Optical

• Canon EF lens for Blackmagic Design cameras with M43 mount, especially for BMPCC4K
• increase the maximum aperture by 1 aperture (with a maximum exit aperture of f / 0.9) increase MTF
• extends the focal length by factor 0.71x, patented optical 6-element / 4-group design

Electronic

• The aperture of the lens is set using the controls on the camera body
• Smooth iris support with the latest lens models Canon (2009+), Tamron (SP series 2013+) and Sigma (2016+).
• Image stabilization (IS) lens holder
• Auto focus if supported by the camera
• Cinema EOS lens support (CN-E 18-80mm T4.4 L), including AF (requires external 5V power supply via micro USB connection), auto iris and servo zoom power supply through the camera body
• Most lenses do not require an external power source

Mechanical

• Flocking to reduce internal reflection
• the rubber seal protects the M43 assembly connection from dust and moisture
• Aluminum alloy and brass construction with chrome plating, satin finish

Compatible cameras

• BlackMagic Pocket Cinema Camera 4K
• BlackMagic Pocket Cinema Camera HD (original ver.)
• BlackMagic Micro Cinema Camera
• BlackMagic Micro Studio Camera 4K
• BlackMagic Studio Camera 4K
• BlackMagic Studio Camera

Compatible lenses

• Canon EF100-400mm f / 4.5-5.6L IS II USM
• Canon EF100-400mm f / 4.5-5.6L IS USM (I)
• Canon EF100mm f / 2.8L IS USM Macro *
• Canon EF135mm f / 2L USM
• Canon EF16-35mm f / 2.8L II USM *
• Canon EF17-35mm f / 2.8L USM
• Canon EF17-40mm f / 4L USM
• Canon EF200mm f / 2.8L II USM
• Canon EF24-105mm f / 4L IS USM (I)
• Canon EF24-70mm f / 2.8L II USM *
• Canon EF28-135mm f / 3.5-5.6 IS USM
• Canon EF28-70mm f / 3.5-4.5 II
• Canon EF28-80mm f / 3.5-5.6 III USM
• Canon EF300mm f / 2.8L IS II USM *
• Canon EF300mm f / 4L IS USM
• Canon EF400mm f / 5.6L USM
• Canon EF40mm f / 2.8 STM *
• Canon EF50mm f / 1.2L USM
• Canon EF50mm f / 1.4 USM
• Canon EF50mm f / 1.8 II
• Canon EF50mm f / 1.8 STM *
• Canon EF70-200mm f / 2.8L IS II USM *
• Canon EF70-200mm f / 4L IS II USM *
• Canon EF70-200mm f / 4L USM
• Canon EF70-300mm f / 4-5.6L IS USM
• Canon EF8-15mm f / 4L USM Fisheye *
• Canon EF85mm f / 1.2L II USM
• Sigma 135mm f / 1.8 DG HSM Art 017 *
• Sigma 18-35mm f / 1.8 DC HSM Art 013
• Sigma 24-105mm f / 4 DG HSM Art 013
• Sigma 24-35mm f / 2 DG HSM Art 015
• Sigma 30mm f / 1.4 DC HSM Art 013
• Sigma 35mm f / 1.4 DG HSM Art 012 *
• Sigma 50-500mm f / 4.5-6.3 DG OS HSM
• Sigma 50mm f / 1.4 DG HSM (not art)
• Tamron 10-24mm f / 3.5-4.5 VC HLD B023
• Tamron 18-250mm f / 3.5-6.3 A18
• Tamron 18-270mm f / 3.5-6.3 B003
• Tamron 24-70mm f / 2.8 VC USD A007 (G1)
• Tamron 28-300mm f / 3.5-6.3 A06
• Tamron 35-150mm f / 2.8-4 VC OSD A043
• Tamron 70-200mm F / 2.8 Di VC USD A009
• Tokina 11-16mm f / 2.8 AT-X PRO (I)
• Zeiss 18mm f / 3.5 ZE
• Canon EF extender (teleconverter)