Smartscope 5 mp 200x4/2/2023 Flocking material coating to reduce the internal reflection.Detachable tripod foot compatible with Arca Swiss, Markins and Photo Clam ball heads.Distance and zoom display on camcorders (requires lenses supporting distance information).EXIF (focal length, aperture, zoom range).EF 85/1.2L II and discontinued EF 50/1.0L) Iris/aperture controlled by the camera body.Can be powered either by camera body or by third-party external 5V power source (not included).Patented 5-element/4-group optical design incorporating ultra-high index tanatalum-based optical glass by Caldwell Photographic in the USA.Although our first and foremost priority is accuracy, we are able to make great strides in autofocus speed as well. We are pleased to report that Panasonic Micro Four Thirds camera bodies are capable of autofocusing accurately even if the maximum aperture of the Speed Booster and the lens combined is in the sub-f/1.0 range. New in Speed Booster ULTRA for Canon EF Mount to Micro Four Thirds is autofocus on Panasonic camera bodies, subject to certain limitations (see table above for details). Even the latest generation of ultra-high performance SLR lenses such as the Zeiss Otus series can be improved by adding a Speed Booster ULTRA m43. (More information can be found in the pressĪutofocus with an Optimum Balance of Accuracy, Speed, Consistency and Reliability Optical performance of the new Speed Boosters is so good that the MTF of any lens attached to it will be improved. The Speed Booster ULTRA m43 will also work extremely well with many DX and APS-C format lenses provided the image circle of the lens is large enough. However, the new ULTRA design makes very effective use of exotic materials at the furthest limit of glassmaking technology, and as a result is almost perfectly corrected for use with all fullframe SLR lenses regardless ofĪperture. Like the revolutionary original Metabones Speed Booster® announced in January 2013, the Speed Booster ULTRA m43 has a magnification of 0.71x, and so it effectively reduces the crop factor of mirrorless Micro Four Thirds mount cameras from 2.0x to 1.4x. However, the new design is specifically optimized for the Micro Four Thirds sensor and filter stack, and as a result achieves an astonishing level of performance that sets a new standard for focal reducers. Like the ULTRA series for Sony E-mount, the new Speed Booster ULTRA m43 uses an advanced 5-element 4-group optical design incorporating ultra-high index tantalum-based optical glass. Always Enhance and Never Degrade the Performance of the Attached Master Lens
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