Brightin Star MF 14mm F2.8 Full Frame

The Brightin Star MF 14mm F2.8 Full Frame is a manual focus ultra-wide prime for full-frame mirrorless cameras. It is sold for Sony E, Canon RF, Nikon Z and Leica L and was introduced in June 2026. Brightin Star quotes an angle of view of 116 degrees and pitches the lens at landscape, architecture and astrophotography. It targets shooters who want a fast, rectilinear 14mm without paying for a native autofocus lens.

Optical design

According to Brightin Star the lens has 13 elements in 9 groups. The maker describes near-zero distortion and strong edge-to-edge sharpness, which are manufacturer claims and not independent measurements. The aperture runs from F2.8 to F22 with 10 blades, which the maker says produce 10-point sunstars. The minimum focus distance is 0.2 m. The data sheet lists a filter size of 82 mm. That is unusually large next to the 67 mm barrel diameter, so check it against the actual lens before buying filters.

Focusing and handling

Focusing and aperture are manual. The lens has no autofocus motor and no stabilizer, which is normal for this type of ultra-wide prime. With such a short focal length, depth of field is generous even at F2.8, so setting the focus ring by distance scale or using focus peaking is usually enough in the field.

Build and size

The weight depends on the mount: 496 g for Canon RF, 502 g for Leica L, 510 g for Sony E and 518 g for Nikon Z. The diameter is about 67 mm for all mounts and the length 75 to 80 mm, from the maker's hand-measured drawings. That is compact for a lens with this angle of view and aperture.

Where it fits

The database has no predecessor for this lens. For manual full-frame 14mm lenses the closest rivals are the 7artisans 14mm F2.8 for Sony E, Canon RF, Nikon Z and Leica L, the Artra Lab Latalumen 14mm f/2.8 V2 and the Samyang MF 14mm F2.8 for Canon RF and Nikon Z. If autofocus matters, the Samyang AF 14mm F2.8 FE is available for Sony E. The Venus Laowa 12mm F2.8 Zero-D is a wider alternative for several mounts.

Pros and cons

Pros

• 116 degree view with an F2.8 aperture
• 10 blades for 10-point sunstars
• 0.2 m close focus
• Four mounts at 496 to 518 g

Cons

• Manual focus only
• The listed 82 mm filter size looks unusual and is unconfirmed
• No weather sealing is mentioned
• Optical claims such as low distortion come from the maker

Verdict

The Brightin Star MF 14mm F2.8 Full Frame is a straightforward, fast ultra-wide prime for people who accept manual focus. Its data sheet is strong for the class, with 13 elements, 10 blades and a short close-focus distance. Independent test results will show whether the distortion and edge claims hold up.