How much does this cost to the nearest dollar?

Kenko 400mm F8 Mirror Lens Hood Canon EF Mount for Black 419 656
・Incredibly compact Mirror tele lens・The 400mm focal length(Full Frame) of the lens gives effective placed on a mirrorless camera body making it a 800 mm super-telephoto lens・Extremely compact and high-performance optical ・Due to the the silver deposition mirror, it has both high-performance and miniaturization・Focal Length Aperture,Minimum Aperture construction 2 groups 6 elements, Field of view 6° Full Frame)・Filter size Focus Distance 1 2.5 ・Focusing System Front inner Focusing,Manual-focus・Number of aperture Diaphragms 0 Incredibly compact Mirror tele lens (Overall Length 82mm)

Price is $394.00

Price: $393.78