Sigma 30mm F1.4 DC HSM A Canon and Nikon mount lens reviews: good all-round performerBy Kevin Carter - Monday July 15 2013 Lens Review
After achieving an excellent reputation for its imaging characteristics, Sigma has revised this popular high-speed APS-C format standard lens, adding it to its high-performance Art line. Read on to see how well this new iteration performs in our labs.
Sigma is reorganizing its lens range in to three product categories; Contemporary, Sports and Art, the latter of which this new model is a part of is reserved for its highest performing lenses. With its angle of view equivalent to a 45mm on a full-frame 35mm camera, the 30mm f/1.4 DC HSM A has been substantially revised with a new optical construction of 9 elements in 8 groups (over the previous 7 elements in 7 groups), closer minimum focus distance of 30cm (down from 40cm) and 9 diaphragm blades as opposed to the earlier iteration’s 8 blades. New algorithms are said to improve the AF performance of the built-in ultrasonic type motor, while compatibility with the firm’s innovative USB Dock allows focus adjustment and updating of firmware. Lastly, a high quality outer shell and finish has been adopted in accordance with others in the Art line, but despite the improvements, the price remains the same as the older model at $499.