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Opteka 500mm f/8 High Definition Telephoto Mirror Lens for Panasonic Lumix DMC G1 GH1 GF1 G10

Product Description :
High definition optics produce sharper more intense pictures
Incredibly compact and lightweight Fully Multi-coated Manual Focus
Soft pouch and three 3 rear mounted 305mm filters ND-2X ND-4X Skylight
May be combined with the Opteka 2X Multiplier for 1000mm Zoom Sold separately - 47st Photo Item Code B000JSZ41S
10 Year Warranty