Sigma 24-70mm f/2.8 DG OS HSM Art Lens For Sigma
The Sigma AF 24ndash70mm f2.8 DG OS HSM Art Lens is meant for both landscape and portrait photography. It can be fitted on Sigma cameras with an SA mount. The optical design of the lens includes 19 elements in 14 groups. Three SLD and four aspherical elements are also incorporated into the design of the lens to reduce chromatic and spherical aberrations. A super multi-layer coating reduces ghosting and enhances color vibrancy and accuracy. With the Hyper Sonic AF motor the lens facilitates a fast and noise-free autofocusing. Its nine-blade diaphragm ensures a smooth bokeh effect on images. The lens has an optical stabilizer that reduces camera shakes while shooting handheld. This lens has a composite-material body and brass-bayonet mount.
The Sigma AF 24ndash70mm f2.8 DG OS HSM Art Lens is meant for both landscape and portrait photography. It can be fitted on Sigma cameras with an SA mount. The optical design of the lens includes 19 elements in 14 groups. Three SLD and four aspherical elements are also incorporated into the design of the lens to reduce chromatic and spherical aberrations. A super multi-layer coating reduces ghosting and enhances color vibrancy and accuracy. With the Hyper Sonic AF motor the lens facilitates a fast and noise-free autofocusing. Its nine-blade diaphragm ensures a smooth bokeh effect on images. The lens has an optical stabilizer that reduces camera shakes while shooting handheld. This lens has a composite-material body and brass-bayonet mount.
The Sigma AF 24ndash70mm f2.8 DG OS HSM Art Lens is meant for both landscape and portrait photography. It can be fitted on Sigma cameras with an SA mount. The optical design of the lens includes 19 elements in 14 groups. Three SLD and four aspherical elements are also incorporated into the design of the lens to reduce chromatic and spherical aberrations. A super multi-layer coating reduces ghosting and enhances color vibrancy and accuracy. With the Hyper Sonic AF motor the lens facilitates a fast and noise-free autofocusing. Its nine-blade diaphragm ensures a smooth bokeh effect on images. The lens has an optical stabilizer that reduces camera shakes while shooting handheld. This lens has a composite-material body and brass-bayonet mount.
The Sigma AF 24ndash70mm f2.8 DG OS HSM Art Lens is meant for both landscape and portrait photography. It can be fitted on Sigma cameras with an SA mount. The optical design of the lens includes 19 elements in 14 groups. Three SLD and four aspherical elements are also incorporated into the design of the lens to reduce chromatic and spherical aberrations. A super multi-layer coating reduces ghosting and enhances color vibrancy and accuracy. With the Hyper Sonic AF motor the lens facilitates a fast and noise-free autofocusing. Its nine-blade diaphragm ensures a smooth bokeh effect on images. The lens has an optical stabilizer that reduces camera shakes while shooting handheld. This lens has a composite-material body and brass-bayonet mount.
in 33 offers
The lowest price for Sigma 24-70mm f/2.8 DG OS HSM Art Lens For Sigma right now is $1,457.96 at Camera Electronic, compared across 23 retailers.
The all-time low was $998.91 on 16 Mar 2026 — today's price is 46% above the lowest ever. It has been notably cheaper before — worth setting a price alert.
Prices last updated 11 June 2026.
