The Samyang / Rokinon 20mm F1.8 ED AS UMC is a wide-angle prime lens designed for Nikon F (DX) mounts. This lens has garnered attention for its impressive build quality and optical performance, making it a noteworthy option for both amateur and professional photographers looking to expand their lens collection.
One of the first things you'll notice about the Samyang 20mm is its robust construction. The lens has a solid metal housing, which not only gives it a premium feel but also enhances durability. The focus ring is well-damped and provides smooth, precise manual focusing, which is essential in low-light conditions or when capturing intricate details. The compact size and light weight make it an excellent companion for travel, allowing you to carry it around without feeling burdened.
In terms of optics, the Samyang 20mm F1.8 employs a complex optical design featuring a number of special glass elements, including ED (Extra-low Dispersion) glass and aspherical lenses. This design minimizes chromatic aberration and distortion, resulting in sharp images across the frame from corner to corner. At the maximum aperture of f/1.8, the lens performs admirably, producing lovely bokeh that can add an artistic touch to portraits and still life photography. However, some users may find that light falloff can occur at wider apertures, so it's worth testing your specific shooting conditions.
This lens is particularly versatile, excelling in a variety of settings, from landscape photography to astrophotography. The wide field of view is perfect for capturing expansive vistas and intricate architectural details. Given its fast aperture, it also shines in low-light situations, making it a solid choice for indoor shooting or nighttime landscapes.
One of the more significant drawbacks of the Samyang 20mm is the lack of autofocus, which may deter some photographers who rely heavily on this feature for quick shooting needs. Instead, the lens focuses manually, which can be a challenge for those not used to this method. While manual focusing allows for more precision in some instances, it can also slow down a shoot, particularly in fast-paced scenarios.
The Samyang / Rokinon 20mm F1.8 ED AS UMC is an excellent option for Nikon F (DX) mount users looking for a versatile and high-quality wide-angle lens. With its solid build, impressive optical performance, and travel-friendly size, it stands out in its category. However, potential buyers should consider the lack of autofocus and the learning curve associated with manual focusing. Overall, this lens is an outstanding choice for photographers willing to embrace the challenges it presents.