SUMMARY
Sigma has introduced the 50-120mm f/2.8 DC OS Contemporary, a telephoto zoom lens designed to be significantly smaller and lighter than typical f/2.8 zooms for APS-C cameras. This lens, available for Fujifilm X, Sony E, and Canon RF mounts, weighs approximately 400g and features optical stabilization. Testing on a Fujifilm X-T50 reveals good sharpness, particularly at the 80mm focal length, with minimal focus breathing for video. While autofocus can be slightly off in some frames, the lens offers a compact and versatile option for photographers seeking a fast telephoto zoom for crop-sensor systems.
TAKEAWAYS
Sigma's 50-120mm f/2.8 DC OS Contemporary is a compact, stabilized telephoto zoom for APS-C cameras.
The lens weighs around 400g and is smaller than some full-frame f/4 zooms.
It offers good sharpness, especially at 80mm, and minimal focus breathing for video.
Available for Fujifilm, Sony, and Canon crop bodies, it costs $799.