takes its place as the latest lens in Sigma’s venerable high-end lens line and is a welcome addition thanks to excellent performance and a low cost of entry.
Sigma’s new 50mm f/1.4 DG DN Art lens ups the ante with a lens that’s now closer to the performance of anything else on the market than previous Art lenses thanks to the new High-response Linear Actuator system that the company says improves the speed and tracking while operating nearly silently.Traditionally Sigma use rotational motors of some type, a design that was created and optimized for DSLR lens operation.
The lack of moving parts also results in smaller lens designs because this type of motor is much smaller than a rotational one. It also reduces or eliminates the operational noise. The solid-feeling lens barrel has an aperture ring, an aperture click/declick switch, and an aperture lock switch. There is also a focus mode switch and, on the L-mount system, the focus ring can be switched between a linear and non-linear focus adjustment.
Only a few people buy a 50mm lens for wildlife photography. Still, the fact that the lens can lock onto such a tiny reference point at a distance and maintain it shows how the new focusing system in the Sigma 50mm f/1.4 DG DN works in tandem with Sony’s subject-detection AF system. This makes logical sense, though an alternative possibility is that Sony limits the speed of third-party glass to 15fps to reduce competition.
I thought mirrorless cameras were supposed to lead to smaller lenses? Sigma lenses have always been laughably large but this is just bananas for a 50mm.
Too big for 50mm.
It’s huge af.
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