The Brightin Star 28mm f/2.8 is a wide-angle prime lens for M-mount rangefinder cameras. It is designed and manufactured by Brightin Star, a Chinese photographic equipment manufacturer. The lens is known for its compact size, classic look, and affordable price.
Design and Specifications
The Brightin Star 28mm F2.8 XSlim Pro-M has an optical construction of six elements in five groups. It has a maximum aperture of f/2.8 and a minimum aperture of f/16. The lens has a close focusing distance of 0.7 meters.
The lens has a variable aperture, unlike similar lenses that use a fixed aperture.
The lens has a diameter of 51.4 mm and a thickness of just 9.9 mm, making it one of the most compact 28mm lenses for rangefinder cameras on the market. The lens weighs approximately 125 grams.
The Brightin Star 28mm f/2.8 is made of brass and painted black. The lens feels good in the hand and the focus and aperture rings rotate smoothly and precisely. The lens comes with a lens hood and a lens pouch.
Compatibility
The Brightin Star 28mm f/2.8 is compatible with Leica M-mount rangefinder cameras, such as the Leica M6 or Minolta CLE. It can also be used with other cameras with an M-mount, but an adapter may be required.
Technical datasheet
| Attribute | Specification |
|---|---|
| Widest aperture | f/2.8 |
| Smallest aperture | f/16 |
| Minimum focus distance | 70 cm |
| Number of elements | 6 |
| Number of groups | 5 |
| Number of aperture blades | 9 |
| Filter thread | 25.5 mm |
| Weight | 125 g |
| Company name of the brand | Hong Kong Brightin Star Optical Technology Co., Ltd. |
| Country of production | China |
| Price orientation | 300 US-Dollar |