CameraReview

Brightin Star AF 50mm f/1.4

Brightin Star · 50 mm · f/1.4

Brightin Star AF 50mm f/1.4

Score Breakdown

This product does not have an overall score yet.

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UNSCORED
What We Like
+Excellent bokeh and color rendering in real-world use
+Sharp, fast autofocus with reliable eye-tracking for video
+Substantial metal build quality at competitive $249 price point
+Minimal focus breathing for videography performance
+Bright f/1.4 aperture enabling strong background blur and low-light performance
Worth Knowing
−No physical aperture ring despite textured design suggesting one
−Significant vignetting at maximum f/1.4 aperture, improves at f/2.8 and f/4
−Occasional autofocus focus errors despite confirmed focus indication
−Average autofocus performance compared to native options

General

About This Lens
Brightin Star's first autofocus lens offers strong optics and build quality in an affordable APS-C package. The 50mm f/1.4 delivers excellent bokeh, reliable eye-tracking autofocus, and low-light performance, making it appealing for portraiture and video on mirrorless systems. However, the lack of a physical aperture ring, vignetting at f/1.4, and occasional focus inconsistencies limit its standing against established alternatives.
BrandBrightin Star
Release Year2023
Production Status
ⓘ
Current status of lens manufacturing (e.g., in production, discontinued).
In Production
Lens Mount
ⓘ
The lens mount will tell you what type of lens range you can fit onto the camera body. Often the same camera company will have different lens ranges for different cameras.
Sony E
System
ⓘ
Indicates which camera system the lens is designed to attach to.
Sony E
Maximum Format
ⓘ
Largest sensor size compatible with the lens.
APS-C

Physical

Lens Weight449 g
Lens Diameter
ⓘ
Width of the lens at its widest point
72 mm
Lens Length
ⓘ
How long the lens is from front to back.
78.8 mm
Front Filter Compatible
ⓘ
Some lenses are compatible with front filters, some are compatible with back filters and some are compatible with both. Front filters are usually more convenient to add and remove.
Yes
Front Filter Size
ⓘ
Diameter of attachable filters.
58 mm

Optics

Focal Range
ⓘ
Shortest to longest focal length of the lens (zoom range start - end )
50 mm
Aperture Range
ⓘ
Largest aperture at the lens's shortest focal length to longest focal length (aperture range start - end)
1.4
Focal Length Angle of View32°
Flange Focal Distance
ⓘ
Distance from lens mount to sensor.
18 mm
Diaphragm Type
ⓘ
Structure and design of the aperture
Automatic
Blades
ⓘ
Number of diaphragm blades in aperture
9020
Zoom Lens
ⓘ
Zoom allows you to vary the focal length, change between long shots and close-ups
No
Closest Focusing Distance
ⓘ
Minimum distance for a subject to be in focus.
50 cm01500
Autofocus ModeYes
Manual ModeYes
Manual Focusing RingYes

Features

Weather Sealing
ⓘ
Weather sealing capabilities will give you more confidence when shooting in unfavourable conditions.
No
Fluorine Coating
ⓘ
Coating to repel water and oil from lens elements.
No
Built In Lens HoodNo
Lens Hood TypePetal
Teleconverter
ⓘ
A teleconverter (extender) is an extra piece of equipment that fits between the lens and the camera body to enhance magnification
No
Image StabilizationNo

Construction

Elements
ⓘ
Lens elements refer to individual pieces of glass within the lens.
12
Groups8
Aspherical Elements
ⓘ
The number of aspherical lens elements which can help correct aberrations such as spherical aberration.
0
Bi Aspherical Elements
ⓘ
Elements with two non-spherical surfaces
0
Super Low Dispersion
ⓘ
Advanced elements further reducing chromatic aberration
0
CA Reduction
ⓘ
Built-in features to reduce chromatic aberration
0
Internal Focusing
ⓘ
Internal Focusing means that the lens does not change in size during focusing, and the front element does not rotate.
Yes