• Increase maximum aperture by 11/3 stop. (with a maximum output aperture of f/0.80)
    • Increase MTF
    • Makes lens 0.64x wider
    • Optics designed by Caldwell Photographic in the USA (patent pending)
    • When using with "passive" (without electronic control pin) MFT camcorders/cameras, such as BMCC 2.5K MFT and Digital Bolex D16 MFT, the Speed Booster must be powered by external power source via Micro-USB socket. Input Voltage is 5V DC (Battery is NOT included in the box)
    • When using with "active" (with electronic control pin) MFT camcordrs/cameras, such as BMPCC MFT, the Speed Booster can be powered by camera body. no external power source required
    • Build-in electonics to control lens aperture
    • The Lens aperture is set by the dial button on the adapter.
    • High performance 32-bit processor and efficient switched-mode power supply
    • The tripod foot is detachable and compatible with Arca Swiss, Markins, Photo cam ball heads
    • Flocking material coating inside the inner hole to reduce the internal reflection
    $ 689.0
    • Increase maximum aperture by 1 2/3stop. (with a maximum output aperture of f/0.74)
    • Increase MTF
    • Makes lens 0.58x wider
    • Optics with 6 elements in 4 groups, designed by Caldwell Photographic in the USA (patent pending)
    • Build-in electronics to control lens aperture
    • The Lens aperture is set by the controls on the camera body
    • Powered by camera body. no external power source required
    • High performance 32-bit processor and efficient switched-mode power supply
    • The tripod foot is detachable and compatible with Arca Swiss, Markins and Photo Clam ball heads
    • Flocking material coating inside the inner hole to reduce the internal reflection
    $ 689.0
    • Increase maximum aperture by 11/3 stop (with a maximum output aperture of f/0.80)
    • Increase MTF
    • Makes lens 0.64x wider
    • Optics designed by Caldwell Photographic in the USA (patent pending)
    • When using with "passive" (without electronic control pin) MFT camcorders/cameras, such as BMCC 2.5K MFT and Digital Bolex D16 MFT, the Speed Booster must be powered by external power source via Micro-USB socket. Input Voltage is 5V DC (Battery is NOT included in the box)
    • When using with "active" (with electronic control pin) MFT camcordrs/cameras, such as BMPCC MFT, the Speed Booster can be powered by camera body. no external power source required
    • Build-in electonics to control lens aperture
    • The Lens aperture is set by the dial button on the adapter
    • High performance 32-bit processor and efficient switched-mode power supply
    • The tripod foot is detachable and compatible with Arca Swiss, Markins, Photo cam ball heads
    $ 678.77