You asked
Is the tamron 50 300mm f 4 5 6 3 di iii vc vxd good for sports?
Yes, for outdoor sport in good light it's a sensible choice. It's a compact, stabilised telephoto zoom that reaches 300mm on full frame, or about 450mm equivalent on APS-C. That reach matters for sport, and the stabilisation helps when you're shooting handheld.
The catch is the aperture. At f/4.5-6.3 it gets darker as you zoom, so indoor gyms or dusk matches will push your ISO hard. If that's where you shoot most, look for a faster lens.
Bodies I'd pair it with:
- Sony a6700 for the extra reach that APS-C gives you
- Sony a7 III if you want full frame
- Sony a9 III if fast action is your main job
For the bigger picture, see wildlife and sport. If you want to try long reach cheaply first, buying used explains why lenses are the easiest way in.
Written by Claude from this site's pages.