Compare comparison Lens Comparisons sigma Sony test vs

Lens Comparison & Review – Light And Matter

Once I heard that Sony can be releasing a new 24mm f/1.four G Master lens this winter, I instantly questioned how it will examine to the Sigma 24mm f/1.four ART lens that has been thought-about probably the greatest available on the market by reviewers over the previous couple of years, and has lately been made out there in Sony E-mount. The Sony 24mm f/1.4 GM lens prices $1398, whereas the Sigma solely costs $850, making it a gorgeous choice, on the floor.

Sadly, my efforts to offer these lenses a radical comparability have been thwarted by a spell of snowy climate here in the Seattle space. The mountain passes have been closed, the faculties and lots of businesses have been closed, and most of the steep, icy roads that weren’t formally closed have been effectively closed to my 2wd automotive. Consequently, this isn’t the assessment I’d have appreciated to supply, and I’ll comply with it up sooner or later with a Part Two.

So, think about this video a “First Impressions” slightly than a full evaluate, however the basics are here.

Angle of View

As you begin watching the video chances are you’ll discover that the small print on the Sigma aspect of the resolution comparability are somewhat larger than those on the Sony aspect, and that the sides seem to be slightly cropped.

Matthew Gore | Light And Matter Angle of view comparison of a shot from the Sony lens and the Sigma. Discover that when the Sigma lens was hooked up, the load brought about the tripod head to sag, so the change is bigger at the prime of the image than the edges.

That is just because the Sigma has a slightly narrower angle-of-view than the Sony lens, although I didn’t take the time to measure which one is more accurately a 24mm (if both of them are). Nevertheless, I did examine the space between some set factors in two pictures taken from the exact same location (the truth is, I did this on two sets of photographs, just to make certain).

In every case, I found that the distinction within the distance between the 2 points was +four.3%. Which means if we assume that the Sony is a 24mm lens (it’s unlikely to be wider), then the Sigma is nearly 25.5mm.

It’s a reasonably insignificant difference; undoubtedly inside the regular vary of variation (about 5%) that’s typical for manufacturers to range from the said focal length of the lens, however it’s visible in the comparison, so I assumed I’d point out it.


Usually when doing a comparability like this, I shoot someplace between six and ten totally different scenes for photographs check resolution, each of which accommodates a number of photographs at every aperture, and I choose those for the video which are most consultant of the lens.

Matthew Gore | Light And Matter That is the scene shot for the decision checks under, that are 100% crops if seen full display on a 1080p or larger show.

This time, I shot three very comparable sets on the similar location, expecting to shoot the remaining later once I might get to some further places. Of these units, all have been problematic. In a single set, all four photographs from the Sigma at f/4 (taken several frames apart) have been a bit blurry on shut inspection. Within the different two units, the f/4 photographs have been also somewhat blurry (or quite blurry), and each had their own further issues, too, so I used the most effective of the three, which solely had issues at f/4.

I can’t clarify the blur problems at f/four. As I mentioned, I all the time re-focus between each shot, and the probabilities towards having encountered vibrations every time at f/four are too excessive to simply accept as an evidence, particularly considering the shutter velocity was round 1/1000th of a second, so vibrations shouldn’t have been an element anyway.

It’s potential that it’s a spotlight drawback with this specific lens at f/4, maybe related to the electronics or firmware. I originally speculated that someone had performed with the main target settings utilizing the Sigma dock, however I now keep in mind that there isn’t a dock for E-mount lenses (solely Sony A). I also questioned about “focus-shift” at f/4, but this can be a mirrorless digital camera, so the digital camera focuses with the lens set to f/4, so there ought to be no focus-shift. I’m contacting Sigma for additional info.

To summarize: each lenses are very sharp in the middle, with the modest difference disappearing round f/2.8.

Away from the center, they’re both only a hair softer, however still quite good. The Sigma lags a bit further behind vast open, however nonetheless catches up round f/2.8.

In the corners of the image, the Sony is remarkably sharp vast open, whereas the Sigma needs to be stopped right down to f/2.eight to start out wanting good. At f/2.8, the Sigma seems similar to the Sony, and by f/four or 5.6, they’re indistinguishable for all practical purposes.

Handling & Body Differences

The Sony lens is significantly smaller and dramatically lighter than the Sigma. In Sony E-mount, the Sigma lens is about one inch longer than in Canon EF mount, making it a bit front-heavy, especially considering that it weighs 27.5 ounces: about 75% more than the Sony GM lens.

LensLengthMax DiameterFilter ThreadsWeightSony 24mm f/1.four GMthree.64″2.97″ / 75.4mm67mm15.7 oz. / 445gSigma 24mm f/1.4 Art4.53″ three.35″ / 85mm77mm27.5 oz. / 780g

Beyond the dimensions difference, the most obvious distinction between the two lenses is the presence of a guide aperture ring on the Sony 24mm f/1.4 GM lens, which is complimented with a de-click change for video shooters.

