238 (Japan, published 01/19/2024) discusses optical formulas for three telephoto prime lenses, all for fullframe mirrorless cameras.

  • 400mm F2.8
  • 500mm F4
  • 600mm F4

From the patent literature:

  • [Problem] To obtain an optical system that is lightweight and in which aberrations such as chromatic aberration are well corrected.
  • [ Background Art] As a photographing optical system with a long focal length, a so-called telephoto type photographing system has an optical system with positive refractive power on the object side and an optical system with negative refractive power on the image side. optical system is known. A telephoto type photographing optical system is used, for example, in a single focus super telephoto lens.
  • In a super telephoto lens, generally, as the focal length becomes longer, axial chromatic aberration and lateral chromatic aberration occur more frequently. As a method for properly correcting these chromatic aberrations, it is known to increase the number of lenses arranged on the object side and have each lens share the function of correcting the chromatic aberrations. However, a lens placed on the object side of a super-telephoto lens tends to have a large effective diameter, and if the above-mentioned method is used to correct chromatic aberration, the weight of the photographic optical system increases.
  • In the photographing optical system of Patent Document 1, by arranging a positive lens made of a material having low dispersion and anomalous dispersion continuously from the object side, longitudinal chromatic aberration and lateral chromatic aberration can be corrected. I’m trying.
  • In order to further reduce the weight of the optical system, it is important to find an appropriate material and arrangement not only for the positive lens but also for the negative lens.
  • An object of the present invention is to provide an optical system that is compact and in which aberrations such as chromatic aberration are well corrected, and an imaging device having the same.

Example 1

  • Focal length: 392.00
  • F value: 2.90
  • Half angle of view: 3.16
  • Image height: 21.64
  • Total length: 360.03
  • Back focus: 31.01

Example 2

  • Focal length: 490.00
  • F value: 4.12
  • Half angle of view: 2.53
  • Image height: 21.64
  • Total length: 412.08
  • Back focus: 33.39

Example 3

  • Focal length: 588.00
  • F value: 4.12
  • Half angle of view: 2.11
  • Image height: 21.64
  • Total length: 476.08
  • Back focus: 33.21

All featured Canon patents are listed here.

[via asobinet]

Canon Patent: 15mm F4.5 And 10mm F3.5 For APS-C Mirrorless

Canon Patent

And here is one more Canon patent. Canon patent application 2024006604 (Japan, published 01/17/2024) discusses optical formulas for two wide prime lenses for mirrorless cameras with an APS-C imaging sensor.

  • 15mm F4.5
  • 10mm F3.5

From the patent literature:

  • An object of the present invention is to provide an optical system that can reduce the occurrence of ghosts while having high optical performance.
  • BACKGROUND ART: Wide-angle lenses are widely used for landscape photography, astronomical photography, and the like. Wide-angle lenses are required to have a wide angle of view and high optical performance.
  • Patent Document 1 discloses an optical system that has a wide angle of view and improved optical performance by employing a plurality of negative lenses on the object side to gently bend off-axis rays. ing.

Example 1

  • Focal length: 15.45
  • F value: 4.60
  • Half angle of view: 49.36
  • Image height: 18.00
  • Total length: 115.26
  • Back focus: 13.50

Example 2

  • Focal length: 9.97
  • F value: 3.50
  • Half angle of view: 49.63
  • Image height: 11.72
  • Total length: 72.73
  • Back focus: 10.06

Example 3

  • Focal length: 16.00
  • F value: 4.60
  • Half angle of view: 48.58
  • Image height: 18.14
  • Total length: 99.94
  • Back focus: 13.04

All featured Canon patents are listed here.

[via asobinet]

Canon Patent: 24-300mm F4-5.6, 24-400mm F4-5.6 And 20-240mm F4-6.3 Lenses

Eos R With Aps-c

Here is a new Canon patent application for what appears to be a bunch of slow zoom lenses. Kit lenses?

