The Sigma 30mm F1.4 DC HSM "Art" is a fast prime lens designed exclusively for APS-C DSLRs; it's of particular interest to us because its "normal" field of view corresponds roughly to that of a 50mm lens on a film camera.

Fast F1.4 maximum aperture; Convenient focal length on APS-C; Beautiful bokeh; Excellent center sharpness; Compact and easy to hold; Minimal vignetting at F2 and above; Resistant to flare and ghosting; 4-year warranty (USA; Very affordable

More distortion that we'd like to see in a premium prime; Purple fringing near edges/corners; Low contrast wide-open; Somewhat heavy given its size; Average corner sharpness; Not weather-sealed; Sluggish autofocus

More like an iPhone 13S. The generational upgrades for the iPhone 14 are limited to a few subtle changes. At the same time, however, the base price climbs to 800 USD, while the only true innovation happens inside the iPhone 14 Pro series.

excellent OLED display, dust- and waterproof, fast Wi-Fi, wide range of supported frequencies, great camera, very fast performance, good battery life

display limited to 60 Hz, charging rate limited to 20 watts, no macro lens, wide notch

This is a great lens, lets get that out there. Someone mentioned that it is a photographer's lens, and I agree wholeheartedly. This lens is PERFECT for indoor shooting, people shots, and as a general walk around lens.

Sharpness where it counts, light weight (this is relative), focusing accuracy on my copy, and great bokeh; If you get a good copy you will love it

None worth complaining about; it vignettes (correctable and typical for this type of lens); has some CAs (shoot RAW if you care about it); and people complain about corner sharpness; but if you are trying to get corner sharpness at f/1.4 your probably just shooting brick walls and test charts

A current member of Sigma's Art line of lenses, the 30mm f/1.4 DC HSM lens updates a popular model from 2005 with a new optical configuration, a new hypersonic motor (HSM) autofocusing drive and rear focusing system. Full-time manual focus override is supported.

Despite the naming similarity, there is a world of difference between Sigma's 35mm f/1.4 and its 30mm f/1.4 (reviewed here). Whereas the former is a full-frame lens, the latter is APS-C only; whereas the former has a petal-shape lens hood, the latter's is cylindrical; whereas the former offers...

F/1.4 maximum aperture; Excellent MTF results; Full-time MF option; Near-silent AF; Metal mounting flange

Significant barrel distortion; Some colour fringing; No image stabilisation

Sigma's 30mm f/1.4 EX DC HSM is a useful prime lens for the D-SLR owner with a cropped format APS-C type sensor. Essentially it takes on the role of prime standard lens, effectively offering 45mm (1.5x), 48mm (1.6x) or 60mm (2x) - depending on which camera you use it with.

There is really no beating a prime lens for low light photography. Even the fastest zoom lenses are never faster than F2.8 (aside from the two very impressive and very expensive Pro level zooms from Olympus that are F2.0) and such, the best bet for dim rooms and night shots is a real quick prime...

First and foremost, the headline feature of this lens is the exceptionally fast 1.4 aperture; Wide open you will be able to shoot with shutter speeds 4 times faster than even the quick zoom lenses with their 2.8 apertures, The image quality is very good all things considered.

As expected, the lens is a bit soft wide open, the problem is really only apparent however towards the edges; It is however well within acceptable tolerances, The focus on my example back focused by a few millimeters at a distance of about a foot and a half.

This is one of my favorite lenses!! I love how fast the lens is and how close you can get to things. The images are amazing!!

I wasn't even looking for a new lens when I stumbled on a review of this one while enjoying my Canon

Great build quality; perfect focus; fast and quiet

There isn't a 20mm 1.4 at the same price level

Some may use it for landscape shots due to the slightly wide angle aspect to it, although having said that I think it is aimed at indoor shooting where there is an inadequate amount of lighting due to the very bright aperture. It's one of Sigma's DC range of lenses.

indoor shooting where there is an inadequate amount of lighting due to the very bright aperture

funky with depth of field