---
title: "Brightin Star MF 12mm f/2.8"
brand: "Brightin Star"
mount: L-Mount
focal_length: 12
aperture: 2.8
angle_of_view: 123
lens_type: "Prime"
lens_category: ["Ultra-Wide Angle"]
weight: 550
year: 2025
weather_sealed: false
image_stabilization: false
price: 500
focus: "Manual"
filter_size: "None"
max_magn:
close_focus: 0.24
sku: "BS-1228-SGB"
diameter: 70
length: 97
date: 2026-08-02
draft: false
author: "Jan Wedekind"
featured_image: /lenses/brightinstar/brightinstar-12mm-f2-8.png
---

From Brightin Star:

> 15 elements in 11 groups — 2 ASPH, 2 high-refractive, 2 ED — deliver edge-to-edge clarity from cityscapes to the Milky Way. A 122.5° ultra-wide view with Japan OPTORUN coating for enhanced light transmission, a metal lens hood to block stray light, and a clicked aperture calibrated for accurate control. At f/8 or smaller the lens delivers a deep depth of field, keeping the whole image sharp for quick shots without focusing.

[Official Website](https://brightinstar.com/products/mf-12mm-f2-8-full-frame-ultra-wide)

No front filter thread — the bulbous front element sits behind a fixed petal hood. Filters mount at the rear instead, in a 34mm rear filter holder; a Natural Night rear filter ships in the box, with ND1000/ND64 available separately.

Reviews:

* Northlight Images: [Brightin Star 12mm f/2.8 manual focus lens for mirrorless](https://www.northlight-images.co.uk/brightin-star-12mm/), Keith Cooper, Jul 2026

YouTube:

* Ralph Mayhew Photography: [Brightin Star 12mm F2.8 MF: Ultra-Wide Magic for Landscapes & Astro for Nikon Z Mount](https://www.youtube.com/watch?v=aOTCR78b5TI), Sep 2025
* Keith Cooper: [The $200 Lens That Challenges Pro Glass? Brightin Star 12mm f/2.8](https://www.youtube.com/watch?v=PN9xSNFd7es), Sep 2025