B074TXCFTW Opteka 500mm/1000mm f/8 Manual Telephoto Lens for Canon EF-M EOS M10, M6, M5, M3 and M Compact Digital Mirrorless Cameras

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Newest version achromatic refractor 500mm f/8 lens in T-mount
2x Teleconverter doubles the power of your lens to 1000mm.
High index, low-dispersion multi-coated HD optical glass to reduce flare
Built-in tripod collar for improved lens balance
Kit includes 500mm super telephoto preset lens, 2x doubler, t-mount, UV filter, lens hood, heavy-duty ir remote, lens pen, air blower, dust brush, empty spray bottle, 3×5″ lens tissues (50), standard microfiber (2), large microfiber