What are the alternatives to the panasonic lumix g 100 300mm f 4 5 6 ii?

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From Panasonic Lumix G 100-300mm f/4-5.6 II: Panasonic Lumix G 100-300mm f/4-5.6 II: A zoom lens by Panasonic for Micro Four Thirds cameras, 100-300mm f/4-5.6. Specs - Maker: Panasonic - Focal length: 100-300mm (zoom) - Maximum aperture: f/4-5.6 (it gets darker as you zoom in) - Made for: Micro Four Thirds sensors - Mounts: Micro Four Thirds - Stabilised: yes - Autofocus: yes What it frames like - On Micro Four Thirds (Micro Four Thirds): like 200-600mm on full frame; f/4-5.6 gives about ...

From Wildlife and sport: Reach: Focal length is the first thing to sort out. - Sport from the sideline and larger animals: 70-200mm to 100-400mm on full frame. - Birds: 600mm full-frame equivalent and beyond. Birds are small and far away; a common saying is that you never have enough reach for them. Smaller sensors help here. A 100-400mm lens on APS-C gives the view of about 150-600mm on full frame, and on Micro Four ...

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