This additional function for video shooters is, sadly, a critical annoyance for photographers as a result of Sony failed to incorporate a “lock” button on the aperture ring, a function that has been commonplace on aperture rings for many years.

Consequently, for those who’re carrying your digital camera round on a strap, it’s very straightforward to bump the ring from the “A” place to the subsequent click over, which is f/16. This is notably widespread when the digital camera is on a cross-body strap and hanging on the aspect of your body. After the first time it happened to me I hoped that it was a fluke, however after it had happened several occasions over the course of some days, I knew it was a critical concern. I ended up putting a small piece of gaffer tape on the ring on the underside aspect of the lens, which held it in place and solved the problem, but we shouldn’t have to use tape on a $1400 lens.

Matthew Gore | Light And Matter For the previous few many years, it has been widespread apply to incorporate a lock on the aperture ring of lenses with an auto-aperture choice. I can’t imagine why Sony thought it was a good suggestion to desert this apply.

Autofocus & Monitoring

For motion, when capturing basketball (and a few photographs at a cheerleading competition), there was no noticeable difference in autofocus velocity and monitoring capacity. I obtained a really high proportion of sharp photographs with both lenses.

Some questions remain about whether or not the blur that I experienced with the Sigma lens on a few of my decision check photographs was the results of missed focus somewhat than vibration. I solely had the issue with the Sigma lens, but the lens was also much heavier than the Sony and I was using my Vanguard tripod with the right-angle arm prolonged slightly to get the digital camera beyond the barrier at the fringe of the falls, so it will have been more prone to vibration.


There was no considerable distinction in the vignetting efficiency of those lenses. Both lenses confirmed a noticeable amount broad open, nevertheless it was properly controlled at f/2 and past.

Matthew Gore | Light And Matter


Though bokeh is much less of a priority with extensive angle lenses than many others, each lenses did fairly nicely in my restricted checks. Taking a look at this set of out-of-focus stage lights, we see that the bokeh in each instances is nicely round with out busy artifacts or contrasty edges (although I personally just like the distinction within the bokeh of the Sigma 50mm f/1.four ART lens, for example, it’s all a matter of style). In some areas, I did see a hint of the concentric circles which might be typical of aspherical lenses within the Sigma (typically referred to as “onion rings”), however they have been simply that… hints, not apparent patterns.


Once more, I can solely supply my first impressions of these lenses: further testing is important.

Finally, each lenses are optically wonderful, particularly within the middle of the frame, but the Sony maintains an advantage in decision and sharpness away from the center of the image at f/1.4 and f/2, and within the corners (in all probability) till f/5.6.

They each have their “handling” issues: the Sony has an annoying aperture ring, and the Sigma is massive and heavy. Nevertheless, the Sony’s drawback may be fastened with tape, and the young and powerful won’t thoughts the Sigma’s weight.

Autofocus performance with both lenses is sweet for capturing action, and is sweet typically with the attainable exception of the f/four challenge on the Sigma, although that is still unclear.

And in fact, there’s the $550 worth distinction. The Sony costs right round $1400, and the Sigma costs about $850.

Which do you have to purchase? As these are each wonderful lenses, which one you should purchase will actually depend in your specific wants and the purpose you’re at in your career or pastime. If money is not any object, purchase the Sony. If cash is an object but you could have all the opposite lenses you want, nonetheless think about buying the Sony.

Think about shopping for the SONY 24mm f/1.four GM :

  • if money is not any object. It does value $550 greater than the Sigma.
  • when you shoot video and need to use the guide aperture ring on the Sigma, de-clicked.
  • when you’re a backpacker or traveler, or have health issues that advocate lightweight gear. The Sony lens is considerably lighter than the Sigma.
  • if you actually need corner to nook sharpness, even wide-open at f/1.four
  • if capturing night time skies is amongst your major pursuits (the Sony probably has higher coma correction than the Sigma, although I have not but tested this).

Think about buying the SIGMA 24mm f/1.4 ART :

  • in the event you principally shoot at f/5.6 or smaller apertures (or f/2.eight for a lot of the body), the variations in decision shall be negligible, they usually’re each very sharp lenses regardless
  • if your subjects are sometimes inside the central portion of the frame (or at the least, not at the edges)
  • For those who shoot with a 24 megapixel or lower decision sensor, the variations seen in the video above will probably be even much less visible
  • should you’re nonetheless constructing a lens collection

For those who’re still constructing a lens assortment, think about shopping for the Sigma and placing the distinction towards one other lens that you simply want (the distinction will purchase most of a Tamron 28-75mm f/2.eight or Sony 85mm f/1.eight, for instance), especially if your images doesn’t require edge-to-edge sharpness.

Questions? Comments? Strategies?

As normal, in case you have any questions or comments, please be happy to leaves them in the remark part under, and I’ll answer them as quickly as I can.