Conclusion: I like the lens for many reasons: its price, its focal length, wide aperture and graduated background blur – only I wouldn’t use it at its smallest apertures. A fantastic portraiture lens if you stick to shooting with apertures between f2.8 to f8.
Summary: More and more lenses are on the market offer a high resolution at an attractive price. However, far less affordable lenses are available that also offer a high luminosity and a nice bokeh. This differentiates the Sigma 85 1.4. The Sigma 85 mm 1.4 EX DG HSM is designed for a full frame camera. On a camera with an APS-C sensor, this lens perhaps comes out best. The resolution is high and chromatic aberration, vignetting, and distortion are very low.
Pros: High optical quality: very low distortion, chromatic aberration, and vignetting. High center resolution and sharp from center to corner from aperture 4, Built very well, Beautifully, woolly display of blurred parts, Attractive price to quality ratio