Sigma 56mm F1.4 Review
Sigma 56mm F1.4 is part of contemporary series of lenses by Sigma; it is designed to work with APS-C format E-mounted mirrorless cameras by Sony. One of the features of this lens is F/1.4 aperture, which is capable of working under different lighting conditions. The lens offers you better control, especially when you have selective focus.
The optical design of the lens uses two aspherical elements, first is SLD element that helps photographers to reduce chromatic and spherical aberrations for better clarity and sharpness. There is a super multi-layer coating to achieve better color accuracy and contrast when working in various light settings. Complementing the optics, there is an AF motor that is suitable for both, video and photo applications because of its precise, quick, and silent performance.
Sigma 56mm F1.4 Features
Our Sigma 56mm F1.4 feature discussion starts with the round bayonet lens hood. It is attached smoothly, precisely, and strong; there is no chance of becoming detached. In the bayonet, there is a conventional 55mm filter thread. There is a high standard finish on the lens that is dustproof and splash-proof.
Another feature of the lens is a large focus ring. The focusing of the lens is down to 50cm, or you can say 1.64 feet, with a final magnification of 1:7:4, it is good but not close to what macro lens does. Manual focusing of the lens is electronic, and the operating is smooth. You can control focus mode with the camera; there is also DMF (Direct manual focus) on Sony cameras that gives you manual tweaking when you lock AF. Most of the features depend on the camera. It has internal focusing, and the size of the lens doesn't change when we focus. The AF feature is highly accurate, and it is faster than some of the other lenses.
The 35mm format equivalent helps us get an idea about the field of view, compare to the full frame. About the equivalent on MFT, it is 112mm f/1.4 and when on the Sony E mount, it is 84mm f/1.4. What this means is that, when comparing with the 35mm format lens, sigma is much compact. Equivalence doesn't expand based on the depth of field, and smaller formats offer higher DOF at any aperture. It can be an advantage and a disadvantage when you want to isolate subjects from a defocused background. MFT version lens has 256g weight, while Sony E mount version has 280g weight.
It has 10 elements in 6 groups when we look at the optical construction, one is SLD (Super Low Dispersion), and other is aspherical. The diaphragm has 9 rounded blades.
It doesn't have optical stabilization; you have to rely on the camera body. Sony A5100 doesn't have a steady shot, which is a disadvantage for a short telephoto.
When you are using Sigma 56mm F1.4, there is not much contribution from the lens, except for its optical capabilities. You can control everything from the camera, but the overall features are quite good. If you use it on AF, then you won't face many problems.