B001GKRRJ0 Opteka 500mm/1000mm High Definition Preset Telephoto Lens for Sony Alpha A99, A77, A65, A58, A57, A55, A37, A35, A33, A900, A700, A580, A560, A550, A390, A380, A330 and A290 Digital SLR Cameras

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f/8-16, High-index / low-dispersion optical glass, Fully multi-coated, every element, Anti-reflection coating
Designed to maximize day and night shots by providing maximum light and image transmission with minimum distortion, Fantastic for all types of photographic situations
Great for the wildlife or nature photographer who wants to be hidden while taking photos of the subject
500mm Preset Lens, 2x Multiplier, Carrying bag, and lens caps included!
10 Year Warranty