On the body of the Sigma 35mm F1.4 DG DN | Art is an aperture ring that allows aperture to be controlled via the lens, or when set to Auto, using the camera. An aperture lock switch on the lens body allows the aperture ring to be locked in Auto so that it is not accidentally knocked during shooting. A big plus for filmmakers, the aperture ring can be de-clicked, allowing users to seamlessly adjust exposure. Also on the lens barrel is a focus mode switch and an AFL button, which can be customized to a desired function from within the camera menu (depending on the model). The switch is ergonomically positioned to be controlled by the thumb during use.
A petal type lens hood is included in the box, which helps reduce flare and offers the lens added protection if dropped. The hood has a lock mechanism that keeps it attached securely to the lens, and its rubberized grip makes it quick and easy to attach and remove.
On top of this impressive array of features and elegant exterior, the body of the 35mm F1.4 DG DN | Art offers an exceptional level of durability that helps it withstand long-term professional use as well as individual operating parts that give a good fit to the hand. The dust and splash resistant structure* provides sealing on buttons and along joins between constituent parts, and there is a rubber gasket around the mount. There is also a water and oil repellent coating applied to the front element ensures that photographers can rely on it in any conditions.
*Although this construction allows the lens to be used in light rain, it is not the same as being waterproof.
*1 When turned ON at the position A, the aperture ring is locked at A. When turned ON at a position other than A, it is locked within the range between the maximum to minimum apertures and will not engage at the position A.
*2 Function available on supported cameras only. Available corrections may vary depending on the camera model.
*3 Although this construction allows the lens to be used in light rain, it is not the same as being waterproof.