Key Specifications
- Focal Length: 5.8mm (approximately 8.9mm full-frame equivalent on APS-C).
- Aperture Range: f/3.5 to f/22.
- Angle of View: 185°, allowing it to capture subjects slightly behind the camera.
- Minimum Focus Distance: 0.25 inches (approx. 6mm) from the front element, enabling extreme macro-fisheye photography.
- Dimensions & Weight: 7.62 cm long with a weight of 298g (10.5 oz).
- Filter Thread: None (due to the extreme bulbous front element).
Core Features & Design
- Circular Image: Optimized for APS-C sensors where the circle fills much of the vertical frame. On Full-Frame Sony cameras, the circle appears much smaller and is surrounded by a larger black border.
- Polished Internal Barrel: Features a reflective inner barrel that purposefully creates flare, light spills, and “halo” reflections around the image circle when pointed toward light sources.
- Manual Control: A purely manual lens with no electronic contacts; users must manually set both focus and aperture on the lens body.
- Focusing Aids: Includes both a distance scale and a hyperfocal scale on the barrel to assist with focus.
![[USED] LENSBABY 5.8 f_3.5 Circular Fisheye (E-Mount)-1](https://capa.co.th/wp-content/uploads/2026/03/USED-LENSBABY-5.8-f_3.5-Circular-Fisheye-E-Mount-1.png)






















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