Follow us:
Another One Who Leaves Sony For Canon
It seems the season when people leaves Sony for Canon. Well done guys!
Glyn Dewis left Sony for Canon and in the video below he explains why.
Today Only: Vello Auto Extension Tubes for Canon Lenses (RF, EF) – $49.95 (reg. $79.95)
Only for today (12/5/2022) B&H Photo has a $30 discount on the Vello Auto Extension Tubes for Canon RF-Mount Lenses, for RF and EF mount lenses.
At a glance:
- Shortens Minimum Focus Distance of Lens
- Provides Macro Capability
- Maintains Autofocus & Auto-Exposure
- Durable Metal Mounts
- For Canon RF-Mount Lenses
- Includes 12 and 20mm Tubes
- Use Tubes Individually or Combined
- Lightweight and Durable Design
- No Optical Elements
Get the Vello Auto Extension Tubes for Canon lenses at $49.95:
More selected deals:
- Get Excire Foto (AI powered photo managment) with 15% discount by using code “canonwatch” at checkout
- Get Luminar NEO with a $10 discount, by using code “WATCH” at checkout
- USA: Canon USA | B&H Photo | Adorama | Amazon US
- Germany: Amazon Germany | Calumet Photo | Canon Germany
- UK: Amazon UK | Canon UK
- Refurbished lenses and DSLRs at Canon Store (best deals might be found here)
Today Only: IRIX 15mm f/2.4 Blackstone Lens (Canon EF) – $419 (reg. $599)
Only for today (12/5/2022) B&H Photo has a $180 discount on the IRIX 15mm f/2.4 Blackstone Lens for Canon EF mount.
At a glance:
- Canon EF-Mount/Full-Frame Format
- Aperture Range: f/2.4 to f/22
- Two Aspherical Elements
- Two ED and Three HR Elements
- Neutrino Coating
- Manual Focus Design with Focus Lock
- UV Fluorescent Engraved Markings
- Depth of Field and Focus Distance Scales
- Weather-Sealed Magnesium Alloy Housing
- Rounded Nine-Blade Diaphragm
Get the IRIX 15mm f/2.4 Blackstone Lens for Canon EF mount on sale at $419. Compare at $599.
More selected deals:
- Get Excire Foto (AI powered photo managment) with 15% discount by using code “canonwatch” at checkout
- Get Luminar NEO with a $10 discount, by using code “WATCH” at checkout
- USA: Canon USA | B&H Photo | Adorama | Amazon US
- Germany: Amazon Germany | Calumet Photo | Canon Germany
- UK: Amazon UK | Canon UK
- Refurbished lenses and DSLRs at Canon Store (best deals might be found here)
AstrHori 18mm F8 Shift Lens Might Get Released Soon (RF Mount)
Another third party lens for the RF mount might soon get announced, the AstrHori 18mm F8 Shift lens.
At a glance:
- Lens construction: 9 elements in 9 groups
- Angle of view: 99.2 degrees
- Shift amount: ±6mm
- Shortest shooting distance: 0.34m
- Filter size: 58mm
- Size: 62x36mm
- Weight: 164g
- Mount: Canon RF/Leica L mount
Chinese manufacturer Astrhori is said to soon release another RF mount lens, the AstrHori 18mm F8. Other Astrhori lenses are rumored to get announced.
[via asobinet]
TTArtisan 11mm F2.8 Fisheye Lens Announced (Canon RF)
A new lens for the RF mount, the TTArtisan 11mm F2.8 Fisheye
At a glance:
- RF-Mount Lens/Full-Frame Format
- Aperture Range: f/2.8 to f/16
- Fisheye Optical Design
- Manual Focus Operation
- Minimum Focusing Distance: 6.7″
- 7-Blade Diaphragm
- Built-In Lens Hood
The lens is available at $215 at B&H Photo and Adorama and Amazon.
TTArtisan 11mm f/2.8 Overview
Offering a uniquely wide angle of view, the TTArtisan 11mm f/2.8 is a fisheye lens designed for Canon RF-mount mirrorless cameras. The expansive field of view and distinct fisheye look is characterized by immense depth of field along with strong distortion for creating very striking and dynamic imagery. The wide-angle design is also complemented by a bright f/2.8 maximum aperture, to suit working in available lighting conditions, and the lens’s manual focus design permits working with subjects as close as 6.7″ away.
