Sigma 300-600mm F4 DG OS | Sports

Reviewers found it sharp wide open across the whole range, with 600mm results that hold up well against dedicated 600mm F4 primes and only a small gain from stopping down. Autofocus is fast and accurate for birds in flight and field sports on recent Sony bodies, and the stabiliser is very effective for a lens of this length.

The reservations are practical: nearly 4kg, a price that puts it with first-party exotic telephotos, and no teleconverter support on the Sony E version. Testers also noted that the minimum focus distance of 2.8–4.5m limits close work with small subjects.

Owners who shoot field sports and wildlife say the zoom range replaces both a 300mm F2.8 and a 600mm F4 in the bag, and that framing a game or an animal without moving is the main benefit. Build quality, the internal zoom and the Arca-Swiss compatible foot get frequent praise.

The common complaints are weight for handheld use, the size of the case and hood, and that Sony users cannot add Sigma's 1.4x or 2x converters. Some also point out that the US price rose after launch.