So, I've been looking at the Tamrom 150-600, which looks like a nice lens. And also looking at the Sigma 150-500 (I've been impressed with Sigmas new lenses, I know this one is a tad older) along with the 100-400L (I've rented before and I know it's a great lens).
I've been looking at something to use for wildlife/bird (not going out and stalking wildlife to get shots), just casual like. I know some will say the 100-400 will be kinda short. I've also not had a chance to try the Tamron for obvious reasons since it seems to be OOS all over right now.
I know this is very much a personal opinion on everything, but what would be your #1 choice out of the three?
Tamron 150-600
Sigma 150-500
Canon 100-400
Thanks.














