Brightin Star 50mm f/2 Tri-Sight Lens Specifications
- Coverage: FX (full frame)
- Angle of View: 47° diagonal
- Optical Design:
- 7 elements in 6 groups
- 2 extra low dispersion, 4 ultra high refraction elements
- Aperture:
- f/2 to f/22 apertures, de-clicked
- 11-blade aperture diaphragm
- Rear mountable iris shape attachments (4 included: triangle, star, butterfly, clover)
- Filters: 37.5mm front filter thread
- Other:
- 3-light path styles: smooth, prime, foams
- Retractable lens hood
- Detachable focus lever
- Focus:
- manual focus
- 28" (0.7m) minimum focus (varies with light path configuration)
- DOF markings at f/2, f/4, f/8, f/11, f/16
- Size and Weight:
- 2.9” (74mm) long
- 2.7” (68mm) diameter
- 16 ounces (454g) weight
- Price: US$399
- Announced: September 28, 2026
