Help needed for a better zoom lens (1 Viewer)

Adorama has it for $700 used at E- rating. Or $899 new from Adorama or B&H.

https://www.adorama.com/us 1181856.html?CategoryID=246488.html

Or you could ebay.

I do not now the vendor you linked to.

Marc

I use the Tamron 150-600 c and it's a great lens. I'd trade it for a G2 if I could afford to but I do fine with the contemporary. One thing to consider. I bought it used. It does collect internal dust, not sure how it compares to the Sigma in this respect? As far as I can tell it hasn't affected my IQ but it bothers me so I called Tamron about a cleaning. They quoted me $250. which would have been covered for free if I was the original owner. That's just about what I saved buying used. If I had it to do over I'd buy new and have the warranty.