Tamron 17-70mm F/2.8 Di III-A VC RXD (B070) — Fujifilm X is listed for Fujifilm X with APS-C coverage. Its verified front filter size is Ø67 mm. Manufacturer global specification confirms this mount variant and filter thread. US availability and exact body functions are not established here.
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Verified specifications
| Field | Value |
|---|---|
| Mount | Fujifilm X |
| Image format | APS-C |
| Front filter thread | Ø67 mm |
| Model ID | tamron-b070-fujifilm-x |
| Optical construction | 16 elements in 12 groups |
| Closest focus | 0.19m (7.5in) (WIDE) / 0.39m (15.4in) (TELE) |
| Maximum magnification | 1:4.8 (WIDE) / 1:5.2 (TELE) |
| Minimum aperture | F22 |
| Aperture blades | 9 (circular diaphragm) |
The maker also lists 16 elements in 12 groups for the optical design and a closest-focus specification of 0.19m (7.5in) (WIDE) / 0.39m (15.4in) (TELE). These are lens specifications, not a guarantee of performance on every body or in every shooting mode.
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Look for the Fujifilm X designation on the camera specification, then verify the exact model code and mount variant against its support page. A physical mount match is a starting point; still AF, movie AF, crop behavior, stabilization and firmware need separate checks.
Choosing a filter
A circular screw-in filter with a matching documented thread size is only a mechanical candidate. Magnetic filters, wide frames and stacked rings need separate system and vignetting checks. When no front thread is specified, do not buy a size from the focal length or barrel diameter.
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Checked for this reference on October 30, 2026. Product firmware and support lists can change; inspect the current maker page for your exact revision.