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![Metabones Speed Booster ULTRA Fuji X a Nikon G Metabones Speed Booster ULTRA Fuji X a Nikon G](https://fotografiarte.es/catalogo/14982-medium_default/metabones-speed-booster-ultra-fuji-x-to-nikon-g.jpg)
The F-Mount lens NIKON for Fujifilm X-Mount Camera Speed Booster ULTRA from Metabones improves over the original Metabones Speed Booster with a 5/4 optical design group element incorporating ultra-high glass refractive index
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ContactThe F-Mount lens NIKON for Fujifilm X-Mount Camera Speed Booster ULTRA from Metabones improves over the original Metabones Speed Booster with a 5/4 optical design group element that incorporates ultra-high tantalum-based glass refractive index to improve sharpness and reduction of distortion and vignettes. The Speed Booster ULTRA allows a full frame of the lens NIKON F-Mount to be mounted in an APS-C format of the X-Mount camera and in doing so, increases the angle of view and increases the maximum aperture by about one f/stop. It supports NIKKOR F-mount and F Mount G lenses including AI and non-AI mounts.
When a lens intended for full 35mm frame or film sensors is mounted on a camera with an APS-C size sensor, it transmits a larger area of light than the smaller sensor was built to accept and therefore the effective angle of view of the lens increases. The Speed Booster condenses the light from the lens and projects it onto the APS-C sensor which allows the sensor to use the entire lens' light and effectively reduces the crop factor of APS-C and E-Mount camera from 1.5x to 1.07x, producing a full frame angle of view with an APS-C sensor. A corresponding increase in the maximum aperture of one f/stop makes the lens more effective in low-light situations and capable of creating a depth of field.
Although the lens fits physically, the automatic diaphragm (AE Measurement), or other auto functions are not preserved the use of this speed booster. A built-in silent switch opening control ring allows manual control of the speed booster opening. This 8-stop ring with clearly marked half-stop marks is sent as Silent Switch but can be converted into "click" with the included ball click and spring. Speed Metabones Boosters are quality made, using precision machined brass with chrome plating on both the camera body and lens side of the booster dose in order to ensure smooth mounting, aesthetic quality, and durability. A matte black interior reduces internal reflections and a satin black split external surface with most camera bodies and lenses. This adapter has a detachable tripod foot that is compatible with the Swiss Ark, Markins and Photo Clam ball joints.
The F-Mount lens NIKON for Fujifilm X-Mount Camera Speed Booster ULTRA from Metabones improves over the original Metabones Speed Booster with a 5/4 optical design group element incorporating ultra-high glass refractive index