The Tamron 17-70mm f/2.8 covers most everyday shots in one stabilized, constant-aperture zoom. On APS-C Sony bodies without IBIS — the a6400 and ZV-E10 II — its built-in VC stabilization is the feature that sets it apart.
Key specs
What’s a good price?
This item mostly sells near list price, with dips during manufacturer rebates (often Black Friday through the holidays, and spring). A good price is anything at or near its 90-day low on a price tracker such as Keepa or camelcamelcamel. We’ll add it to our price drops list when a meaningful discount appears.
What’s good — and what isn’t
Strengths
- Long ≈26-105mm range at constant f/2.8
- Optical stabilization helps handheld video and low light
- Moisture-resistant build
- Shares a 67mm filter with many Tamron lenses
Trade-offs
- Roughly twice the weight of the Sigma 18-50mm
- Large on small bodies like the ZV-E10
- Some distortion at 17mm (corrected in-camera)
Who it’s for
APS-C Sony or Fujifilm shooters who want one lens for travel and handheld video, especially on bodies without IBIS.
Alternatives
| Alternative | Why consider it |
|---|---|
| Sigma 18-50mm f/2.8 DC DN | Half the weight, no stabilization |
| Sony E 16-55mm f/2.8 G | Sharper premium alternative, no OSS |
| Sony E 18-135mm f/3.5-5.6 OSS | Cheaper travel zoom with OSS, slower aperture |
FAQ
Is the Tamron 17-70mm good for video?
Yes — stabilization plus quiet RXD autofocus make it one of the best APS-C video zooms, especially on non-IBIS bodies.
Tamron 17-70mm vs Sigma 18-50mm?
Choose the Tamron for range and stabilization; choose the Sigma for size and weight.
Related: Sony E-mount guide · Black Friday lens deals · All lenses