135mm lenses are often near the top of the list of desirable portrait lenses. Two that stand out right now are the Samyang AF 135mm f/1.8 FE and the Viltrox AF 135mm f/1.8 LAB FE. Both have a lot to offer at competitive prices, but there are some notable differences between them.
Coming to you from Dustin Abbott, this detailed video compares the Samyang AF 135mm f/1.8 FE and the Viltrox AF 135mm f/1.8 LAB FE head-to-head in a range of real-world situations. Weight is a major factor. The Samyang comes in significantly lighter, making it a better option for photographers who want a lens that's easy to handle over long shoots. For those who value portability, this can be a major plus, especially given the bulk of other 135mm lenses on the market.
On the other side, the Viltrox comes with notable strengths. One of the biggest advantages is autofocus performance. With dual VCM motors, the Viltrox offers faster and more reliable autofocus, especially during portrait sessions where every moment counts. The Samyang, with its single motor, just can’t quite keep up. This advantage extends to video work too, where the Viltrox maintains better focus stability without any noticeable pulsing—something that can make a big difference when shooting moving subjects or shifting from one focus point to another.
In terms of build quality, the Viltrox is heavier, but that weight comes from its more robust construction. Made with a magnesium alloy, it’s built to last. The Samyang uses engineered plastics. The Viltrox also brings some extra features like an aperture ring and an LCD screen, giving you more direct control over settings. If you’re someone who likes having physical controls right at your fingertips, this could make the difference.
Both lenses have their strengths and weaknesses, depending on what you're looking for. For those who want a lightweight, budget-friendly lens, the Samyang is a great choice. But if you need superior autofocus, better build quality, and a few more features for precise control, the Viltrox is the better option. Check out the video above for the full rundown from Abbott.
