Canon Patent: RF 180mm f/3.5 Macro And RF 200mm f/4 Macro

Canon Patent

And here is a new Canon patent application and as most of them are, this one too is for RF-mount lenses.

asobinet.com spotted Canon patent application 2021-152568 (Japan). The patent application discusses optical formulas for both RF 180mm f/3.5 Macro and RF 200mm f/4 Macro lenses. The former lens might replace the EF 180mm F3.5L Macro USM, a lens that has already been discontinued.

PROBLEM TO BE SOLVED: To provide an optical system which is suitable for a macro lens and can suppress aberration fluctuation.

The optical system of each embodiment has an aperture aperture SP2 as a main focus aperture that determines (limits) the light beam of the open F number (Fno), and a positive refractive power arranged on the object side of the aperture aperture SP2. It has a front focus group LPF, a rear focus group LPR having a positive refractive power arranged on the image side of the aperture aperture SP2, and a negative refractive power arranged on the image side of the rear focus group LPR. It has a posterior group LN. The “group” as used herein means each group of lenses whose spacing changes during focusing.

Embodiment 1:

  • Focal length 171.00
  • F number 3.50
  • Half angle of view (°) 7.21
  • Image height 21.64
  • Overall length of optical system 194.49
  • BF 47.67
  • Magnification ∞ β = -1

Embodiment 2:

  • Focal length 174.43
  • F number 3.50
  • Half angle of view (°) 7.07
  • Image height 21.64
  • Overall length of optical system 189.49
  • BF 13.73
  • Magnification ∞ β = -1

Embodiment 3:

  • Focal length 140.00
  • F number 3.50
  • Half angle of view (°) 8.78
  • Image height 21.64
  • Overall length of optical system 177.49
  • BF 35.17
  • Magnification ∞ β = -1

Embodiment 4:

  • Focal length 194.00
  • F number 4.00
  • Half angle of view (°) 6.36
  • Image height 21.64
  • Overall length of optical system 202.49
  • BF 39.36
  • Magnification ∞ β = -1

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

Canon RF 100mm f/2.8L MACRO IS Review

RF 100mm F/2.8L Macro IS Review

Here is a review of one of the more interesting RF-mount lenses Canon released, the Canon RF 100mm f/2.8L MACRO IS.

At a glance:

  • RF-Mount Lens/Full-Frame Format
  • 1.4x Magnification with Autofocus
  • Aperture Range: f/2.8 to f/32
  • Minimum Focusing Distance: 10.2″
  • Super Spectra Coating
  • Smooth and Quiet Auto Focus
  • Optical Image Stabilization; Hybrid IS
  • Control Ring for Direct Setting Changes
  • 9-Blade Diaphragm
  • Weather-Sealed Construction

The video-review, courtesy of asobinet.com, is not spoken nor commented but rather self-explaining with short texts. Lots of tests and test charts.

More coverage of this outstanding lens is listed here.

Preorders in USA are open at $1,399: B&H Photo | Adorama. If you are based in UK we recommend Park Cameras. More worldwide preorders:

America: B&H Photo, Adorama, Amazon USA, Amazon Canada, Canon Canada, Canon USA
Europe & UK: Amazon DE, Amazon UK, Amazon IT, Wex Photo Video, Canon DE, Canon UK

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Canon RF 100mm f/2.8L IS MACRO Real Life Review

RF 100mm F/2.8L Macro IS Review

Here is another Canon RF 100mm f/2.8L IS MACRO review. This lens is getting a lot of well deserved attention.

At a glance:

  • RF-Mount Lens/Full-Frame Format
  • 1.4x Magnification with Autofocus
  • Aperture Range: f/2.8 to f/32
  • Minimum Focusing Distance: 10.2″
  • Super Spectra Coating
  • Smooth and Quiet Auto Focus
  • Optical Image Stabilization; Hybrid IS
  • Control Ring for Direct Setting Changes
  • 9-Blade Diaphragm
  • Weather-Sealed Construction

This time the Canon RF 100mm f/2.8L IS MACRO review comes from Irene Rudnyk. It’s a rela life review not a lab-setting rebiew. The RF 100mm Macro lens is not just for macro photography. The lens is well regarded also among portrait and wedding photographers.

More coverage of this outstanding lens is listed here. Preorders in USA are open at $1,399: B&H Photo | Adorama. If you are based in UK we recommend Park Cameras. More worldwide preorders:

America: B&H Photo, Adorama, Amazon USA, Amazon Canada, Canon Canada, Canon USA
Europe & UK: Amazon DE, Amazon UK, Amazon IT, Wex Photo Video, Canon DE, Canon UK

[via Fstoppers]

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Canon RF 100mm f/2.8L Macro IS Review – How Does It Hold Up?