Last updated at 11/06/2026 00:04:31
Sigma 4576955 24-70mm f/2.8 DG OS HSM Art Optical Lens for Nikon, Black
Free delivery
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
Sigma 24-70mm f/2.8 DG OS HSM Art Lens for Sigma SA
Delivery $15
Sigma 24-70mm f/2.8 DG OS HSM Art Lens for Canon EF
Delivery $15
Sigma 24-70mm f/2.8 DG OS HSM Art Lens for Nikon F
Delivery $15
Sigma 24-70mm f 2.8 DG OS HSM Art Standard Zoom Lens for Nikon F Mount with Optical Stabiliser
Delivery $9.95
Sigma 24-70mm f 2.8 DG OS HSM Art Standard Zoom Lens for Canon EF Mount with Optical Stabiliser
Delivery $9.95
Sigma 24-70mm f/2.8 DG OS HSM Art Lens Canon EF
Delivery $26.90
Sigma 24-70mm f/2.8 DG OS HSM Art Lens for Nikon F
Free delivery between 17–24 June
Sigma 24-70mm F2.8 DG OS HSM Art for Canon EF Mount Lens
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Sigma 24-70mm f/2.8 DG OS HSM Art Nikon Lens - Brand New
Free delivery between 15–19 June
originally posted on adorama.com
I have a Canon EOS 5D mark I which I love for its color rendering. I have several other more recent modern cameras bodies but none of them has good colors as the classic 5D.The major problem of 5D is that it does not have in camera micro focus adjustment, so most Canon large aperture lenses (including expensive L lenses) do not work well with it, until I bought Sigma 24-70/2.8 Art with Sigma USB dock. After tuning, the Art lens works perfectly with my beloved 5D. It's re-born and become my favorite camera, again!Plus, this lens works well on my Sony A7R2 mirrorless cameras with Sigma MC-11 adapter, too. One lens for 2 systems.The only cons is that this lens is very heavy.
originally posted on bhphotovideo.com
First, let me say that I was very excited about this lens when I first heard about it. The day is went up for preorder, I jumped on the internet and bought one, based solely on the positive reviews that Sigma's Art series of lenses has been getting. I have owned (still do, in fact) several older Sigma lenses, and they are ok, but definitely not professional quality, so I couldn't wait to see what all the fuss was about with Sigma's newer lenses. I somehow got my copy less than a week after preorder opened; the store I bought it from, to this day, still lists the lens as alternatively back-ordered or unavailable, so maybe I got the only copy they had. So, like a kid in a candy store, I ripped it out of the box and sat and stared in awe. Unfortunately, I then took a ... MoreFirst, let me say that I was very excited about this lens when I first heard about it. The day is went up for preorder, I jumped on the internet and bought one, based solely on the positive reviews that Sigma's Art series of lenses has been getting. I have owned (still do, in fact) several older Sigma lenses, and they are ok, but definitely not professional quality, so I couldn't wait to see what all the fuss was about with Sigma's newer lenses. I somehow got my copy less than a week after preorder opened; the store I bought it from, to this day, still lists the lens as alternatively back-ordered or unavailable, so maybe I got the only copy they had. So, like a kid in a candy store, I ripped it out of the box and sat and stared in awe. Unfortunately, I then took a picture with it. A week later, heartbroken, I returned it - I waited over a month for a replacement, then gave up and cancelled the order entirely once I started seeing other people's reviews backing up my findings. I will try to explain.... First Impressions: This lens is a beauty, no doubt about it. Hands down, the most beautiful camera lens I have ever owned. It's big, it's heavy, its made of shiny metal, textured plastic, and soft rubber in all the right ways and places. When you put it on your camera, it really looks like you mean business. It's also packaged really well, in a very nice box (much nicer even then Nikon's hilariously expensive 24-70 VR), and comes with a very well made lens hood, caps, and soft case. Really, it's a testament to the attention Sigma is paying to design with their products. In operation, the awesomeness continues. It has weathersealing around the bayonet, so when it clicks firmly into place, it stays there. Other, cheaper, lenses wobble a bit (yes, even Nikons), but this guy feels like it becomes one with the camera. The zoom is solid and well-damped, and VERY quiet (none of that whispy sound you can sometimes get, like plastic rubbing on plastic). Likewise, the zoom ring turns easily with one finger but stays put when you leave it be. Autofocus is super quiet; maybe, in fact, the most silent focus I have ever used - even during video mode, all you really get from the in-camera mic is a soft whoosh-whoosh sound, really amazing. The switches are a little tough to operate, but this can be forgiven as they blend so seamlessly into the body that you can forget they are there. Shooting: I will put a disclaimer on the rest of this review: It is