Canon Patent: 200-500mm f/4 and 300-800mm f/8 Lenses

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A new Canon patent was spotted. The patent refers to two super zoom lenses. Again, as it seems, for the RF mount

Canon patent application 2022/0035144 (USA) discusses optical formulas for a 200-500mm f/4 lens and a 300-800mm f/8 lens. Other lenses discussed in the patent literature are 200-400mm f/4 and 150mm f/5 – 600mm f/6.5. These too might be for the RF mount.

Example 1

  • Focal length: 206.00-485.01
  • F value: 4.09-4.10
  • Half angle of view: 6.00-2.55
  • Image height: 21.64
  • Overall length: 486.99
  • Back focus: 53.96

Example 3

  • Focal length: 154.55-585.00
  • F value: 5.10-6.51
  • Half angle of view: 7.97-2.12
  • Image height: 21.64
  • Overall length: 288.00-388.00
  • Back focus: 15.00-95.75

Example 4

  • Focal length: 205.00-390.00
  • F value: 4.10
  • Half angle of view: 6.02-3.18
  • Image height: 21.64
  • Overall length: 367.09
  • Back focus: 46.68

Example 5

  • Focal length: 305.00-774.99
  • F value: 8.09-8.10
  • Half angle of view: 4.06-1.60
  • Image height: 21.64
  • Overall length: 489.78
  • Back focus: 100.04

More Canon patent applications are listed here. Some particularly interesting patent applications we think might get into production are these:

[via asobinet.com]

Today Only: MeFOTO GlobeTrotter Aluminum Travel Tripod Kit (Red) – $119.95 (reg. $219.95)

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I am a sucker for travel tripods, and only today B&H Photo has a 45% discount on the MeFOTO GlobeTrotter Aluminum Travel Tripod Kit (Red).

At a glance:

  • Load Capacity: 26.4 lb
  • Max Height: 64.2″
  • Min Height: 16.1″
  • Folded Length: 16.1″
  • Leg Sections: 5
  • Weight: 4.6 lb
  • Converts to Monopod
  • Arca-Type Compatible Ball Head
  • Separate Head and Pan Lock
  • Carrying Case with Strap Included

Get the MeFOTO GlobeTrotter Aluminum Travel Tripod Kit (Red) on sale at $119.95. Compare at $219.95.

More selected deals:

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No, The Rumored Canon EOS C5 Is Not The Previously Rumored EOS C50

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Edit: We just learned that cameras have started to morph. We were utterly wrong in our original post: the EOS C5 is not the EOS C50 that was rumored previously Instead, the C50 morphed to become the C5. Apparently because of the global pandemic. It’s not yet clear if other cameras will also start to shape-shift. We keep you posted.

After our (weak) rumor about a possible Canon EOS C5 Cinema camera, new murmurings have surfaced from the interweb of rumor mills.

It’s suggested the Canon EOS C5 is the previously rumored Canon EOS C50. We do not agree. While both rumors are better taken with a grain of salt, we do not see any resemblance between the two rumors.

Canon EOS C50Canon EOS C5


– Super 35mm 4K sensor (same as the Cinema EOS C200)
– No IBIS
– RF Mount
– Internal ND (10 Stops)
– CLog 2 & CLog 3
– 4:2:0 8bit internally onto SD cards up to 4K60 & 1080/120
– 4:2:2: 10bit external in HD
– No RAW
– Dual LP-E6NH battery slot		– The camera is a combination of the EOS R5 C and EOS C300 III, similar in appearance to the EOS R5 C, but more square, with the electric ND filter of the EOS C300 III, the professional interface of the EOS C70, and an extended battery compartment.
– Its XF-AVC recording format is the same as the EOS C70, but it uses a modified version of the EOS R5 C’s CMOS sensor with a total of 22.5 megapixels.
– With a sampling resolution of 8192×2160, it is capable of perfect oversampling to 4K 120fps, making it Canon’s current 4K 120fps product with the best image quality.
– When the frame rate is reduced to 72fps or less, DGO mode is turned on to provide higher dynamic range.
– Unlike the current EOS C70, it does not offer RAW recording for now.
– Full pixel QPAF, and RAW internal recording in subsequent firmware.
– In terms of photography, it no longer offers a mechanical shutter and is replaced by in-body stabilization.

