2019-03-27 ·  There is no question that the Sigma 40mm F1.4 DG HSM Art delivers exceptional image quality. It's a better lens than the company's lauded 35mm F1.4 Art, especially when partnered with a demanding,... 

To sum up, the Sigma 40mm f/1.4 DG HSM Art may be large and heavy, and potentially as impractical as it will be affordable for most, but its optical performance is hard to fault. 

For me the 40mm/f1.4 is a perfect documentary or reportage lens. The close focusing capabilities and wide aperture allow many options for environmental portraits. Also it is a surprisingly excellent architecture lens. I'm not going to sell my 50mm/1.4 because it's better than most lenses and the smaller size means a lot in many situations. 

Summary The Sigma 40mm f1.4 Art is a short standard prime lens designed for full-frame sensors and available in Nikon F, Canon EF and Sigma mounts with native Sony E and Leica L versions arriving later in 2019. 

2019-07-20 ·  The Sigma 40mm F1.4 Art is stunning. It takes Sigma well beyond its role as a budget, third-party manufacturer, and into the realm of premium lens maker. At $1,399, it’s not affordable, but it... 

2017-02-08 ·  The Sigma 85mm F1.4 Art hasn't been on the market long, but it has already begun to make some serious waves. Lenstip and DxO have rated it the sharpest 85mm lens ever created, beating out even the legendary 85mm F1.4 Zeiss Otus, which isn't something that we take lightly. 

Sigma 50mm f/1.4 DG HSM Art Lens Review Gary Wolstenholme reviews this new premium 50mm lens from Sigma, with a bright f/1.4 aperture. 2 May 2014 1:20PM by Gary Wolstenholme | Sigma 50mm f/1.4 DG ... 

2014-05-08 ·  The Sigma 50mm F1.4 DG HSM is a fast standard prime lens for full-frame DSLR cameras. The 50mm f/1.4 features 13 optical elements in 8 groups and a HSM focusing system which provides quiet, smooth and fast autofocus with full-time manual focus override. Retailing for £859 / $949, read our expert Sigma 50mm F1.4 DG HSM review to find out if it's the ultimate fast fifty lens... 

2015-03-09 ·  Sigma 24mm f/1.4 DG HSM | A review – Introduction. Sigma is one of the longest-established third-party camera lens makers, having been in business for more than 50 years. But while even recently it was best known for budget alternatives to the camera makers’ own optics, over the past few years it’s been steadily transforming itself into a ... 