You asked
Best telephoto lens for the nikon d3400?
For the D3400, the choice is mostly about reach against size and budget. Its APS-C sensor crops in, so a 300mm lens frames like 450mm on full frame. The body has no stabilisation, so the VR or OS lenses below are worth the extra for slow shutter speeds.
- Nikon AF-S DX 55-300mm f/4.5-5.6G ED VR: the sensible everyday pick, made for DX bodies, covering 82-450mm equivalent.
- Nikon AF-S 200-500mm f/5.6E ED VR: more reach for birds and distant wildlife, at 300-750mm equivalent.
- Sigma 150-600mm f/5-6.3 DG OS HSM Sports: the most reach in this list at 225-900mm equivalent, but it is big and heavy.
If you mostly shoot wildlife or sport, have a look at wildlife and sport before you buy.
Written by Claude from this site's pages.