Ok, I've done a search on Vital to see if this has been discussed before, but mainly found older posts discussing older equipment / camera models.
I am going to be purchasing a Sony A6000 mirrorless camera. I would like to purchase ONE good lens for it, that would be good for me to shoot local Motocross races with. Mainly action shots of riders going by, while I'm standing near the edge of the track.
I would like to have a very fast lens, but can't really afford something really, really fast right now. I have ran across this Sigma art lens that goes down to 2.8 and has about a 90mm equivalent focal length (on the a6000). https://www.dpreview.com/products/sigma/lenses/sigma_a_m_60_2p8 It's fast, but also inexpensive. My question would be the focal length. Will 90mm get me close enough to properly frame riders coming by? If not, which fixed focal length should I go for, assuming I do not want to use a zoom lens?
Thanks for anyone that could give me some insight.