The Samyang / Rokinon 16mm F2 ED AS UMC CS is a wide-angle lens designed specifically for APS-C sensor cameras, making it a great choice for users of Canon's EF-M mount. With its fast f/2 aperture, this lens offers excellent performance in low-light conditions, providing a versatile option for landscapes, architecture, and street photography.
One of the standout features of this lens is its optical construction. Comprising 13 elements in 11 groups, including extra-low dispersion (ED) glass, it effectively minimizes chromatic aberrations and ensures sharpness from edge to edge. Photographers will appreciate the clarity and detail the Samyang 16mm delivers, even in challenging lighting situations. The UMC (Ultra Multi Coating) applied to the lens elements helps reduce flare and ghosting, resulting in vibrant colors and high contrast images.
In terms of build quality, the lens feels solid and robust. It's relatively lightweight, which makes it portable and easy to carry around for extended periods. The focus ring operates smoothly, allowing for precise manual focus adjustments, although users should be aware that this lens lacks autofocus. This may not be an issue for seasoned photographers who prefer manual control, but it could be a drawback for those accustomed to autofocus systems.
The 16mm focal length (equivalent to 25.6mm in 35mm terms) offers a wide field of view, making it perfect for sweeping landscapes and cramped interiors. However, the lens does present some distortion, especially at the edges. While this can be corrected in post-processing, it's something to consider if you strive for perfection in your architectural shots.
The Samyang / Rokinon 16mm F2 ED AS UMC CS is a strong contender in the wide-angle lens category for Canon's EF-M mount. Its exceptional image quality, fast aperture, and solid build make it a great choice for both enthusiasts and professionals alike. However, the lack of autofocus and the presence of distortion may deter some users. If you’re comfortable with manual focus and post-processing corrections, the creative possibilities with this lens are truly rewarding.