Summary
- The Brightin Star MF 50mm f/2 Tri-Sight is now available for Sony E, Nikon Z, Canon RF and L-Mount.
- Its dedicated ring selects Smooth, Prime or Foams and changes the character of the bokeh.
- Rear-mounted inserts create different shapes in out-of-focus highlights.
- The current official-store sale price is $349.99.
The Brightin Star MF 50mm f/2 Tri-Sight is now available, bringing three different approaches to out-of-focus rendering to a manual full-frame 50mm lens.
The lens was shown earlier in 2026 and is now commercially available for Sony E, Nikon Z, Canon RF and L-Mount. Brightin Star’s official store lists it at a $349.99 sale price, compared with a stated regular price of $399.99.
Its defining feature is a third ring, in addition to focus and aperture controls, with Smooth, Prime and Foams positions for different bokeh rendering styles.
Smooth, Prime and Foams from the same lens
Smooth produces softer, more diffuse out-of-focus areas, Prime is the more neutral option, and Foams creates more pronounced ring-shaped highlights. The change happens mechanically inside the lens.
The third ring moves an internal optical group and changes the correction of spherical aberrations, allowing photographers and filmmakers to alter the visual character without changing lenses.
Shaped bokeh with dedicated inserts
The creative options also include rear-mounted bokeh inserts. These fit at the back of the lens and change the shape of out-of-focus highlights, with designs including a star, triangle, butterfly and clover.
This feature is especially relevant for portraits, still life, night photography and video where background light sources are an active part of the intended visual style.
Technical specifications
The Tri-Sight is a manual-focus lens with a stepless aperture ring. Its optical design uses 7 elements in 6 groups, while the diaphragm has 11 blades. The aperture range is f/2 to f/22 and the angle of view is 47°.
| Format | Full Frame |
| Focal length | 50mm |
| Aperture | f/2–f/22 |
| Optical design | 7 elements in 6 groups |
| Aperture blades | 11 |
| Angle of view | 47° |
| Focus | Manual |
| Filter | 37.5mm ultra-thin |
| Mounts | Sony E / Canon RF / Nikon Z / L-Mount |
The diameter is approximately 68mm across all versions. Depending on the mount, length ranges from around 70 to 74mm and weight from approximately 429 to 454 grams.
Price and availability
The Brightin Star MF 50mm f/2 Tri-Sight is sold through the company’s official online store for Sony E, Nikon Z, Canon RF and L-Mount. The current sale price is $349.99, while the listed regular price is $399.99.
No official European price in euros was found during the check.
More information here.
What we think
The Tri-Sight is not simply another manual 50mm lens. Its main appeal is the ability to change rendering directly in-camera, together with the dedicated bokeh inserts, which can be useful when background aesthetics are part of the creative intent.
The lack of autofocus limits its usefulness for fast action, but in controlled photo and video work its unusual rendering options are exactly what set it apart.
Frequently asked questions
What are Smooth, Prime and Foams?
They are the three positions of the dedicated rendering ring. Smooth produces softer bokeh, Prime offers a more neutral rendering, and Foams creates more pronounced ring-shaped highlights.
Does it have autofocus?
No. The Brightin Star 50mm f/2 Tri-Sight is a manual-focus lens.
Which mounts are available?
It is available for Sony E, Nikon Z, Canon RF and L-Mount.
What do the bokeh inserts do?
They mount at the rear of the lens and change the shape of out-of-focus highlights.
How much does it cost?
The current official-store sale price is $349.99, compared with a listed regular price of $399.99.
