I love this lens, the DOF is extremely low as one would expect. I can shoot in near total darkness as long as I have a light for focus assist. Ambient light looks true and beautiful! With that said however this lens is the worst of all I own for backlit subjects.

Superior build quality

Semi-sharp images; chromatic aberration

Eversince I bought this lens, I won't do a portrait shoot without it. The sharpness and the amazing depth of filed at F/1.2 is just sublime. I do wish the focus could be a tad faster. If your budget allows it, I highly recommend this lens.

Most amazing lens I have ever owned. It's a little heavy but I like that. This lens is a beast. My images are so sharp now. I'm very pleased with my purchase!

this picture is a fantastic lens, very nice blur in the zone field, and he's very sharp! I don't like leaving a part in focusing! I like it more than my beloved canon 135/2!

I'm a semi pro Fine Art photographer with many years of experience across traditional film and digital cameras. This is by far the best lens that I have in my bag now. Quality of the images captured is exceptional...

Amazing imaging control

Expensive

Great looking images with this lens. A little heavy, but well worth it.

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

Heavy

I really do enjoy using this lens. Its sharp, I love the extremely shallow depth of field. but there are two poor time about this lens especially for how expensive it is. 1. the autofocus is painfully slow, particularly when the focusing distance is rather large. 2.

At nearly $2000, anyone considering this lens must consider this lens to be a specialty lens. When looking at this lens, the two immediate uses for this lens for me were portrait photography and low light/indoor sports photography.

f/1.2 is fantastic if you know how to use it; So much light and bokeh

f/1.2 is horrible if you don't know how to use it; Heavy; Focus really difficult

This has been on my wish list for portraiture since the original version was released. So when I had the chance to grab the MkII version at a bargain price I could not resist. It's the perfect focal length for a portrait with the perspective being very flattering to the subject and the working...

Amazing image quality, f/1.2 aperture, f/1.2 aperture; (I know I said already but it's so good I'm saying it twice!, Beautiful isolation of subject from background, Beautiful smooth unbeatable bokeh, Solid weather sealed build, Superb lens flare control especially for a lens of this aperture, Superb...

Slow focus compared to L lenses or 50mm f/1.4 & 85mm f/1.8; 72mm Filter not standard size for L lenses (Except 135 and 180 I suppose); Cost is huge compared to 85mm f/1.8 which is a d*** fine lens also

I bought this lens as an upgrade on the 85mm f/1.8 USM lens primarily to shoot weddings. I am very pleased with the image quality, even at wider or the widest apertures. The main thing about this lens is the colour and contrast over the f/1.8, pictures come out looking better and require less...

Durable; Easily Interchangeable; Rugged; Sharp Focus; Strong Construction