entirely possible that I got some sort of defective copy. In fact, I very much HOPE I got a defective copy. I will also add that I tried this lens on a D5100, a D7100, a D500, and a D800, so please don't assume it was my camera that was the problem. In fact, I noticed varying degrees of defectiveness based on which camera I used, the worst being on the D5100 and D800, the most tolerable on the D500. In short, your experience may vary, and that is a pretty big problem - when it comes to lenses in the $1300+ range, no one's experience should vary! These lenses should have the tightest tolerances and most demanding QC tests so that the professionals buying them can just hook them on their camera and go, not worrying about AF fine-tune and off-plane and decentered focusing. Anyway, here's the rest of the review... So, the first thing you might notice is that the lens is nice and bright. The next thing you may notice is that it doesn't seem to know how to focus. And I don't mean it hunts a little, or just misses every so often, or is even just a little soft. This lens misses focus EVERY. SINGLE. TIME. After being surprised and disappointed by the first batch of photos I took, I set up my focus chart and used the AF fine tune to try to get it right. On the D800, the worst of them all, I had it pegged at -20 (the highest adjustment possible) and it was still out of focus. The D500 was marginal at -15, but would randomly be out of focus every third or fouth shot. The D7100 actually did pretty well, requiring a -8, but the D5100 has no AF fine tune feature, and was therefore completely unusable with this lens (unless you are shooting exclusively in live-view or video). Once you get some focus, you may be alarmed to find it focuses pretty slowly, and not all confidently; this is particularly noticeable in low-light or backlight. For a wedding photographer, this is a major problem. I need lenses that focus as fast as I can push the shutter, and stay that way. Even in bright sunlight, this lens was unable to keep up with the constant AF of the D500 at 10 frames per second. I own a Sigma 50-150 from a few years ago that can do this with no problem, so why can't a brand new lens perform this trick? Image Quality: A few positives: Contrast and color rendition are superb, once focused. Skin tones are rendered perfectly, and bright colors don't seem to exhibit any shift or bloom. No chromatic aberration was visible, and this is BEFORE any kind of Lightroom lens calibration was available to automatically remove CA. Compared to the Nikon 24-70 VR, CA control is amazing on this lens. Bokeh is also quite good, better than any other mid-zoom I have used (and yes, better than Nikon's flagship, but just by a hair). More negatives: Once I got the focus thing more or less controlled, I took some more test shots and was astonished to find images that were sharp in the center were out of focus on the left side and right side! It is almost like the focal plane was at a slight angle to the sensor, so that the left side was back-focused while the right side was front-focused (and the center stayed true). It was the most evident on the D800, you maybe even be able to see it in the sample shot of the brick wall. It's not a pleasant blur, either, but more of a smear that renders those out of focus areas in a distracting way. And it was like this in every photo. Essentially, this one problem completely ruined the lens for me - it would be completely useless for anything besides photographs of small objects that fill less than 1/3 of the frame, held in the center of the frame - what photographer does that?? Landscapes are out of the question, as you need edge-to-edge sharpness for that to work, and this lens was incapable of doing that. To make matters worse, corner sharpness, even on crop-sensor DX bodies, is a complete joke (and is downright hilarious on the full-frame D800) - in fact, its so bad that you can see it even on 4x6 prints of images taken with the D800. It gives all your photos a strange, hipster-esque effect like they were taken with some cheap lens from the 60's. Final Verdict: I tried to get past these problems, thinking maybe, just maybe, if I stepped it down to F/8 it would fix everything! Nope. At some focal lengths, stepping down actually made the off-plane focus problem worse, and the entire field was useless around 50mm. OS on vs OS off didn't make any difference either. So, finally, after two weeks of working with it, I gave up and sent it back. I REALLY wanted to love this lens; I thought, in fact, that this would be the last 24-70 I would have to buy, so confident was I in Sigma's Art designation and their media releases regarding the quality and craftsmanship of this lens. At first, I just wanted an exchange - send me another, it will probably be better! After a month of waiting for a back-ordered replacement, however, I gave up and started looking for another solution.
