A few days ago we got a rumor suggesting Canon might be set to release a RF 5.2mm f/2.8 lens. Today we know a bit more.
As Nokishita added to their original rumor, the RF 5.2mm f/2.8 lens might indeed be a dual fisheye lens for VR (virtual reality) applications:
The product category of canon’s RF 5.2mm f/2.8 L Dual Fisheye seems to be a VR lens.
There is more. Months ago a Canon patent application was spotted that seems to be related to the rumored RF 5.2mm lens. The patent application P2021-51282A (Japan) discusses optical formulas for a stereo lens for a full frame mirrorless camera. From the patent literature:
PROBLEM TO BE SOLVED: To provide a small lens device that can obtain a natural stereoscopic effect by setting an appropriate length of a base line.
SOLUTION: A lens device (200) includes: a first optical system (201R); a second optical system (201L) arranged in parallel to the first optical system; and a lens mount unit (202) attachable to a camera body, the first and second optical systems each having a first optical axis (OA1), a second optical axis (OA2), and a third optical axis (OA3) in order from an object side to an image side. A distance (L1) between the first and second optical systems is larger than a dimeter (φD) of the lens mount unit, and a distance (L2) between the third axes of the first and second optical systems is smaller than the dimeter (φD) of the lens mount unit.
A RF 5.2mm f/2.8 lens for the EOS R full frame mirrorless system. Interesting times ahead.
A new Canon patent application suggests the company might have an interesting lens for the EOS R ecosystem up their sleeve.
Hi Lows Note spotted Canon patent application 2020-166234A (Japan), where optical formulas for an RF 8-15mm f/4 fish-eye lens are discussed. The lens seems to be pretty much the mirrorless counterpart to the EF 8-15mm f/4 fish-eye.
Canon patent application 2020-56995 (Japan) discusses the optical formula for an RF 8mm f/1.4 circular fisheye lens for the Canon EOS R full frame mirrorless camera system.
Focal length: 8.10 mm
F number: 4.00
Half angle of view: 90.84
Image height: 11.50 mm
Lens length: 66.13 mm
Back focus: 13.21 mm
This might be a patent that gets into production sooner or later. More Canon patent applications are listed here. Some particularly interesting patent applications we think might get into production are these:
The Laowa 4mm f/2.8 Fisheye lens as launched back in August 2019 for the MFT system.
Now Venus Optics announced the Laowa 4mm f/2.8 Fisheye for three more mount types, Canon EF-M (EOS M), Sony E, Fuji. And the best thing? It sells for $200.
Specifications:
Laowa 4mm F2.8 Fisheye
Focal length
4mm
Max aperture
f/2.8
Min aperture
f/16
Angle of view
210°
Format
Micro Four Thirds
Mount
Micro Four Thirds
Focus type
Manual Focus
Lens type
Fisheye
Optics
7 elements in 6 groups
Aperture blades
7
Min focus distance
8cm (3.15″)
Dimensions
25.5 x 45.2mm
Weight
135g
This new lens from Venus Optics has an ultra-wide field of view (210°) and obviously a lot of distortion. It almost sees behind itself, and it can be used or 360° panorama photography.
Only for today (12/11/2019) B&H Photo has the Lensbaby 5.8mm f/3.5 Circular Fisheye Lens (Canon EF mount) on sale at $159.95. Compare at $299.95. Free shipping.
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