Sigma's budget 70-300mm telephoto — an affordable APO-corrected option for Nikon DSLRs.
The Sigma 70-300mm f/4-5.6 APO DG Macro is a budget telephoto zoom for full-frame Nikon DSLRs. The APO designation indicates apochromatic elements for reduced chromatic aberration compared to Sigma's non-APO version. The macro mode at the telephoto end allows closer focusing. It targets budget-conscious photographers wanting affordable telephoto reach.
Optical performance is adequate for the price. The APO elements noticeably improve chromatic aberration control over the non-APO version. Centre sharpness is acceptable throughout the range, softening at 300mm. The macro mode provides approximately 1:2 magnification. No image stabilisation — a significant limitation at longer focal lengths requiring higher shutter speeds.
Nikon F mount. Filter thread is 58mm. Weight is approximately 545 grams. Build quality is basic plastic with a functional design. Several versions exist — the DG designation indicates digital optimization with coatings designed to reduce sensor reflections. No weather sealing. The aperture ring is removed, with aperture controlled from the camera body.
Very cheap on the used market. Check for smooth zoom and AF operation. The APO version is worth the small premium over the non-APO for noticeably cleaner images. Budget telephoto at its most basic — adequate for casual use but thoroughly outclassed by modern VR-equipped alternatives like the Nikon AF-P 70-300mm VR.