Metabones SPNFG-M43-BM4 – Nikon G to Blackmagic Pocket Cinema Camera 4K Speed Booster ULTRA 0.71x
GTIN: 4897050182512
0.71x focal reducer with aperture ring for Nikon F and G lenses, optimised for the Blackmagic Pocket Cinema Camera 4K.
Metabones SPNFG-M43-BM4 – Nikon G to Blackmagic Pocket Cinema Camera 4K Speed Booster ULTRA 0.71x
This Speed Booster version is redesigned for the 2.4 mm filter stack of Blackmagic cameras rather than the 4 mm of standard Micro Four Thirds, and is dedicated to the Pocket Cinema Camera 4K. It reduces the BMPCC4K crop factor from 2.02x to 1.43x and adds 1 stop of maximum aperture, up to f/0.9.
Features
- 0.71x magnification and 1 stop more maximum aperture (up to f/0.9)
- Increases MTF; patented 6-element/4-group design by Caldwell Photographic (USA)
- Works with Nikkor G and F lenses: G series, AF-D, AI-P, AI-S, AI and non-AI
- Click-less aperture ring with an 8-stop scale showing the actual number of stops
- Rubber gasket on the mount, aluminium and chrome-plated brass, satin finish
- Detachable Arca-type tripod foot matched to the BMPCC4K body height, with 1/4"-20 thread
Note: Do not use on standard Micro Four Thirds cameras: it may damage them. Manual aperture only, no autofocus or stabilisation; the Nikkor 2.1cm f/4, AI-S 20mm f/2.8 and E-series lenses are not compatible.
Specifications
| Lens mount | Nikon F / G |
|---|---|
| Camera mount | Blackmagic Micro Four Thirds: Pocket Cinema Camera 4K, Pocket Cinema Camera HD, Micro Cinema Camera, Micro Studio Camera 4K, Studio Camera 4K, Studio Camera |
| Magnification | 0.71x |
| Aperture gain | +1 stop (max f/0.9) |
| Electronics | none (manual aperture) |
| Metabones code | MB_SPNFG-M43-BM4 |
| Product Condition | New |
|---|---|
| Manufacturer | Metabones |
| manufacturer code | SPNFG-M43-BM4 |
| Ean | 4897050182512 |
Write Your Own Review





