Fast prime macro lens for full-frame cameras.
The Sigma 70mm f/2.8 EX DG Macro is a full-frame (DG) 1:1 macro prime in Sigma's EX professional range for Pentax K mount. The 70mm focal length provides a convenient working distance for macro photography at 1:1 magnification — longer than a 50mm macro, giving more subject clearance for lighting and reducing subject disturbance.
70mm focal length, f/2.8 maximum aperture, 1:1 macro capability, DG (full-frame), EX professional construction, Pentax K bayonet mount.
The Sigma 70mm f/2.8 EX DG Macro is a well-regarded 1:1 macro lens that doubles as an excellent portrait prime. At 1:1 on full-frame the working distance is approximately 26cm. Sharpness is outstanding across the field from f/2.8. Compatible with all Pentax K-mount cameras.
Test 1:1 macro focus accuracy. Inspect for fungus, haze, and coating condition. Confirm K-mount engagement. Check AF function on a compatible Pentax body. Test aperture blades.