Dmab wrote in post #18542969
I will say, for the time I had this lens the image quality, even at 400mm was simply amazing. Razor sharp, colorful and contrasty...made the RAW files enjoyable to work with. My problem was I handhold my camera all day so it got tiresome with it being so heavy.
The 100-400mm II is built like a tank
, says Roger Cicala. Knowing that gives me great pride of ownership, and great backache after using it for a few days.
The 100-400 II weighs 1640 grams whereas the Sony 100-400 GM weighs only 1395 g, 15% less. That can help on long outings.
Looking at bodies, the Canon 7D2 weighs 910 g, compared to only 453 g for the Sony a6500 (both with batteries). They are both APS-C bodies. So if the 7D2/100-400II is getting heavy, the a6500/100-400GM will save you 700 g, a pound and a half.
Sometimes I think camera manufacturers make gear big and heavy on purpose. Heavy gear feels like it is serious and high quality. Big gear looks imposing. But it is hard to carry around for long periods.