Announced: August 15, 2016 (Sony E, Sony FE)
Announced: October 25, 2019 (Canon RF)
Marketed 2016
Original Price $699
Product ID: S20G29019
Model: SYIO14AF-RF
UPC: 084438766332
Serial # DHP13533
Lens Firmware Ver. 03
Minimum Focusing Distance: 0.20m (7.9")
Maximum Magnification: 0.12x
Lens Construction: 14 elements in 10 groups
Special Elements: 3 Aspherical, 2 Extra Low Dispersion, 1 High Refractive
Lens Coating: Ultra Multi-Coating
Filter size: Rear Gelatin Filter Holder
No. of Diaphragm Blades: 7
Image Stabilization: No
Focus Drive System: Linear stepping motor
Minimum Aperture: 22
Angle of View: 113.9° Diagonal
Internal Focusing: Yes
Full Time Manual Focus: Yes
Weather Sealed: Yes
Lens Hood: Built-In Petal Shape
Size (Diameter x Length): 86 x 95.3mm (3.39" x 3.75")
Weight: 484g (17.1 oz)
Lens Mounts Available: Sony E, Canon RF
The Samyang SYIO14AF-RF was specifically designed for Canon RF mount. Its 113.9 degree ultra-wide angle view at this writing the widest available for any autofocus prime lens available for Canon R series mirrorless cameras. Samyang’s array of wide angle lenses are highly regarded for their high performance, value and affordability, and this AF 14mm is no exception.
Most Canon R series camera users have to utilize an EF/EFS type lens plus an expensive mount adapter to enjoy the performance of an autofocusing ultra-wide angle prime lens. The resulting size and weight is not ideal for a mirrorless camera. Since this lens was designed exclusively to prioritize the user experience of Canon RF mount mirrorless cameras, the length of the flange back and its overall length and weight were reduced to enhance balance and usability. This reduction in the weight of the focusing lens also allows for faster and quieter AF performance.
Optically, the AF Samyang 14mm for RF mount lens offers a bright f2.8 aperture and a rounded seven blade aperture for pleasing bokeh and star effects. Its 14 element/10 group design utilizes UMC anti-reflective coatings plus six special elements (3 Aspherical, 1 High Refractive Index, and 2 Extra-low Dispersion) to provide minimum distortion and outstanding full frame image quality from corner to corner.
Additional features include a Manual I Auto Focus switch, dust and moisture resistant weather sealing, a built in lens hood, a high strength aluminium alloy housing, and a rear filter holder to allow the use of gel filters without vignetting.
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From the Samyang Optics website:
The world’s first AF 14mm F2.8 for RF mount is designed for users to enjoy a broader perspective
in mirrorless cameras. The compact lens design dedicated to mirrorless cameras is packed with 113.9 degree of broad angle of view and fast and precise autofocus function.
To meet the growing market for mirrorless cameras and user needs, Samyang introduces the world’s first AF 14mm F2.8 lens dedicated to RF mounts. In addition to MF 14mm F2.8 and MF 85mm F1.4, you can meet Samyang Optics’ optical technology with AF.
The compact lens design dedicated to mirrorless cameras eliminates the need for adapters, resulting in shorter flange back. Experience a compact mirrorless camera lens that is only 9.5cm long and weighs 484g.
40 years of optical R&D technology has created the minimum distortion for this ultra wide angle lens. Enjoy a broader perspective of 113.9 degree with minimum distortion and deep and spacious image.
Among 14 lenses in 10 groups, 6 special lenses are used to effectively adjust the light flow and reduce the abberation. 3 aspherical lenses, 1 high reflective lens and 2 extra-low dispersion lens provides impressive image quality from corner to corner of image.This lens is the best partner for your outdoor photography with the enhanced features.
Weather sealing protects the lens from dust, light rain and snow, AF-MF coverting switch enables you to capture the fine details and rear filter holder at the mount also gives you the choices of images you can create.
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In 2021, Samyang (also sold under the Rokinon brand) abruptly removed its autofocus RF-mount Full Frame lenses from its website and ceased production after Canon had issued cease and desist legal warnings to third-party manufacturers.
Canon believes that these products infringe their patent and design rights and has therefore requested the company to stop all activities that infringe Canon’s intellectual property rights.
Firmware Version 3
Date 2020-11-19
Details [R5, R6]
- Support IBIS (In-body Image Stabilizer)
- Improved High-Speed Continuous Shooting (H, H+)
- Improved Movie DIS (Digital IS)
- [R, RP, Ra]
- Improved High-Speed Continuous Shooting (H)
- Improved High-Speed Continuous Shooting (H, H+)
- Improve DIS (Digital IS)
Firmware Version 2
Date 2020-09-22
Details Improved AF-S/AF-C function
- Improved aperture error on video mode
- Improvement for IBIS function and high-speed continuous for Canon R5/R6 cameras is under review at the moment
Purchased from eBay June 10, 2026 $344.99