originally posted on bhphotovideo.com
They lens is really sharp, especially at f/4 to f/5.6. It is the perfect focal length for general photo trips. It is a bit heavier than I would have liked, but I noted that it is still lighter than the Nikon 24-70mm. I just moved to FX from DX format so I bought quality glass for my new D850. The delivery from B&H was so fast I thought they were waiting down the street when I ordered!
| Focal Length | 24 to 70mm |
| Maximum Aperture | f/2.8 |
| Minimum Aperture | f/22 |
| Lens Mount | Sigma SA |
| Lens Format Coverage | Full-Frame |
Sigma 4576955 24-70mm f/2.8 DG OS HSM Art Optical Lens for Nikon, Black
Free delivery
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
Sigma 24-70mm f/2.8 DG OS HSM Art Lens for Sigma SA
Delivery $15
Sigma 24-70mm f/2.8 DG OS HSM Art Lens for Canon EF
Delivery $15
Sigma 24-70mm f/2.8 DG OS HSM Art Lens for Nikon F
Delivery $15
Sigma 24-70mm f 2.8 DG OS HSM Art Standard Zoom Lens for Nikon F Mount with Optical Stabiliser
Delivery $9.95
I have a Canon EOS 5D mark I which I love for its color rendering. I have several other more recent modern cameras bodies but none of them has good colors as the classic 5D.The major problem of 5D is that it does not have in camera micro focus adjustment, so most Canon large aperture lenses (including expensive L lenses) do not work well with it, until I bought Sigma 24-70/2.8 Art with Sigma USB dock. After tuning, the Art lens works perfectly with my beloved 5D. It's re-born and become my favorite camera, again!Plus, this lens works well on my Sony A7R2 mirrorless cameras with Sigma MC-11 adapter, too. One lens for 2 systems.The only cons is that this lens is very heavy.
First, let me say that I was very excited about this lens when I first heard about it. The day is went up for preorder, I jumped on the internet and bought one, based solely on the positive reviews that Sigma's Art series of lenses has been getting. I have owned (still do, in fact) several older Sigma lenses, and they are ok, but definitely not professional quality, so I couldn't wait to see what all the fuss was about with Sigma's newer lenses. I somehow got my copy less than a week after preorder opened; the store I bought it from, to this day, still lists the lens as alternatively back-ordered or unavailable, so maybe I got the only copy they had. So, like a kid in a candy store, I ripped it out of the box and sat and stared in awe. Unfortunately, I then took a ... MoreFirst, let me say that I was very excited about this lens when I first heard about it. The day is went up for preorder, I jumped on the internet and bought one, based solely on the positive reviews that Sigma's Art series of lenses has been getting. I have owned (still do, in fact) several older Sigma lenses, and they are ok, but definitely not professional quality, so I couldn't wait to see what all the fuss was about with Sigma's newer lenses. I somehow got my copy less than a week after preorder opened; the store I bought it from, to this day, still lists the lens as alternatively back-ordered or unavailable, so maybe I got the only copy they had. So, like a kid in a candy store, I ripped it out of the box and sat and stared in awe. Unfortunately, I then took a picture with it. A week later, heartbroken, I returned it - I waited over a month for a replacement, then gave up and cancelled the order entirely once I started seeing other people's reviews backing up my findings. I will try to explain.... First Impressions: This lens is a beauty, no doubt about it. Hands down, the most beautiful camera lens I have ever owned. It's big, it's heavy, its made of shiny metal, textured plastic, and soft rubber in all the right ways and places. When you put it on your camera, it really looks like you mean business. It's also packaged really well, in a very nice box (much nicer even then Nikon's hilariously expensive 24-70 VR), and comes with a very well made lens hood, caps, and soft case. Really, it's a testament to the attention Sigma is paying to design with their products. In operation, the awesomeness continues. It has weathersealing around the bayonet, so when it clicks firmly into place, it stays there. Other, cheaper, lenses wobble a bit (yes, even Nikons), but this guy feels like it becomes one with the camera. The zoom is solid and well-damped, and VERY quiet (none of that whispy sound you can sometimes get, like plastic rubbing on plastic). Likewise, the zoom ring turns easily with one finger but stays put when you leave it be. Autofocus is super quiet; maybe, in fact, the most silent focus I have ever used - even during video mode, all you really get from the in-camera mic is a soft whoosh-whoosh sound, really amazing. The switches are a little tough to operate, but this can be forgiven as they blend so seamlessly into the body that you can forget they are there. Shooting: I will put a disclaimer on the rest of this review: It