{"product_id":"metabones-nikon-g-to-e-mount-speed-booster-ultra","title":"Metabones Nikon G to E mount Speed Booster ULTRA","description":"\u003cdiv id=\"longdesc\"\u003e\n\n\u003cp\u003e\u003cu\u003e\u003cstrong\u003eSpeed Booster ULTRA\u003c\/strong\u003e\u003c\/u\u003e\u003c\/p\u003e\n\n\n\n\u003cp\u003e\u003cstrong\u003eSharper corners, less distortion, reduced vignetting \u003c\/strong\u003e\u003c\/p\u003e\n\n\n\n\u003cp\u003eNew optical design:  advanced 5-element\/4-group optical design incorporating ultra-high index tanatalum-based optical glass to achieve extraordinary optical performance with improved corner sharpness, distortion and reduced vignetting.\u003c\/p\u003e\n\n\n\n\u003cp\u003eLike the revolutionary original Metabones Speed Booster announced in January 2013, the Speed Booster ULTRA has a magnification of 0.71x, and so it effectively reduces the crop factor of mirrorless cameras with DX-sized sensors, such as Sony E-mount and Fuji X-mount cameras, from 1.5x to 1.07x.  However, the new ULTRA design 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 fullframe SLR lenses regardless of exit pupil distance. Thus, 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 and Nikon to produce 17-50mm f\/2.0 and 50-142mm f\/2.0 high-speed zooms, respectively.  Similarly, high-speed fixed focal length lenses such as 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.\u003c\/p\u003e\n\n\n\n\u003cp\u003e \u003c\/p\u003e\n\n\u003c\/div\u003e\n\n\n\n\u003ch3\u003eWhy Metabones®?\u003c\/h3\u003e\n\n\n\n\u003cp\u003eSince its inception, Metabones has been designing and manufacturing lens adapters recognized among professionals and enthusiasts as leaders in design and workmanship.\u003c\/p\u003e\n\n\n\n\u003cp\u003eContrary to the popular trend of other factories using an aluminum ring painted black on the camera-body-side, we instead take no short-cut but use precision-machined brass with chromium plating on both the camera-body and the lens sides of our adapters, in order to ensure smooth mounting, great appearance, and durability. The lens side of the adapter features a strong leaf-spring structure, strengthening the adapter-lens connection and ensuring tightness of the lens in order to reduce wear and prevent focus errors and optical alignment issues from appearing.\u003c\/p\u003e\n\n\n\n\u003cp\u003eMetabones uses matte-black treatment to keep internal reflection to a minimum in order to maintain the maximum optical quality possible with the lens.\u003c\/p\u003e\n\n\n\n\u003cp\u003eAll Metabones Adapters follow this tradition of uncompromising precision, robust build quality and outstanding finish. Our new Smart Adapter\u003csup\u003eTM\u003c\/sup\u003e series of products add industry-leading electronic interfacing technology from Canada, with true electronic control of the lens' aperture directly from the camera body.\u003c\/p\u003e\n\n\n\n\u003cp\u003eFeatures\u003c\/p\u003e\n\n\n\n\u003cul style=\"margin-left: 30px;\"\u003e\n\n\t\u003cli\u003eBoth camera-side and lens-side of the adapter are made of brass, precision-machined and plated with chromium.\u003c\/li\u003e\n\n\t\u003cli\u003eSatin surface finish - just like your OEM lens and camera mounts.\u003c\/li\u003e\n\n\t\u003cli\u003ePrecise fit and solid connection - lens has no play, gap or wiggling when mounted on adapter and no adjustments are required to fit your lens.\u003c\/li\u003e\n\n\t\u003cli\u003eDesigned to reach infinity focus while maintaining the correct registration distance required to maintain optical quality of CRC lenses or lenses with floating elements.\u003c\/li\u003e\n\n\u003c\/ul\u003e\n\n\n\n\u003cp\u003eOur Smart Adapter\u003csup\u003eTM\u003c\/sup\u003e  series adapters have the following additional features\u003c\/p\u003e\n\n\n\n\u003cul style=\"margin-left: 30px;\"\u003e\n\n\t\u003cli\u003eTrue electronic integration of aperture diaphragm - let camera automatically choose aperture in P or S exposure modes, or dial in yourself on the camera body in A or M modes.\u003c\/li\u003e\n\n\t\u003cli\u003eEXIF data such as lens identification, focal length and aperture.\u003c\/li\u003e\n\n\u003c\/ul\u003e","brand":"Metabones","offers":[{"title":"Default Title","offer_id":47123517833444,"sku":"MB_SPNFG-E-BM2","price":332.5,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0707\/4647\/2676\/files\/MB_SPNFG-E-BM2_0ac113ea-6559-48fa-9920-32a970ac600c.jpg?v=1764765266","url":"https:\/\/progear-website.myshopify.com\/products\/metabones-nikon-g-to-e-mount-speed-booster-ultra","provider":"Progear-website","version":"1.0","type":"link"}