Canon Patent: 50mm f/4 IS Macro And 90mm f/4 IS Macro

Canon Patent
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Canon patent application 2024010559 (Japan, published 01/24/2024) discusses optical formulas for two macro lenses for the RF mount:

  • 50mm f/4 IS Macro
  • 90mm f/4 IS Macro

From the patent literature:

  • An object of the present invention is to provide a compact and high-performance optical system in a macro lens, in which a focus lens group is made lighter and smaller, achieving higher focus stop precision and faster focusing speed.
  • BACKGROUND ART
    A macro lens is known as a lens capable of close-up photography. In recent years, there has been a demand for a macro lens that has high optical performance with little aberration variation in the entire focus region.
  • Patent Documents 1 and 2 disclose macro lenses that correct aberration fluctuations during focusing by moving a large focus lens group during focusing.
  • However, in the macro lenses described in Patent Documents 1 and 2, the actuator becomes large in order to move a large focus lens group, and the focus lens group becomes large, resulting in a decrease in focus stop accuracy and focus speed. There was a problem.
  • The present invention provides a compact and high-performance optical system in a macro lens by reducing the weight and size of the focus lens group, achieving high focus stop precision and high speed focusing speed.

Example 1

  • Focal length: 111.29
  • F value: 4.12
  • Half angle of view: 11.00
  • Image height: 21.64
  • Total length: 125.00
  • Back focus: 34.03
  • Magnification: 1.0

Example 2

  • Focal length: 90.00
  • F value: 4.12
  • Half angle of view: 13.52
  • Image height: 21.64
  • Total length: 120.00
  • Back focus: 21.58
  • Magnification: 1.0

Example 3

  • Focal length: 110.00
  • F value: 4.12
  • Half angle of view: 11.13
  • Image height: 21.64
  • Total length: 119.99
  • Back focus: 43.07
  • Magnification: 0.5

Example 4

  • Focal length: 52.00
  • F value: 4.12
  • Half angle of view: 22.59
  • Image height: 21.64
  • Total length: 115.00
  • Back focus: 24.18
  • Magnification: 1.0

Venus Optics Announces Laowa 90mm f/2.8 2X Ultra Macro APO For MILCs

Laowa 90mm
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A new Laowa lens has been announced, and it is for mirrorless cameras.

Venus Optics announced the Laowa 90mm f/2.8 2X Ultra Macro APO lens. The video below introduces the new Laowa lens.

Click here to learn more about the new Laowa lens.

Laowa 90mm f/2.8 2x Ultra Macro APO is specifically designed for mirrorless cameras with full-frame sensors size. With its fascinating 2:1 magnification capability and focus to infinity, the lens can capture subjects in any size, making it very versatile for different applications including macro, commercial and portrait photography. It is super compact and lightweight, the size of the lens is significantly smaller than other equivalents on the market. An apochromatic (APO) characteristic is equipped even in high magnification to provide outstanding image quality.

The Laowa 90mm f/2.8 2X Ultra Macro APO

Canon TS-E 90mm f/2.8L MACRO review (highest quality and exciting creative possibilities, ePhotozine)

Canon TS-E 90mm F/2.8L MACRO
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Canon TS-E 90mm f/2.8L MACRO at a glance:

  • EF-Mount Lens/Full-Frame Format
  • Aperture Range: f/2.8 to f/45
  • One Ultra-Low Dispersion Element
  • One Aspherical Element
  • Air Sphere Coating
  • Maximum Tilt: +/- 10°
  • Maximum Shift: +/- 12mm
  • Minimum Focusing Distance: 1.3′
  • Maximum Magnification: 0.5x

ePhotozine posted their full review of the new Canon TS-E 90mm f/2.8L MACRO. The TS-E 90mm f/2.8L MACRO is a highly specialised lens that’s not for everyone (and not for everyone’s budget, it’s $2,199).

From ePhotozine’s conclusion:

Some lenses gel straight away, others grow on us and this one grows on us very quickly as the new possibilities of mixing a 90mm lens with macro and tilt and shift start to fire the imagination.

This is a specialised optic that would be delightful to own, but at the price level will probably be for professional photographers with particular applications clear in their minds. It will be a workhorse and it will earn money.

In the general marketplace it is expensive, but if it’s affordable then it will not disappoint. Canon are to be congratulated for producing such a wide range of specialist tilt/shift lenses that break new ground and push back the boundaries of creativity. Read the review…

This is another masterpiece by Canon, though this lens will be bought mostly by professionals who need this very kind of specialised lens. ePhotozine gave the Canon TS-E 90mm f/2.8L MACRO a score of 4.5/5.

Canon TS-E 90mm f/2.8L MACRO: B&H Photo | Adorama | Canon USA | Amazon

Canon TS-E 90mm f/2.8L MACRO Review (a superb lens, Photography Blog)

Canon TS-E 90mm F/2.8L MACRO
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Canon TS-E 90mm f/2.8L MACRO at a glance:

  • EF-Mount Lens/Full-Frame Format
  • Aperture Range: f/2.8 to f/45
  • One Ultra-Low Dispersion Element
  • One Aspherical Element
  • Air Sphere Coating
  • Maximum Tilt: +/- 10°
  • Maximum Shift: +/- 12mm
  • Minimum Focusing Distance: 1.3′
  • Maximum Magnification: 0.5x

Photography Blog posted their full review of the new Canon TS-E 90mm f/2.8L MACRO lens.

From their conclusion:

The Canon TS-E 90mm f/2.8 L Macro Lens is a specialist lens, with a high asking price which probably excludes most ordinary enthusiasts from buying it. It does however make for an excellent option for rental, especially if you’re not sure if you want one – or if you have the patience to learn how to properly use it. Some of the more creative effects it produces can be a bit gimmicky, so again, renting it makes sense to see if you think you will get much use out of the effects.

Canon has produced a superb lens here, with excellent sharpness, high image quality and fantastic build quality. It is a more than worthy replacement for the older 90mm tilt shift lens, considering it now has “L” series designation and macro capability. Just like other tilt shift lenses, you pay a premium to own it, but for those who need one, you’re unlikely to be disappointed. Read the review…

Canon TS-E 90mm f/2.8L MACRO: B&H Photo | Adorama | Canon USA | Amazon

New Canon TS-E 45mm, 90mm and 135mm tilt-shift lenses coming August 2017? [CW3]

Canon TS-E 90mm F/2.8
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Rumor has it Canon may announce three new tilt-shift lenses at the end of August 2017. One of the new lenses might also have macro capabilities.

The rumored lenses are:

  • Canon TS-E 45mm f/2.8L
  • Canon TS-E 90mm f/2.8L
  • Canon TS-E 135mm f/2.8L Macro

Another lens is rumored since a while and said to be also announed at the end of August 2017, the Canon EF 85mm f/1.4L IS.

So far no specs nor pictures of the new lenses have leaked. If the rumored August announcement is to be taken seriously then specification and product pictures will soon leak on Japanese sites.

Stay tuned.