Generic Tamron 18-200mm listing — the XR Di II superzoom across unspecified mounts.
The Tamron 18-200mm f/3.5-6.3 XR Di II is a generic listing of Tamron's popular APS-C superzoom, also described under IDs 3439 and 3566. Covering a 27-300mm equivalent range, it is one of the most widely sold one-lens travel solutions in DSLR history. The XR and Di II designations indicate compact design and APS-C-only coverage.
Optical performance is typical of superzooms — acceptable at moderate focal lengths with softening at extremes. The 11x zoom ratio provides enormous convenience at the cost of optical perfection. Centre sharpness is decent. No stabilisation in the base version — VC versions add valuable stabilisation. Multiple generations exist with incremental improvements.
Available in Canon EF-S, Nikon F, Sony A, and Pentax K mounts — this listing does not specify the mount. Filter thread is 62mm. Weight is approximately 398 grams — impressively light. Build quality is functional plastic. Check which mount and version this specific listing represents before purchase.
Extremely common and affordable on the used market. Check for zoom creep and smooth AF. Not for critical work but unmatched for travel convenience. Verify the specific mount version. The VC-equipped versions are significantly better. One of photography's greatest value propositions for casual travel use.