Panasonic 100-300 vs. Olympus 75-300 II lens test
I have had the Panasonic 100-300mm lens for some time. Last year I tested it in comparison with the Olympus 75-300 lens. The Panasonic won hands down at every focal length.
I was curious whether the new Olympus 75-300 II lens would be any better. Son of gun, it is. I tested them with the OM-D on a heavy duty Gitzo carbon fiber tripod and a RRS BH-55 bullhead. Hard to have a more stable platform. Tested the lenses at 100, 200, 250, and 300mm. Lenses produced the same results except at 300mm, where the Olympus seems to be better.
Olympus 75-300mm lens
Panasonic Lumix 100-300mm lens
So the good news is that Olympus has produced a better lens. The bad news is that I am compelled to buy it. Sigh.
Read responses in dpreview.com