I can’t see anything that might suggest these cameras are one and the same model. Any thoughts?

Source: Canon Rumors

Canon EOS R7 The Next Camera Canon Is Set To Announce (is the white unicorn coming)?

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Here is a new, hot rumor about the alleged Canon EOS R model with an APS-C sensor. Is a Canon EOS R7 coming?

Canon Rumors reports that the Canon EOS R7 might be the next camera the company is going to announce. Unfortunately, despite coming from a “source with a pretty solid record“, the rumor doesn’t tell much but that the announcement of the Canon EOS R7 might happen in March 2022.

We have always been rather skeptical about the possibility of Canon making an EOS R model with APS-C sensor. Truth to be told, we are now slightly less skeptical. Some Canon patents suggest RF-S lenses (i.e. lenses for the RF mount and an APS-C imaging sensor) are at least considered in Canon’s R&D labs. Never the less, we still have a somewhat hard time buying the possibility of an EOS R model with APS-C. On the other hand, it’s likely that the EOS 7D Mark II and EOS 90D might not get a replacement. Which would give some credit to the white unicorn hypothesis (i.e. EOS R with APS-C).

Any thoughts…?

Canon Patent: RF 20mm f/1.8, RF 24mm f/1.8, RF 28mm f/1.8 Lenses

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A new Canon patent application, once more for RF mount lenses.

Canon patent application 2022-20096 (Japan) discusses optical formulas for a bunch of RF mount lenses: RF 20mm f/1.8, RF 24mm f/1.8, RF 28mm f/1.8.

From the patent literature:

PROBLEM TO BE SOLVED: To provide an optical system having good optical performance, easy to manufacture and compact. However, when the optical system of Patent Document 1 is widened, the off-axis aberration increases as the angle of view increases. In order to satisfactorily correct the increased off-axis aberration, it is necessary to arrange a lens having a large diameter in the front group, which is the focus group, on the object side, which leads to an increase in the size of the optical system. Furthermore, since the mass of the focus group also increases, a high-output actuator is required when performing autofocus, which may lead to an increase in the size of the actuator. An object of the present invention is to provide an optical system having good optical performance, easy to manufacture, and a small size, and a lens device and an image pickup device having the same.

Example 1

  • Focal length: 28.60
  • F value: 1.85
  • Half angle of view: 37.1
  • Image height: 20.15
  • Overall length: 81.00
  • Back focus: 13.20

Example 2

  • Focal length: 20.60
  • F value: 1.85
  • Half angle of view: 46.4
  • Image height: 18.71
  • Overall length: 84.87
  • Back focus: 11.00

Example 3

  • Focal length: 24.72
  • F value: 1.85
  • Half angle of view: 41.2
  • Image height: 19.34
  • Overall length: 81.00
  • Back focus: 11.00

The patent application was spotted by asobinet.com. More Canon patent applications are listed here. Some particularly interesting patent applications we think might get into production are these:

These Might Be The Specifications Of One Of Canon’s Next Cinema Cameras (EOS C5?)

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We got a rumor from an unknown source. We report it as it is out of duty. Please take it with a grain of salt. Is a Canon EOS C5 coming?

We got tipped about a new, upcoming mirrorless Canon Cinema camera. A Cinema camera that seems to be closely related to the EOS R5/EOS R5 C. This is what we got:

  • The camera is a combination of the EOS R5 C and EOS C300 III, similar in appearance to the EOS R5 C, but more square, with the electric ND filter of the EOS C300 III, the professional interface of the EOS C70, and an extended battery compartment.
  • Its XF-AVC recording format is the same as the EOS C70, but it uses a modified version of the EOS R5 C’s CMOS sensor with a total of 22.5 megapixels.
  • With a sampling resolution of 8192×2160, it is capable of perfect oversampling to 4K 120fps, making it Canon’s current 4K 120fps product with the best image quality.
  • When the frame rate is reduced to 72fps or less, DGO mode is turned on to provide higher dynamic range.
  • Unlike the current EOS C70, it does not offer RAW recording for now.
  • Full pixel QPAF, and RAW internal recording in subsequent firmware.
  • In terms of photography, it no longer offers a mechanical shutter and is replaced by in-body stabilization.

The source suggested the moniker “Canon EOS C5“. Again, don’t forget the grain of salt. Please let me know what you think about this rumor. Anything to take seriously?