---
title: "Brightin Star 9mm f/5.6"
brand: "Brightin Star"
mount: L-Mount
focal_length: 9
aperture: 5.6
angle_of_view: 132
lens_type: "Prime"
lens_category: ["Ultra-Wide Angle"]
weight: 423
year: 2023
weather_sealed: false
image_stabilization: false
price: 400
focus: "Manual"
filter_size: "None"
max_magn: 0.07
close_focus: 0.2
sku: "BS-956-SGB"
diameter: 64
length: 88
date: 2026-08-02
draft: false
author: "Jan Wedekind"
featured_image: /lenses/brightinstar/brightinstar-9mm-f5-6.png
---

From Brightin Star:

> A 132° ultra-wide-angle lens developed for full-frame mirrorless cameras — truly ultra-wide, and not a fisheye. With an almost zero-distortion design, the pictures taken have no exaggerated distortion and the real scenery in front of you is presented. Excellent optical structure, using 16 elements in 11 groups, equipped with two aspherical lenses, 2 ED (low dispersion) lenses and 3 refractive glass elements. With a closest focusing distance of 20cm, this lens has a very strong close-up capability which, combined with a very wide angle of view, enables it to take very unique images. The lens adopts 5 aperture blades, so light will be diffracted to produce 10 pins of asterism when shooting night scenes.

[Official Website](https://brightinstar.com/products/mf-9mm-f5-6-full-frame-ultra-wide-l-mount)

No front filter thread — the raised front element sits inside a fixed all-metal petal hood. A 34mm built-in ND1000 filter (10 stops) is fitted instead, allowing long exposures in bright sun; ND64 and Natural Night filters are sold as bundle options.

Reviews:

* phillipreeve.net: [Review: Brightin Star 9mm 5.6](https://phillipreeve.net/blog/review-brightin-star-9mm-5-6/), BastianK, Nov 2023
* Sony Alpha Blog: [Brightin Star 9mm F5.6](https://sonyalpha.blog/2024/02/13/brightin-star-9mm-f5-6/), Marc Alhadeff, Feb 2024
* Alpha Shooters: [Brightin Star 9mm F5.6 Review](https://www.alphashooters.com/reviews/brightin-star-9mm-f5-6-review/), Bernard Déry, Oct 2024
* Lost in Woodlands: [Brightin Star 9mm F5.6 – Ultra Wide-Angle in Action](https://www.lostinwoodlands.com/en/2025/11/21/brightin-star-9mm-f5-6-ultra-wide-angle-in-action/), Álvaro Lamas, Nov 2025

YouTube:

* Christopher Frost: [Brightin Star 9mm f/5.6 lens review (full-frame)](https://www.youtube.com/watch?v=Bn4LebLiD-U), Dec 2023
* Richard Wong: [One feature that sets it apart - Brightin Star 9mm f/5.6 (Full Frame E/Z/L/RF)](https://www.youtube.com/watch?v=LoAwMKfQF80), Dec 2023
* Andrei Dima: [This Beautiful Ultra Wide Angle Lens Has A Secret: Brightin Star 9mm f5.6 Review](https://www.youtube.com/watch?v=WBh59_VPH68), Feb 2024
* Rage Studios: [Brightin star 9mm f5.6 ultra wide rectilinear lens review](https://www.youtube.com/watch?v=v_InAg_1FZM), Jul 2025