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Canon EF 300mm f/4L IS USM Telephoto Lens for Canon SLR Cameras

Product Description :
Lens construction 15 elements in 11 groups
Ultra-low Dispersion glass with Fluorite elements inner focusing ring full-time manual focus image stabilizer IS
Closest Focusing Distance 15m 49 ft
Focal Length Maximum Aperture 300mm 140
Filter size 77mm