is entirely possible that I got some sort of defective copy. In fact, I very much HOPE I got a defective copy. I will also add that I tried this lens on a D5100, a D7100, a D500, and a D800, so please don't assume it was my camera that was the problem. In fact, I noticed varying degrees of defectiveness based on which camera I used, the worst being on the D5100 and D800, the most tolerable on the D500. In short, your experience may vary, and that is a pretty big problem - when it comes to lenses in the $1300+ range, no one's experience should vary! These lenses should have the tightest tolerances and most demanding QC tests so that the professionals buying them can just hook them on their camera and go, not worrying about AF fine-tune and off-plane and decentered focusing. Anyway, here's the rest of the review... So, the first thing you might notice is that the lens is nice and bright. The next thing you may notice is that it doesn't seem to know how to focus. And I don't mean it hunts a little, or just misses every so often, or is even just a little soft. This lens misses focus EVERY. SINGLE. TIME. After being surprised and disappointed by the first batch of photos I took, I set up my focus chart and used the AF fine tune to try to get it right. On the D800, the worst of them all, I had it pegged at -20 (the highest adjustment possible) and it was still out of focus. The D500 was marginal at -15, but would randomly be out of focus every third or fouth shot. The D7100 actually did pretty well, requiring a -8, but the D5100 has no AF fine tune feature, and was therefore completely unusable with this lens (unless you are shooting exclusively in live-view or video). Once you get some focus, you may be alarmed to find it focuses pretty slowly, and not all confidently; this is particularly noticeable in low-light or backlight. For a wedding photographer, this is a major problem. I need lenses that focus as fast as I can push the shutter, and stay that way. Even in bright sunlight, this lens was unable to keep up with the constant AF of the D500 at 10 frames per second. I own a Sigma 50-150 from a few years ago that can do this with no problem, so why can't a brand new lens perform this trick? Image Quality: A few positives: Contrast and color rendition are superb, once focused. Skin tones are rendered perfectly, and bright colors don't seem to exhibit any shift or bloom. No chromatic aberration was visible, and this is BEFORE any kind of Lightroom lens calibration was available to automatically remove CA. Compared to the Nikon 24-70 VR, CA control is amazing on this lens. Bokeh is also quite good, better than any other mid-zoom I have used (and yes, better than Nikon's flagship, but just by a hair). More negatives: Once I got the focus thing more or less controlled, I took some more test shots and was astonished to find images that were sharp in the center were out of focus on the left side and right side! It is almost like the focal plane was at a slight angle to the sensor, so that the left side was back-focused while the right side was front-focused (and the center stayed true). It was the most evident on the D800, you maybe even be able to see it in the sample shot of the brick wall. It's not a pleasant blur, either, but more of a smear that renders those out of focus areas in a distracting way. And it was like this in every photo. Essentially, this one problem completely ruined the lens for me - it would be completely useless for anything besides photographs of small objects that fill less than 1/3 of the frame, held in the center of the frame - what photographer does that?? Landscapes are out of the question, as you need edge-to-edge sharpness for that to work, and this lens was incapable of doing that. To make matters worse, corner sharpness, even on crop-sensor DX bodies, is a complete joke (and is downright hilarious on the full-frame D800) - in fact, its so bad that you can see it even on 4x6 prints of images taken with the D800. It gives all your photos a strange, hipster-esque effect like they were taken with some cheap lens from the 60's. Final Verdict: I tried to get past these problems, thinking maybe, just maybe, if I stepped it down to F/8 it would fix everything! Nope. At some focal lengths, stepping down actually made the off-plane focus problem worse, and the entire field was useless around 50mm. OS on vs OS off didn't make any difference either. So, finally, after two weeks of working with it, I gave up and sent it back. I REALLY wanted to love this lens; I thought, in fact, that this would be the last 24-70 I would have to buy, so confident was I in Sigma's Art designation and their media releases regarding the quality and craftsmanship of this lens. At first, I just wanted an exchange - send me another, it will probably be better! After a month of waiting for a back-ordered replacement, however, I gave up and started looking for another solution.
