How much does this cost to the nearest dollar?

Metabones Canon EF Lens to Micro Four Thirds Camera Adapter, T CINE Speed Booster XL 0.64x Magnification (Fifth Generation)
A new mount Speed Booster adapter designed exclusively for the Panasonic GH4 and other selected Micro Four Thirds cameras, with a magnification of 0.64x. The Speed Booster XL 0.64x uses an advanced optical design to achieve extraordinary optical performance at apertures up to an incredible a new record for Micro Four Thirds format.The new Speed Booster XL 0.64x reduces the full-frame crop factor of the Panasonic GH4 from 2.0x to 1.28x, thus effectively transforming these cameras into APS-H format. When the GH4 is used in Cinema 4k video mode the horizontal

Price is $699.00
Price: $699