![]() Again I have used red for the 24mm results and green for the 35mm. With the primes the 35mm is sharper at wide open apertures but the 24mm is sharper stopped down. Plotting the data a little differently, using the difference between the zoom and the prime results rather than absolute value, gives a slightly clearer picture of the difference in performance between the lenses. What we can see from this is that across the entire aperture range the zoom is sharper at the 24mm end than the 35mm end. Aperture is on the horizontal axis with the Focal quality measure score on the vertical. The zoom lens is represented by the solid line and the primes by the dashed line. I’ve overlaid the full results in the chart below, the results at 24mm are in red and 35mm in green. Each test was performed twice to ensure repeatability of results. The zoom lens was tested at both ends of its reach to allow comparisons with the prime 24mm and 35m lenses. Once each lens was adjusted for maximum sharpness I then ran Focal’s aperture sharpness test to enable a comparison to be made on all the lenses across their aperture range. Being as I also have the Sigma 24mm and 35mm primes the first thing I did was put it to the test and find out. For this test I used a Canon 5D mkiii and ran the same camera body with each lens attached through a micro adjustment test using Reikan’s Focal software. I hardly ever shoot with the aperture of my primes wider than f2.0 so could this be the answer to my 24mm / 35mm lens swapping anxiety? I’ve been curious about the lens for a long time and when I recently saw a barely used one come up at a reasonable price I thought I’d give it a go and put it through its paces.Ī lot of people online have been saying that the 24-35mm f2.0 zoom is as sharp as a prime lens. Yes it has an f2.0 aperture but it has such a short zoom range, is it really necessary? However for many wedding and event photographers it sounded ideal. A lot of people asked questions as to whether there was really any need for this lens. This was a world first – a full frame zoom lens with a constant f2.0 aperture, full frame zooms are usually limited to a maximum aperture of f2.8. Hence why I prefer to shoot mainly with the 35mm and only switch out to the 24mm when it’s really needed.īack in 2015 Sigma created a bit of a stir when they launched the 24-35mm F2.0 DG HSM Art zoom lens. Some people could argue why don’t I leave the 24mm on all the time and avoid swapping lenses? The main problem I have with doing that is that the 24mm has more noticeable distortion and the focal length means that sometimes you have to get in a bit too close to frame a shot. Plus I’m a bit clumsy at the best of times, so I have a perpetual fear of dropping a lens and de-centering it. I sometimes feel I could be missing moments swapping lenses and it’s a bit of a pain carrying other gear about. ![]() The one problem I have with this is that I like to work quick at weddings. It’s then that I reach for the Sigma 24mm f/1.4 DG HSM Art. I normally shoot with a 35mm / 85mm dual camera setup and the only time the 35mm tends to come off is for dance floor action or when I need something a little wider due to space limitations. At weddings it’s rarely been off my camera as it focuses fast and is as sharp as a tack. I’ve been a massive fan of the Sigma 35mm f/1.4 DG HSM Art prime lens since I first got hold of one over two years ago. ![]() This is primarily written for other wedding photographers who may be interested in whether this zoom lens is the right choice for them instead of a pair of fixed focal length primes. The non-photographers amongst you might want to skip this blog posting as this is a fairly detailed Sigma 24-35mm F2.0 DG HSM Art lens review, comparing it to Sigma’s 24mm and 35mm f1.4 prime Art lenses.
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