Canon FD 20 mm f/2.8, converted by G.L Optics into a cine prime with PL mount and T2.9 speed. It has a uniform 95 mm front diameter, 77 mm filter thread, and covers the full-frame 24 × 36 mm format.
The rehousing unifies focus and iris gear positions across the set and adds an iris with more blades for softer bokeh. The 180° focus rotation allows precise focus pulls; the 95 mm front diameter matches standard matte box clamp-on adapters.
Ideal for
Why Canon FD GL Optics Rehouse 20 mm f/2.8 (PL)
- Canon FD character – Rendering close to Canon K35, with gentle contrast and warm color rendition.
- Uniform set – Same 95 mm front diameter and gear positions across the entire set.
- Full frame – Coverage of 24 × 36 mm format for large-format cameras.
- PL mount – Stainless steel PL mount for professional cine cameras.
Key specs
| Type | Cine prime lens (rehousing) |
|---|---|
| Focal lengths | 20 mm |
| Max. aperture | T2.9 |
| Coverage | Full frame (24 × 36 mm) |
| Bayonet | PL (stainless steel) |
| Min. focus | 25 cm (10″) |
| Weight | 0.64 kg |
| Front diameter | 95 mm |
Construction and rehousing
| Original optics | Canon FD 20 mm f/2.8 |
|---|---|
| Rehousing | G.L Optics |
| Filter thread | 77 mm |
| Focus rotation | 180° |


