Budget ultra-wide zoom for APS-C with 77mm filter thread that accepts standard filters.
The Tamron SP AF 10-24mm f/3.5-4.5 Di II LD Aspherical (model B001) was released as a wide-angle zoom for APS-C bodies, providing a 15-36mm full-frame equivalent range with USD (Ultrasonic Silent Drive) AF. The Di II designation confirms APS-C-only image circle. LD (Low Dispersion) elements control chromatic aberration at wide angles. Available in Canon EF-S and Nikon F mounts. This version has no VC (Vibration Compensation) — the B023 successor added VC.
The optical design uses 12 elements in 9 groups, including aspherical, hybrid aspherical, LD, and HID elements. Seven aperture blades. The 77mm filter thread is large for an APS-C ultra-wide. At 406g the lens is moderate for an APS-C ultra-wide zoom. Minimum focus distance of 0.24m throughout the zoom range. USD motor provides fast, quiet AF. No VC stabilisation — relies on shutter speed technique or body IBIS. Variable aperture from f/3.5 at 10mm to f/4.5 at 24mm. APS-C-only image circle.
The 15-36mm equivalent range covers the full ultra-wide spectrum on APS-C for architectural interiors, environmental portraiture, and landscape photography. The 0.24m MFD enables close ultra-wide compositions throughout the zoom range — useful for foreground-to-background compositions with close subjects at 10mm. The USD motor provides professional-speed AF at a price point below the Canon EF-S 10-18mm IS STM and similar consumer alternatives.
On the used market the Tamron B001 is affordable for an APS-C ultra-wide without VC. Condition checks: USD AF response, 77mm front element for marks, and confirm mount version. No VC — a limitation for handheld video work at wide angles. The Tamron SP AF 10-24mm Di II VC HLD B023 provides VC at a modest premium. Compatible with APS-C bodies in the specified mount; APS-C image circle only.