>>4279297its also a totally useless amount of reach as we can see by the fact that after years of mft already having 1200mm REEECH pro sports/wildlife fags did not pick it up for max reach, instead, a minority of wildlife hobbyists did to use absolutely tiny, super cheap zoom that are not so slow or so long. pros continued using moderately sized 400s and 1.4x tcs, occasionally 600s. perhaps because that much zoom isn't all that useful if you have a modicum of skill, just like the FPS wars are not attracting much attention because it's a skill issue.
this continues to be the only kind of mft user i see outside of the internet. bird photographer, very small but decently reachy zoom. you can see why. this is where mft shines, not this gearfag contest where its desperately trying to be the same as ff or better, when that is not really possible unless all your lenses are four times faster and way sharper, which will negate every advantage you ever had and make you just a retarded wanker.
fyi ,the ff 600s are about 4" longer than ff 400s - 400s are around 7" to 8" long compacted and 600s start out around a foot long. this website over-scales all its lenses so everything you see here is smaller in real life.