Samyang / Rokinon 21mm F1.4 ED AS UMC CS

Sony E

Review

The Samyang (also known as Rokinon in some markets) 21mm F1.4 ED AS UMC CS is a high-performance wide-angle lens designed specifically for Sony E-mount cameras. This lens is particularly appealing for landscape, architecture, and astrophotography enthusiasts, thanks to its fast aperture and wide field of view.

One of the standout features of the 21mm F1.4 is its impressive maximum aperture of F1.4. This allows photographers to shoot in low-light conditions without sacrificing quality, and also provides beautiful depth of field effects that can help isolate subjects beautifully within a wide-angle perspective. The lens construction includes 13 elements in 11 groups, incorporating extra-low dispersion glass that helps reduce chromatic aberrations. The result is crisp, sharp images throughout the frame, even at wider apertures.

When it comes to build quality, the Samyang 21mm F1.4 feels solid and well-constructed with a metal mount and a rubberized focus ring that allows for smooth manual focusing. The lens is also compact and lightweight, making it an ideal choice for photographers on the go. The design is geared towards those who appreciate a fully manual lens experience, as it lacks autofocus. While this may be a disadvantage for some, many enthusiasts enjoy the tactile control and precision it offers.

However, there are some downsides to consider. The lens isn’t equipped with autofocus, which can be limiting in fast-paced shooting scenarios like street photography or event coverage where quick, precise focusing is crucial. There may also be a learning curve for users not accustomed to focusing manually, especially in low-light situations or when shooting at wider apertures. Furthermore, distortion can be noticeable in certain situations, particularly when photographing straight lines and architecture, though this can usually be corrected in post-processing.

Pros and Cons

Pros

• Fast maximum aperture of F1.4 for low-light capabilities.
• Excellent sharpness and color rendition across the frame.
• Sturdy, high-quality build with a metal mount.
• Lightweight and compact design ideal for travel.
• Smooth manual focusing experience.

Cons

• Lack of autofocus may limit usability for some photographers.
• Potential for distortion, requiring correction in post-processing.
• Manual focusing may present a challenge in fast-paced situations.

Verdict

Overall, the Samyang / Rokinon 21mm F1.4 ED AS UMC CS is an excellent choice for photographers looking for a high-quality, wide-angle lens for their Sony E-mount camera. Its fast aperture and sharp optics are sure to please those who appreciate fine detail and low-light performance. However, the absence of autofocus means that it may not suit everyone’s shooting style. If you’re comfortable with manual focus or primarily shoot in controlled environments, this lens can be a great addition to your kit.