Canon RF 100mm F/2.8L

A review of the Canon RF 100mm f/2.8L Macro IS lens. The Canon RF 100mm f/2.8L Macro IS was announced one month ago. It’s scheduled to ship in July 2021.

At a glance:

  • RF-Mount Lens/Full-Frame Format
  • 1.4x Magnification with Autofocus
  • Aperture Range: f/2.8 to f/32
  • Minimum Focusing Distance: 10.2″
  • Super Spectra Coating
  • Smooth and Quiet Auto Focus
  • Optical Image Stabilization; Hybrid IS
  • Control Ring for Direct Setting Changes
  • 9-Blade Diaphragm
  • Weather-Sealed Construction

TheCameraStoreTV posted their hands-on review of a pre-production version of the RF 100mm f/2.8L Macro.

Hands-on preview of a pre-production Canon RF 100mm f2.8L Macro IS USM. This lens is designed for close-up photography providing 1.4x magnification with autofocus. Watch to find out how this lens stacks up on Canon EOS Full-Frame Mirrorless Cameras.

Preorders in USA are open at $1,399: B&H Photo | Adorama. If you are based in UK we recommend Park Cameras. More worldwide preorders:

America: B&H Photo, Adorama, Amazon USA, Amazon Canada, Canon Canada, Canon USA
Europe & UK: Amazon DE, Amazon UK, Amazon IT, Wex Photo Video, Canon DE, Canon UK

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Canon RF 100mm f/2.8L Macro IS Announced, Preorders and Hands-on Reviews

RF 100mm F/2.8L Macro IS Review

Along with the development of the Canon EOS R3, Canon also announced the RF 100mm f/2.8L Macro IS lens.

At a glance:

  • RF-Mount Lens/Full-Frame Format
  • 1.4x Magnification with Autofocus
  • Aperture Range: f/2.8 to f/32
  • Minimum Focusing Distance: 10.2″
  • Super Spectra Coating
  • Smooth and Quiet Auto Focus
  • Optical Image Stabilization; Hybrid IS
  • Control Ring for Direct Setting Changes
  • 9-Blade Diaphragm
  • Weather-Sealed Construction

The Canon RF 100mm f/2.8L Macro IS is scheduled to ship in July 2021.

Preorders in USA are open at $1,399: B&H Photo | Adorama. If you are based in UK we recommend Park Cameras. More worldwide preorders:

America: B&H Photo, Adorama, Amazon USA, Amazon Canada, Canon Canada, Canon USA
Europe & UK: Amazon DE, Amazon UK, Amazon IT, Wex Photo Video, Canon DE, Canon UK

Press release:

From Up-Close To Far Away, New Canon RF Lenses Have You Covered

The Canon RF 100mm f/2.8L Macro IS USM lens is not only Canon’s first RF lens designed specifically for macro photography, but also the world’s first3 medium telephoto macro lens with a maximum magnification of 1.4x. The new lens, designed for both advanced photo enthusiasts and professionals, takes macro photography expression to the next level with the introduction of a spherical aberration (SA) control ring. The SA control ring allows users to change the character and appearance of the bokeh and obtain a softer focus effect with a simple turning of the ring to the desired result. Additional features of the Canon RF100mm F2.8L Macro IS USM include:

  • Optical Image Stabilizer with up to five stops of Shake Correction4.
  • When combined with a camera featuring In-Body Image Stabilizer, up to eight stops of shake correction5 is possible with coordinated operation of Optical and In-Body Image Stabilizer.
  • Hybrid IS helps to compensate for angular and shift camera shake during macro shooting.
  • High-speed, smooth and quiet auto focus with dual nano USM.
  • Customizable control ring that allows photographers to adjust exposure compensation, shutter speed, aperture or ISO.
  • Rugged Canon L-series dust and water-resistant design.

More after the break.

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How To Photograph Your Own Eye In Macro Mode (video tutorial)

Photograph Your Own Eye

Ever wondered how to photograph your own eye? I tried some years ago. It turned out to be a bit more complicated than I thought.

It wouldn’t probably have been that complicated if I had access to the video tutorial by The Giant World of Tiny Things. In 10 minutes they explain how to do, and it turns out it still needs some efforts to photograph your own eye :-)

[via DIY Photography]