MESPEFEFRBT2

MBSPEF-EFR-BT2

Metabones

Use this Metabones Canon EF Lens to RF-Mount T CINE Speed Booster ULTRA 0.71x (EOS-R) to adapt Canon EF-mount full-frame lenses to the new Canon RF mount. Filmmakers are now able to mitigate most of the 4k video crop factor of EOS-R (1.75x) and EOS-RP (1.63x), and reduce it to 1.24x and 1.15x respectively to support the newly EOS C70 (Super 35mm sensor). The field of view is now much closer to still photo mode. The Speed Booster is not intended for still photography but will work if the camera is configured to APS-C mode. It uses an advanced 5-element/4-group optical design by Caldwell Photographic, incorporating ultra-high index, tantalum-based optical glass to achieve extraordinary optical performance with improved corner sharpness, distortion, and reduced vignetting. The Speed Booster ULTRA has a magnification of 0.71x, effectively reducing the crop factor of 4k video on EOS-R and EOS-RP from 1.75x to 1.24x. It has a design that makes very effective use of exotic materials at the furthest limit of glassmaking technology, and as a result is well corrected for use with virtually all full-frame SLR lenses regardless of exit pupil distance. The Speed Booster ULTRA performs extremely well with professional-grade f/2.8 zoom lenses such as the 24-70mm f/2.8 and 70-200mm f/2.8 zooms by Canon to produce 17-50mm f/2.0 and 50-142mm f/2.0 high-speed zooms, respectively. Similarly, high-speed fixed focal length lenses including a 50mm f/1.2 will be transformed into a 35.5mm f/0.9 lens with excellent contrast and resolution from the center all the way to the edges of the image.Mechanical Patented positive-lock EF lens mountThe tripod foot is detachable and compatible with Arca-Swiss, Markins and Photo Clam ball headsFlocking to reduce internal reflectionSatin surface finishAluminum alloy and brass construction with chromium platingRubber gasket protects the RF mount connection from dust and moistureElectronic Autofocus speed is properly adjusted to account for and leverage the shorter focal length and the brighter maximum apertureDual-pixel autofocus (DPAF) and video AF supportIt is powered by the camera body as with most lenses, no external power source requiredLED indicator shows communication statusBuild-in multi-function control wheel (turn/ push-in) for assignable functions (eg. ISO, shutter speed or aperture control, depth-of-field preview)Store EXIF data (lens name, focal length, and maximum/minimum aperture) for one manual lens in the adapterImage stabilization (IS) lens supportFocal length and aperture are adjusted in EXIFOptical Increase maximum aperture by 1 stop with a maximum output aperture of f/0.9Advanced 5-element/4-group optical design incorporating ultra-high index tantalum-based optical glass by Caldwell PhotographicIncrease MTF and makes lens 0.71x widerCompatibility Canon RF camera (under APS-C crop mode)EOS-R, EOS-RP, EOS-R5, EOS-R6, EOS-C70RED Komodo cameraCanon EF-mount lensCanon EF-extender (teleconverter)Carl Zeiss EF-mount lensSigma EF-mount lensTamron EF-mount lensTokina EF-mount lensContax N mount lenses modified to Canon EF by ConurusContax 645 NAM-1 adapter modified to Canon EF by Conurus