When I bought this lens - I was really hesitant. For the price and off brand - I feared aberration, noise and slow focus. To my surprise this lens not only focus quickly, its quiet and takes amazing photos. It's the best lens I own (disclosure: I'm an amateur photographer )

I have had a lot of lenses, and with time, I just keep 3 for my D800: One of those is this Sigma 24/1,4. The two others are the new Nikon 300/4 and the traditional Nikon 105 macro, but with this 24 art, sigma is to my point of view at the same level as Nikon, and much less expensive.

Technically there are still a lot of aspects which needs to be covered and it ll take time. But in the interim, the lens works like a dream, absolutely silent while focussing and shots are outrageously sharp.

I ordered this lens with the Sigma USB dock due to worrying about the focus being out of calibration after reading forums talking about this. As it turns out there was no need to worry at all. Focus is spot on on a Nikon D750 SLR body.

Consistent Output; Durable; Quick Focus; Sharp Focus; Strong Construction

Not weather sealed

Fantastic lens, really sharp at all apertures!

Solid; robust build quality; stunning results and hands on the camera beautifully!

I bought this lens 2 months ago and have 3 other wide angle lenses that rate in the top of all reviews . The sigma 24mm f1.4 art is the best lens ive ever owned its so so sharp I have not even used the docking station that I own because its sharper than anything simply amazing hands down it deserves...

This is more of a preview as I have yet to get my hands on this lens to test it out. I am however very excited about seeing how this lens performs given the quality and sharpness of the previous two prime ART series lenses from Sigma. ....watch this space!

A f/1.4 lens is meant to be used wide open at least sometimes (otherwise an f/2.8 lens is sure to be cheaper, lighter, and just as good). This one does meet expectations. Images shot wide open are pretty sharp already, and above all very "clean".

Sharpness; low aberrations; close focus; contrast; good working against the light

MF not that nice; AF precise but slow; size and weight of course

Very Good Lens. Thank you!

Sigma has long been a leader in the third-party lens market, producing an astounding array of glass that's compatible with major DSLR systems from Nikon and Canon (plus their own camera line) as well mirrorless and other camera manufacturers.