Sigma 40mm f/1.4-1.4 Fixed Prime 40mm F1.4 DG HSM, Black (Canon Mount)

4 reviews for Sigma 40mm f/1.4-1.4 Fixed Prime 40mm F1.4 DG HSM, Black (Canon Mount)

1. 

   Rated 5 out of 5

   Helen McLaughlin – May 6, 2025

   I would describe myself as an advanced hobby photographer, and not a pro. That said, I have only a few lenses and believe that the less the better – given obvious lens’ constraints in their size, weight, and general awkwardness when attempting to carry many (as some do in their photo backpacks). In my view, this approach is often too impractical, especially when travelling.With the above in mind, I searched patiently for an excellent prime lens in the “normal” focal length range. Without demeaning other lenses or manufacturers, this Sigma 40mm Art is a top of the line product, better than many lenses made by Sigma itself, and other well known makers, in all domains: its optical quality is exceptional, much sharper than competing lenses (many online reviews and tests are available which demonstrate its sharpness, brightness, color accuracy, etc.), its auto focus is quiet, accurate, and fast, and its build quality is first rate, including the design of the lens hood.Given its outstanding build and optical qualities, my takeaway is that Sigma intends this lens to be used by the most demanding photographers. I suspect that is the reason Sigma used a somewhat unconventional focal length for this lens (of 40mm) instead of the more common 35, 50, or 55; all done in an effort to separate it from the rest.There’s nothing negative that I can write, but to note the obvious. This lens is bulkier and heavier than comparable lenses. It’s also much more expensive. However, as above mentioned, I carry few lenses so this isn’t a personal limitation to me, but for those who carry lots of gear, this may be considered a disadvantage. Ultimately, like most choices, this lens is intended more for some than for others, depending on what is important: if it’s optimal image quality (this is a top contender) or a if it’s a compromise in optics for smaller size, weight, and a much lower price (there are many 35mm lenses f1.4 available).

2. 

   Rated 5 out of 5

   Dr. Frank Cremin – June 18, 2025

   First, 40mm is an odd focal length. Too short for tight portraits, too long for wide scenes. But for full length or half length portraits or environmental portraits it works! And this lens is SHARP! From center to edge even at f1.4. Stop down to f4 and the resolution is just amazing! Zeiss Otus level amazing at 1/3 the cost. There are down sides however: it’s expensive for a “normal” lens, at $1400. It’s big and heavy. A 40 mm lens that weighs more than my 24-70 f2.8. And it has no vibration reduction function. But if image quality with autofocus is important to you, this is a lens you won’t regret buying. I know I am glad to have it.

3. 

   Rated 5 out of 5

   Nicola VonRueden – June 24, 2025

   Attached to a camera, it feels heavier than I was expecting, but probably worth the extra heft for the excellent optical quality.I actually was expecting sluggish AF, but it’s doing better than expected in that regard. I wouldn’t recommend it for action sports, but AF seems good, considering the substantial mass of the glass inside.Recommended for anybody not needing ultra-swift AF and not concerned about weight. It might be especially useful for people already packing both a 35mm and a 50mm because this 40mm can replace both in many situations. That’s what I like most.

4. 

   Rated 5 out of 5

   Mr. Jean Rogahn V – July 20, 2025

   With the 40mm sigma lens, we get what we see. Not only what we see with our eyes, but also what we see with our heart. Normally I like walking forward and backward to frame the picture with my eyes. Since the field of view of the 40mm sigma is so close to what I see that I don’t have to use the camera to frame my pictures anymore. Another thing is, knowing that I could use all the aperture from 1.4 to 16 with full confident, it is up to me to decide how much is too much? How little to be in focus is just nice. The lens replaced my voigtlander 40mm and Voigtlander 58mm, which I sold at a small fraction of their price, just to get them a new home. The first picture I took with the Sigma 40mm on my Nikon D600, was the picture of flower, it was beautiful.