Is the tamron 25 200mm f 2 8 5 6 di iii vxd g2 good on aps c?

Yes, it works on APS-C, as long as you use a Sony E-mount body. The lens is designed for full frame, but on an APS-C camera such as the Sony a6400 or Sony a6700 it frames like a 38-300mm on full frame, so you get a lot of reach from one lens.

The trade-off is depth of field. At f/2.8-5.6 it behaves like f/4.2-8.4 on APS-C, so backgrounds won't blur as much as the number suggests. The lens isn't stabilised either, so keep your shutter speed up when you zoom in. For more on how the crop changes depth of field, see the focal length converter.

It's a good everyday telephoto. If you need wide views, look at the wide zooms in the Landscape guide. For close portraits, see Portraits.

Written by Claude from this site's pages.