Samyang 50mm T1.4 AS UMC
Excellent sharpness from an open aperture. Virtually no chromatic aberrations. Compatible with all major bayonet mounts.
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The photo version of the fast “fifty dollars” from the South Korean brand Samyang is compatible with all major bayonet mounts – from popular Nikon and Canon DSLRs to trendy mirrorless cameras with Micro 4/3 format matrices.
The optical scheme of the lens consists of 9 elements in 6 groups. At the same time, one of the lenses in the optical design is aspherical, as indicated by the AS symbols in the model marking, and another element is coated with a multi-layer UMC anti-reflection coating, designed to reduce light losses when it passes through the air gap and glass. The lens aperture has 8 petals, which allows you to get rounded outlines of objects in the blur zone, or, in other words, beautiful bokeh.
Due to the lack of an autofocus system on board, not every amateur photographer will have the lens at the right time. But for those who still dare to focus manually, the Samyang 50mm f/1.4 AS UMC provides all the necessary conditions for an accurate hit on the target: the focus distance scale is marked in detail on the lens body, and the smooth movement of the focus ring is implemented in the most flawless way. At least this is how the owners of the model and authoritative profile resources who have tested the lens in action speak of it.
The lens produces excellent sharpness in the centre of the frame, starting from the widest aperture. However vignetting at f / 1.4 is very pronounced. But this is a problem for all representatives of the detachment of high-aperture optics, which often does not interfere with portrait photography, but decorates the picture with its presence. As expected , the most razor-sharpness is achieved when the aperture is covered to f / 4-5.6.
The model has a highly specialized version for shooting video — Samyang 50mm T1.5 AS UMC VDSLR with gear rings for changing aperture and smoother focus shifting. The build quality of both modifications of the lens deserves high praise. Therefore, if the lack of autofocus is not a big problem, then the universal brainchild of Samyang deserves the closest attention to its person.