B00OU9DNF6 Opteka 500-1000mm Preset Telephoto Lens for Panasonic Lumix DMC G9, GH5, GX850, G85, GX8, G7, GM5, GH4, GX7, GH3, GH1, Olympus Pen E-PL7, P5, PL5, PM2, PL1, PL2 Micro Four Thirds Digital Cameras

Make sure this fitsby entering your model number.
HD, super multicoated glass optics with anti-reflection coating for the sharper images
Manual focus, digitally-optimized telephoto zoom lens
Great for the wildlife or nature photographer who wants to be hidden while taking photos of the subject
Gives you the equivalent of looking through a pair of 20x power binoculars
4 Elements in 4 groups