Samyang 20mm T1 9 ED AS UMC Review | 54 Data compared

The Samyang 20mm f/1.8 ED AS UMC lens receives a mediocre overall score of 6.2 out of 10, with the reviewer concluding it only barely passes in terms of optical performance. On the positive side, the lens boasts notable build quality, smooth mechanical adjustments, and good portability, making it a highly practical option for video creators who rely heavily on precise manual focus. It is particularly recommended for Nikon video users looking for a budget-friendly alternative to the more expensive Nikkor 20mm f/1.8, while Canon users are advised that the native Canon EF 20mm f/2.8 USM offers superior optical quality at a identical price point. Optically, the lens suffers from several flaws, scoring lowest in vignetting (4.5) and lateral chromatic aberrations (5.5). The reviewer notes that both the lateral chromatic aberrations and low contrast are major weaknesses, alongside poor sharpness in the mid-corners of the frame. Furthermore, photographic ergonomics are hindered for Canon users due to the aperture ring being positioned too close to the lens mount. Despite these drawbacks, the lens offers decent color rendering, scoring an 8 out...

The Samyang 20mm f/1.8 ED AS UMC review by Digital Camera Lens introduces this full-frame manual ultra-wide-angle lens, positioning it between the brand's older 14mm and 24mm models. Originally launched in 2016 for approximately €450 (photo version) and €550 (video version), the lens features a solid 13-element, 12-group optical construction, weighs 497 grams, and spans a horizontal 94.8-degree angle of view. The evaluation highlights its high versatility across multiple camera mounts—including Canon EF, Nikon F, and Sony E—and notes that it is highly appealing for videographers due to its smooth manual adjustments, especially when compared to much pricier native options. When weighed by its pros and cons, the lens scores notable marks for its overall build quality, structural adjustments, and decent portability. Its primary optical performance is deemed "acceptable" for its budget-friendly market tier, serving as a competitive choice over more expensive lenses like the Nikkor 20mm f/1.8 or Sigma 20mm f/1.4 Art. However, the review highlights several critical weaknesses, noting that the mid-corners of the frame need improvement and that there is a noticeable presence of vignetting. Furthermore, the...

The Samyang V-AF prime lens series for Sony E-mount cameras represents a lightweight, highly uniform option optimized heavily for video and gimbal use. Tested in 24mm, 35mm, and 75mm focal lengths (with a 45mm available and a 20mm planned), all lenses in the lineup share an identical weight of 280 grams, a uniform physical size, and a T1.9 (f/1.8) aperture. This design triumph keeps the center of gravity consistent across lenses, allowing filmmakers to swap focal lengths on gimbals like the DJI RS 3 Pro without needing to rebalance the setup. Key physical features include a 300° focus throw with linear manual focus for repeatable movements, a custom switch to toggle the focus ring into an aperture controller, a focus hold button, and built-in front and side tally lights that turn red when recording. Additionally, a unique front conector with electronic pins is designed to support upcoming exclusive accessories like electronically controlled filters. Optically, the lenses deliver a neutral look, a smooth bokeh, and consistent colour performance across the different focal lengths. Autofocus performance is smooth, tailored for cinematic video...