Sigma 30mmf/1.4 EX DC HSM is currently the only non fish-eye fixed focal lens in Sigma's arsenal that was designed from grounds up for APS-C type cameras. The lens has a reduced imaging circle and while it can in theory be mounted on a full-frame of APS-H type cameras, the lens will vignette...

A fast aperture lens always garners attention and the Sigma 30mm f/1.4 EX DC HSM Lens is no exception. Photographers wasted little time in making this lens one of their favorites.

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.

Ett bra objektiv om man vill fota mycket i dåliga ljusförhållanden och klarar sig med en brännvidd på 30 mm.

Mycket ljusstarkt (F1,4; Ger bra kvalité i alla ljusförhållanden så man slipper dra upp ISO; Kompakt och litet objektiv med gedigen konstruktion; Personligen föredrar jag att fota med min Sigma 30 mm än tex Canon Ef 50 F/1,8; inte bara för att det är ljusstarkare utan gör att jag finner att 30 mm är

Fast brännvidd; något vissa kan tycka är jobbigt; Svårt att autofokusera i svagt ljus; man måste hitta en ljuspunkt att fokusera på; Brus i höga ISO

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

Great prime! This has been on my 7D at least 90% of the time since I've purchased it. Abes has new the version with Sigma's new finish which has been working great, although I did have to set MA to -3.

Fast / accurate auto-focus; Nice Bokeh; Rugged; Strong Construction

Chromatic aberration

great bokeh from this lens, i use this lens only for low lit videos, as it is not useful for any kind of photography. stars are streaks not points. portraits are distorted, not wide enough for landscape, AF is too horrible for fast motion. do not buy this lens unless you find it under 300 dollars.

fast and quiet HSM AF; focus ring feels smooth and heavy, solid build; 30mm wider than canon 50mm; F1.4 is amazing bokeh; sharp at the center f1.4 to f5.6 ....

terrible AF accuracy; weird 62mm front; abysmal corner to corner even stopped down to f8; noticeable distortion; massive color fringing, vignetting at all apertures; EX speckle finish disappears fast with use

The Sigma 30/1.4 DC HSM is capable of yielding impressive results, as long as focusing is accurate. Center sharpness was good even wide open and vignetting was well controlled. Distortion was low and chromatic aberration, though present, was again well controlled.

Yes, I would recommend this to a friend

Great solid heavy build; Nice Bokeh; Smooth and weighted focus

Corner Sharpness

Perfect lens if it focused properly out of the box. Lens has a little front focus on my Rebel t3i. Sent to Sigma for calibration with camera body still waiting for it to return. Otherwise good quality lens.