Canon patent application 2024005834 (Japan, published 01/17/2024) discusses optical formulas for three zoom lenses:

  • 24-300mm F4-5.6
  • 24-400mm F4-5.6
  • 20-240mm F4-6.3

From the patent literature:

  • [Problem] To obtain a high-performance zoom lens with a high zoom ratio while the entire system is compact.
  • [Background Art] In recent years, as an imaging optical system used in an imaging device, a small zoom lens with a high zoom ratio (high zoom ratio), high optical performance over the entire zoom range, and a short overall lens length has been used. That is what is required.
  • However, in the zoom lens disclosed in Patent Document 1, the Abbe number of the positive lens included in the first lens group is small, and when the zoom ratio is increased, the longitudinal chromatic aberration becomes large, especially at the telephoto end.
  • Accordingly, an object of the present invention is to provide a zoom lens having a high zoom ratio and high optical performance, while the entire system is small.

Example 1

  • Focal length: 24.72-291
  • F value: 4.12-5.77
  • Half angle of view: 37.35-4.25
  • Image height: 21.64
  • Total length: 175-258.9
  • Back focus: 13.81-68.61

Example 2

  • Focal length: 24.72-390
  • F value: 4.12-5.77
  • Half angle of view: 37.35-3.18
  • Image height: 21.64
  • Total length: 180-300.09
  • Back focus: 14.63-81.63

Example 3

  • Focal length: 20.6-240
  • F value: 4.12-6.3
  • Half angle of view: 42.48-5.15
  • Image height: 21.64
  • Total length: 174.99-284.99
  • Back focus: 14.63-81.63

[via asobinet]

Canon Displays A Concept VR/3D Lens For APS-C At CES 2024

Ces 2024

Canon put a concept lens on display at CES 2024. The lens appears to be for virtual reality (VR) and/or 3D applications.

Along with the lenses, Canon also displayed a PowerShot V-series camera for VR. Here the gear that has been put on display:

  • APS-C 3D VR lens
  • APS-C 3D stereoscopic lens
  • 360°/180° 3D VR camera

Canon already offers the RF 5.2mm F2.8L Dual Lens Fisheye lens for this kind of applications. It appears Canon is even more committed to VR. The images on top and below come from Weibo.

[via asobinet]

Canon Patent: RF-S 15-45mm F3.5-6.3 Lens For APS-C Imaging Sensors

Canon Patent

And here is another Canon patent application for the RF-S mount. Canon patent 2023182958 (Japan, published 2023-12-27) discusses optical formulas for a lens for the RF-S mount, 15-45mm F3.5-6.3.

From the patent literature:

  • An object of the present invention is to provide a zoom lens with good optical performance over the entire zoom range.
  • [Background Art] Conventionally, a lens has a first lens group with a negative refractive power and a second lens group with a positive refractive power, which are arranged in order from the object side to the image side, and includes a focal length in the standard range. Zoom lenses are known (see Patent Documents 1 and 2).
  • However, in the zoom lens disclosed in Patent Document 1, the entire lens system is large and it is not possible to achieve sufficiently high image quality. Furthermore, in the zoom lens disclosed in Patent Document 2, various aberrations such as spherical aberration and coma aberration are not sufficiently corrected.
  • An object of the present invention is to provide a zoom lens with good optical performance over the entire zoom range.

Example 1

  • Focal length: 15.36-43.10
  • F value: 3.60-6.44
  • Half angle of view: 35.76-17.59
  • Total length: 76.36-73.51
  • Back focus: 10.45

Example 2

  • Focal length: 18.45-43.10
  • F value: 4.10-6.44
  • Half angle of view: 31.58-17.59
  • Total length: 80.15-79.38
  • Back focus: 13.47-33.69

Example 3

  • Focal length: 16.23-43.10
  • F value: 3.61-6.44
  • Half angle of view: 32.27-17.59
  • Total length: 88.10-88.68
  • Back focus: 10.87

[via asobinet]