{"product_id":"metabones-nikon-f-g-m4-3-speed-booster-ultra-0-71x","title":"Metabones Nikon F(G) - M4\/3 Speed Booster Ultra 0.71x - Accessory","description":"\u003cp\u003eMetabones Speed Booster Ultra uses an advanced 5-element 4-group optical design incorporating ULTRA-high index tantalum-based optical glass. The new design of Ultra version 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. The Speed Booster is essentially a backwards teleconverter, effectively shortening the focal length of the lens that's attached. This model act as a 0.71x focal length multiplier lens.\u003c\/p\u003e","brand":"Metabones","offers":[{"title":"Default Title","offer_id":41447210877126,"sku":"egvzpp","price":0.0,"currency_code":"CZK","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0521\/9496\/7750\/products\/speedboosterultra-3250-AH_921e0d66-707b-4340-8814-f529cf0ee88b.jpg?v=1642459373","url":"https:\/\/kamerastore.com\/en-cz\/products\/metabones-nikon-f-g-m4-3-speed-booster-ultra-0-71x","provider":"Kamerastore","version":"1.0","type":"link"}