Ultra-wide prime is designed for full-frame Canon RF-mount mirrorless cameras.
Fisheye design renders an immensely wide angle of view to produce distinct visual appeal characterized by dramatic distortion and a creative depiction of space.
Manual focus design permits smooth, refined control along with a minimum focusing distance of 6.7″.
Built-in petal-shaped lens hood that helps to block stray light from causing lens flare and also offers some physical protection to the front of the lens.
Canon Patent: RF 70-300mm f/4.5-7.2 & RF 250-600mm f/6.3-11
A new Canon patent, and once more more for RF mount lenses (what else?).
Canon patent application 2022178447 (Japan, published 12/2/2022) discusses optical formulas for two zoom lenses for the RF mount:
- RF 70-300mm f/4.5-7.2
- RF 250-600mm f/6.3-11
From the patent literature:
A compact and lightweight zoom lens that has high optical performance over the entire zoom range is provided.
Description of the Related Art
In recent years, zoom lenses used in image pickup apparatuses are required to have high optical performance and to be compact and lightweight.
As a zoom lens that meets these requirements, Patent Document 1 discloses a zoom lens having first to fourth lens groups with positive, negative, positive, and positive refractive powers arranged in order from the object side to the image side, A zoom lens is disclosed in which the spacing between adjacent lens groups changes during zooming.
SUMMARY OF THE INVENTION
It is an object of the present invention to provide a compact and lightweight zoom lens that has high optical performance over the entire zoom range, and an imaging apparatus having the zoom lens.
Example 1
- Focal length: 103.01-387.98
- F-value: 6.30-8.24
- Half angle of view: 11.86-3.19
- Image height: 21.64
- Total length: 183.99-280.00
- Back focus: 32.00-122.21
Example 2
- Focal length: 103.01-347.20
- F-value: 5.13-8.24
- Half angle of view: 11.86-3.57
- Image height: 21.64
- Overall length: 198.72-267.94
- Back focus: 32.86-136.99
Example 3
- Focal length: 70.00-300.00
- F-value: 4.40-7.20
- Half angle of view: 17.17-4.12
- Image height: 21.64
- Total length: 165.01-231.87
- Back focus: 27.80-102.92
Example 4
- Focal length: 250.00-600.00
- F-value: 6.24-11.33
- Half angle of view: 4.95-2.07
- Image height: 21.64
- Overall length: 305.44-336.20
- Back focus: 29.45-163.77
More Canon patent applications are listed here. Some particularly interesting patent applications we think might get into production are these:
- RF 16-28mm lens with either f/2.8, f/2.8-4, or f/4
- Automatic shutter silencing based on subject and distance
- A bunch of prime lenses for the RF mount
- An improved Electronic Viewfinder
- Patent application for RF 50mm F1.4 and an RF 35mm f/1.4 lenses
- A zoom lens that might be for an EOS R with APS-C sensor
- A smaller IBIS unit.
- A cooling adapter for the RF mount (R5 overheating?)
- A bunch of macro lenses for the RF mount.
- A 8mm f/4 circular fisheye lens for the Canon EOS R system
- A battery grip that works with differently siszed cameras
- A 100-400mm f/5.5-7.1 lens for APS-C cameras. EOS M or DSLR?
- RF 17-70mm lens for EOS R system
- IBIS coming to the EOS M and PowerShot lineup?
- Patent Application: mirrorless camera with large display and virtual control wheel
- Patent Application: IBIS and Lens IS Working Together
- Patent application for high speed mirror movement and control
- Patent application for an RF 14-28mm f/2 lens
- Patent application for an RF 50mm f/1.8 lens
- Patent application for a smart lens cap
- Patent application for celestial auto-focus
- Patent application describing a Pop-Up Flash With LED
- Patent application describing the optical formula for a RF 70-300mm F/4-5.6 IS lens for EOS R systems
- Patent application describing how to improve burst rate by compressing raw files
- Patent application describing a new way to review photos from a sequential shot
- Patent application that describes technology to improve wireless communication while reducing power consumption
- Patent application to spot and reduce moire artefacts in image data
- Patent application for weather sealed lens adapter
- Patent application for AI powered predictive camera control system
- Patent application for 18-55mm kit lens with LCD display
- Patent application to reduce noise in image files
[via asobinet]