How much does this cost to the nearest dollar?

Sigma 10mm f/2.8 EX DC HSM Fisheye Lens for Canon Digital SLR Cameras (OLD MODEL)
Product Description Sigma EX 2,8/10 fisheye DC HSM C/AF for Canon Amazon.com Designed for use with Canon digital SLR cameras equipped with APS-C size image sensors, the Sigma 10mm f/2.8 fisheye lens offers a uniquely exaggerated and distorted close-up perspective that's perfect for arty, off-kilter shots. This Canon version offers an impressive diagonal angle of view, along with a minimum focusing distance of 5.3 inches and a maximum magnification ratio of 1 3.3. As a result, subjects can sit as close as 0.7 inches from the lens's front

Price is $649.00
Price: $649