They lens is really sharp, especially at f/4 to f/5.6. It is the perfect focal length for general photo trips. It is a bit heavier than I would have liked, but I noted that it is still lighter than the Nikon 24-70mm. I just moved to FX from DX format so I bought quality glass for my new D850. The delivery from B&H was so fast I thought they were waiting down the street when I ordered!
Great lens, I was hesitant at first to by? something other than a canon lens, but after much research and I decided to take a chance and I am very satisfied with my decision. The lens is sharp and the image stabilization does a fantastic job. This feature was the deciding factor for me purchasing the lens and I can tell a big difference when I take it out to shoot. In the past I would always come back with a lot of slightly blurred shots from hand movement and since using this lens all my shots are sharp.
So I bought this from BH right after the PPE convention in NYC. Very exciting as it was a few months after release. My main body at the time was the D7200, and after the initial honeymoon period, I noticed issues. Build quality is excellent, photo- color, crispness, and edges all appear near perfect for the price. It was when work really picked up I noticed that I was losing way more photos due to miss-focus (mostly backfocus). Short story, after months of tests and usage, this lens had a terrible autofocus percentage in almost every setting. It worked some of the time making fine tuning or the sigma usb dock useless. Infinity at 50+ did seem to have worse %. I don't know if the autofocus was getting worse or the fact I was losing important images for work, but I ... MoreSo I bought this from BH right after the PPE convention in NYC. Very exciting as it was a few months after release. My main body at the time was the D7200, and after the initial honeymoon period, I noticed issues. Build quality is excellent, photo- color, crispness, and edges all appear near perfect for the price. It was when work really picked up I noticed that I was losing way more photos due to miss-focus (mostly backfocus). Short story, after months of tests and usage, this lens had a terrible autofocus percentage in almost every setting. It worked some of the time making fine tuning or the sigma usb dock useless. Infinity at 50+ did seem to have worse %. I don't know if the autofocus was getting worse or the fact I was losing important images for work, but I was close to returning to Sigma when I bought the Nikon D850. Since getting the new full frame, the Sigma lens has been acting perfect. Don't really know why it fails on all my crop cameras, but works perfectly on the full frame. No other combination of body and lenses produced errors. So I guess a pretty great lens that I would rent first if you plan to use on a crop sensor. Just to be sure.
I am a photographer of many subjects. I purchased this lens specifically for athlete photos and my nature photography. It is exactly what I needed! I would have gone with the 24-105 but I wanted the f/2.8. This f stop is perfect for my early morning and late night shots. Getting the photo without having to go too high on my iso. And still be able to hand hold for a decent while without having to break out the tripod. Built sturdy. Great Quality. I highly recommend!
This is a pro level lens. For what this lens cost and for the potential money that can be made with its IQ, they are practically free. In other words it can pay for itself very very quickly if your a full time pro shooting for a living. You could buy two of these for the price of one and double your shoot with a second shooter or b-roll. Seriously i dont get why its half the cost of Nikon f mount lenses when these sigma art lens outshoot them. They are heavier, built better, solid metal and the glass leaves absolutely nothing to be desired. Quick focus, superb IQ, weather sealed. I hope sigma will come out with Z mount lenses, because if they do I expect They will outperform the highly touted Z glass Nikon makes at half the cost.
