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.
|Model name||AF 14mm F2.8 RF|
|Aperture range||F2.8 ~ 22|
|Lens optical construction||15 Elements in 10 Groups|
|Special lens||3 Aspherical, 2 Extra Low Dispersion, 1 High Refractive|
|Minimum focusing distance||0.20m (7.9")|
|Maximum magnification ratio||x 0.12|
|Filter size||Rear Gelatin Filter Holder
|Number of blades||7|
|Angle of view||Full Frame||113.9 ˚|
|AF/MF mode switch||Yes
|AF Motor||Linear stepping motor|
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