Panasonic Leica 100-400mm and Panasonic Lumix 100-300mm mk II comparaison for wildlife photography

In episode 14:
In the previous episode (episode one - three) I discussed the merits of the Panasonic G9/ Panasonic Leica 100-400mm combo for wildlife photography I had several viewers inquiring, with reason,
about the overall real world differences between the Panasonic Leica 100-400mm and the Panasonic Lumix 100-300mm mk II in wildlife photography scenarios.
Most people would assume that the 100-400mm being a Leica lens would yield better overall image quality than the 100-300mm mk II which is a Lumix and as you’ll see shortly it’s true in most cases.
But the 100-400mm lens cost 2,7 x more than the 100-300mm lens, so the real question is how much better of an image quality are you getting? You’re certainly not getting 2,7x better images quality so how do you explain the cost difference?
In this video, I’ll try to give you a good appreciation of what set these two lenses apart.