I have to admit that I do not pay attention to Panasonic lenses. There seems to be a few options that are longer than 35 - 100 and shorter than the 100 - 300, which lens, with IS, is sharpest? It will be used on a GH3/4 primarily for wildlife stills. Thanks.
Probably 45-175 ( not taking price into account) but not a huge amount in it. They all soften up a bit at the tele end but this one does it least. The fixed length helps the handling too.
I just recently picked up the Pana 45-150mm and I have been pleasantly surprised with how good it is....barely 15mm larger than the PL25mm and really light, yet it feels really nice and operates smoothly, a significantly nicer lens to use than its Oly 40-150mm counterpart which by comparison felt very cheap indeed. I took the P45-150mm out the other day and I'm extremely happy with the results....especially considering it was only about $200. https://www.mu-43.com/showthread.php?t=63769
