You asked
Is the tamron 17 50mm f 4 di iii vxd good for travel?
It's a sensible pick for travel, with one big caveat. At 17-50mm on full frame, it covers wide scenes, streets, and food and people from a short distance, all in a light body. It's a constant f/4, so it's fine in good light.
The caveat is reach and stabilisation. It stops at 50mm, which is short for a travel zoom, and it isn't stabilised, so dim churches and interiors will push you toward a higher ISO. The travel guide asks for roughly 24-105mm and some form of stabilisation, so this lens meets only half of that list.
If you shoot a camera with in-body stabilisation, it becomes a much better fit. Pair it with a small fast prime for evenings, as the what to pack section suggests.
Written by Claude from this site's pages.