One of my favorite lenses I've ever used. It worked super well for travel trips, landscapes and even some close-up wildlife work. Took a timelapse including a moose, got star photos, back-country photos, and even documentary-style video. Works well, and is light yet rugged and sharp. Might be better than the Nikon version due to size.
I had three copies of the Nikon 24-70G and none were sharp enough for my liking on the D850. (My 17-55 DX on the D500 was sharper. (In its defense, my copy of the 17-55 is excellent)The center sharpness is on par with the other Art lenses, giving up only a little for zoom vs prime.The extreme corners are soft at all focal lengths, the worst at ends of the range (24 and 70). The entire extreme left and/or right edge is soft as well. This varied with focal length, both in severity and which edge was the worst, but was most pronounced at the short end (24-35)On my D850 this lens required considerable + micro-adjustment. I have 4 other Global Vision lenses:135mm Art = AMAZING35mm Art and 100-400 Contemporary = Excellent50mm Art = Very goodThe 135 and 100-400 ... MoreI had three copies of the Nikon 24-70G and none were sharp enough for my liking on the D850. (My 17-55 DX on the D500 was sharper. (In its defense, my copy of the 17-55 is excellent)The center sharpness is on par with the other Art lenses, giving up only a little for zoom vs prime.The extreme corners are soft at all focal lengths, the worst at ends of the range (24 and 70). The entire extreme left and/or right edge is soft as well. This varied with focal length, both in severity and which edge was the worst, but was most pronounced at the short end (24-35)On my D850 this lens required considerable + micro-adjustment. I have 4 other Global Vision lenses:135mm Art = AMAZING35mm Art and 100-400 Contemporary = Excellent50mm Art = Very goodThe 135 and 100-400 required only minor + adjustment. The 35 and 50 also required significant + micro-adjustment. The calibration procedure is not very difficult and I consider it a plus to be able to use the dock, particularly on the zooms. Spending an hour calibrating equipment to achieve better results is a no brainer for me.All that said, if you are planning on using this for landscape photography, you might want to think again. The soft area, on my copy at least, is less than 10% of the width of the frame at 24 but that may be a deal breaker for landscape. The top and bottom center was sharp all the way to the edges, so for event photography this lens is a keeper for me. The corners and extreme edges are much less important (and generally OOF anyway due to depth of field). I also generally do not frame all the way to the edge and end up cropping 10% off in PP. So the softness issue is not a problem. YMMV.
I know it looks like I have given this lens 5 stars, but really I only rate it as 4.5 for corner softness. Bottom line, it is a good lens with some limitations in the corners at and below f 4. Its corner performance improves as the focal length increases. No shocking news there. Its center performance (and the mid area performance) is excellent. I would almost compare the center's performance at 35mm and 50mm with those of my Sigma Art primes. It really is that good. Now the bad news, it's heavy, but I can take two prime lenses out of my bag when I am walking around taking photos on a trip. Second, you have got to use the Sigma Dock to adjust this lens. Just out of the box the lens on my D850 was awful (I was about to pack it back up and ship it back to B&H). At ... MoreI know it looks like I have given this lens 5 stars, but really I only rate it as 4.5 for corner softness. Bottom line, it is a good lens with some limitations in the corners at and below f 4. Its corner performance improves as the focal length increases. No shocking news there. Its center performance (and the mid area performance) is excellent. I would almost compare the center's performance at 35mm and 50mm with those of my Sigma Art primes. It really is that good. Now the bad news, it's heavy, but I can take two prime lenses out of my bag when I am walking around taking photos on a trip. Second, you have got to use the Sigma Dock to adjust this lens. Just out of the box the lens on my D850 was awful (I was about to pack it back up and ship it back to B&H). At 24mm and f 2.8 to 5.6 it was completely blurry from edge to edge. However, once I used the dock to adjust the lens for my camera it shines.
| Focal Length | 24 to 70mm |
| Maximum Aperture | f/2.8 |
| Minimum Aperture | f/22 |
| Lens Mount | Sigma SA |
| Lens Format Coverage | Full-Frame |
