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Brightin Star MF 50mm f/1.05
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Brightin Star · f/1.05 · Canon RF mount

Brightin Star MF 50mm f/1.05

Where to buy — 2 offers
Mount
KEY FACTS
BrandBrightin Star
Release Year2026
Production StatusIn Production
Lens MountCanon RF
SystemCanon EOS R
What We Like
+Ultra-fast f/1.05 aperture enables exceptional low-light performance and cinematic shallow depth of field
+Compact, affordable pricing ($299.99 MSRP) for an f/1.05 full-frame prime lens
+Maintains sharpness even at maximum aperture with 10-element optical design and high-refractive elements
+15-blade aperture diaphragm produces smooth, rounded bokeh and circular highlights
+Multi-layer coating achieves 99.8% light transmission, reducing flare and ghosting
+Available in multiple mirrorless mounts (Sony E, Canon RF, Nikon Z, L-mount)
Worth Knowing
−No weather sealing; not suitable for wet or dusty conditions
−Manual focus only with limited focus distance markers (0.57m minimum), requiring deliberate focusing technique
−No autofocus or electronic contacts reduces convenience for fast-paced shooting
−Exhibits lateral chromatic aberration at f/1.05 and some spherical aberration that shifts focus when stopping down

General

Brand
Brightin Star
Release Year
2026
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.
Canon RF
System
ⓘ
Indicates which camera system the lens is designed to attach to.
Canon EOS R
Read our notes on general
The Brightin Star MF 50mm f/1.05 is a full-frame manual-focus prime lens for mirrorless cameras offering an ultra-fast maximum aperture and classic focal length for expressive depth of field and strong low-light performance. The 10-element 8-group optical design includes two high-refractive-index and two low-dispersion elements to maintain sharpness at maximum aperture. Its multi-layer coating achieves up to 99.8% light transmission to reduce flare and ghosting, while a 15-bladed aperture provides smooth bokeh. Priced at $269 USD, it's available for Sony E, Canon RF, Nikon Z, and L-mount cameras.

Physical

Lens Weight
606 g
Lens Diameter
ⓘ
Width of the lens at its widest point
68 mm
Lens Length
ⓘ
How long the lens is from front to back.
80 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)
1.05
Blades
ⓘ
Number of diaphragm blades in aperture
15020
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.
57 cm01500
Autofocus Mode
No