Sigma Art DG HSM Lens

Yes, it is specifically engineered to correct sagittal coma flares. This means point light sources like stars will remain sharp and circular at the edges of your frame, rather than stretching into distorted shapes.

The minimum focusing distance is 40cm. While it is not a dedicated macro lens, this distance allows for tight framing and expressive close-up shots of portraits or small details.

No, this lens is not weather-sealed. While it is built with durable TSC (Thermally Stable Composite) material to maintain performance across temperature changes, you should take extra care when shooting in rain, dust, or harsh environments.

At 815g, this lens is significantly heavier than a standard 50mm prime. This weight is a trade-off for the complex optical construction—13 elements in 8 groups—required to achieve its high resolution and wide F1.4 aperture.

The lens uses an HSM (Hyper Sonic Motor) which provides smooth, quiet, and responsive autofocus. It is well-suited for most photography needs, though keep in mind that it does not feature internal focusing, so the lens barrel will extend during operation.