Sigma 20mm f/1.4 DG HSM Art Lens - Sony E Mount
Incredible rendering performance delivers unprecedented visual experiences. Enjoy enhanced control of light and composition. The Sigma 20mm 1.4 DG HSM Art is a state of the art wide-angle prime lens designed for Full Frame cameras but will work with APS-C sensors as well. Using over 50 years of lens making experience, particularly the knowledge gained from the 35mm 1.4 Art and the 24mm 1.4 Art, the 20mm 1.4 Art is the widest large aperture Art lens to date. The latest optical design allows for the utmost in image quality with careful attention paid to edge to edge performance. Through decades of experience in lens design and Sigma Global Vision lens manufacturing, the 20mm incorporates both “F” Low Dispersion (FLD) glass, and five Special Low Dispersion (SLD) glass in a design of 15 elements in 11 groups. The combination of advanced optics and optimized lens power distribution minimizes spherical aberration, axial chromatic aberration and field curvature, producing outstanding image quality. With class leading performance, this lens is ideal for landscape photography, videography, astrophotography, lowlight/indoor photography and event photography. As with all Global Vision lines, the 20mm will be tested using the proprietary “A1” measuring system ensuring the highest standard of operation. The Sigma 20mm Art is compatible with the USB dock to update and customize and is also compatible with the Mount Conversion Service. A staple procedure for the Global Vision lines, every lens will be tested using the proprietary “A1” measuring system.
Incredible rendering performance delivers unprecedented visual experiences. Enjoy enhanced control of light and composition. The Sigma 20mm 1.4 DG HSM Art is a state of the art wide-angle prime lens designed for Full Frame cameras but will work with APS-C sensors as well. Using over 50 years of lens making experience, particularly the knowledge gained from the 35mm 1.4 Art and the 24mm 1.4 Art, the 20mm 1.4 Art is the widest large aperture Art lens to date. The latest optical design allows for the utmost in image quality with careful attention paid to edge to edge performance. Through decades of experience in lens design and Sigma Global Vision lens manufacturing, the 20mm incorporates both “F” Low Dispersion (FLD) glass, and five Special Low Dispersion (SLD) glass in a design of 15 elements in 11 groups. The combination of advanced optics and optimized lens power distribution minimizes spherical aberration, axial chromatic aberration and field curvature, producing outstanding image quality. With class leading performance, this lens is ideal for landscape photography, videography, astrophotography, lowlight/indoor photography and event photography. As with all Global Vision lines, the 20mm will be tested using the proprietary “A1” measuring system ensuring the highest standard of operation. The Sigma 20mm Art is compatible with the USB dock to update and customize and is also compatible with the Mount Conversion Service. A staple procedure for the Global Vision lines, every lens will be tested using the proprietary “A1” measuring system.
Incredible rendering performance delivers unprecedented visual experiences. Enjoy enhanced control of light and composition. The Sigma 20mm 1.4 DG HSM Art is a state of the art wide-angle prime lens designed for Full Frame cameras but will work with APS-C sensors as well. Using over 50 years of lens making experience, particularly the knowledge gained from the 35mm 1.4 Art and the 24mm 1.4 Art, the 20mm 1.4 Art is the widest large aperture Art lens to date. The latest optical design allows for the utmost in image quality with careful attention paid to edge to edge performance. Through decades of experience in lens design and Sigma Global Vision lens manufacturing, the 20mm incorporates both “F” Low Dispersion (FLD) glass, and five Special Low Dispersion (SLD) glass in a design of 15 elements in 11 groups. The combination of advanced optics and optimized lens power distribution minimizes spherical aberration, axial chromatic aberration and field curvature, producing outstanding image quality. With class leading performance, this lens is ideal for landscape photography, videography, astrophotography, lowlight/indoor photography and event photography. As with all Global Vision lines, the 20mm will be tested using the proprietary “A1” measuring system ensuring the highest standard of operation. The Sigma 20mm Art is compatible with the USB dock to update and customize and is also compatible with the Mount Conversion Service. A staple procedure for the Global Vision lines, every lens will be tested using the proprietary “A1” measuring system.
Incredible rendering performance delivers unprecedented visual experiences. Enjoy enhanced control of light and composition. The Sigma 20mm 1.4 DG HSM Art is a state of the art wide-angle prime lens designed for Full Frame cameras but will work with APS-C sensors as well. Using over 50 years of lens making experience, particularly the knowledge gained from the 35mm 1.4 Art and the 24mm 1.4 Art, the 20mm 1.4 Art is the widest large aperture Art lens to date. The latest optical design allows for the utmost in image quality with careful attention paid to edge to edge performance. Through decades of experience in lens design and Sigma Global Vision lens manufacturing, the 20mm incorporates both “F” Low Dispersion (FLD) glass, and five Special Low Dispersion (SLD) glass in a design of 15 elements in 11 groups. The combination of advanced optics and optimized lens power distribution minimizes spherical aberration, axial chromatic aberration and field curvature, producing outstanding image quality. With class leading performance, this lens is ideal for landscape photography, videography, astrophotography, lowlight/indoor photography and event photography. As with all Global Vision lines, the 20mm will be tested using the proprietary “A1” measuring system ensuring the highest standard of operation. The Sigma 20mm Art is compatible with the USB dock to update and customize and is also compatible with the Mount Conversion Service. A staple procedure for the Global Vision lines, every lens will be tested using the proprietary “A1” measuring system.
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The lowest price for Sigma 20mm f/1.4 DG HSM Art Lens - Sony E Mount right now is $1,025.00 at cccwarehouse.com.au, compared across 25 retailers.
The all-time low was $689.74 on 11 May 2026 — today's price is 49% above the lowest ever. It has been notably cheaper before — worth setting a price alert.
Prices last updated 3 June 2026.
Last updated at 03/06/2026 23:02:42
Sigma 4412955 20mm f/1.4 DG HSM Art Lens for Nikon, Black
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Sigma 20mm f/1.4 DG HSM Art Lens Leica L Mount (Full Frame)
Delivery $26.90
Sigma 20mm f/1.4 DG HSM Art Lens for Leica L - Brand New
Free delivery between 8–12 June
Sigma 20mm f/1.4 DG HSM Art Lens for Sony E - Brand New
Free delivery between 8–12 June
Sigma 20mm F1.4 Dg Hsm Art Lens - Sony Fe
Free delivery
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Sigma 20mm F1.4 Dg Hsm | Art (l Mount)
Free delivery
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Sigma 20mm F1.4 Dg Hsm Art Lens - L Mount
Free delivery
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Sigma 20Mm F/1.4 Dg Hsm Art Lens For Nikon F
Delivery $81.44
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Sigma 20mm F/1.4 Dg Hsm Art Lens For L-mount (4412969) + Bonus Sd Card
Delivery $5
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Sigma 20mm f1.4 DG HSM Art Lens - Sony FE
Delivery $10
originally posted on bhphotovideo.com
There are plenty of technical reviews on the Web; I won't repeat specs here except to rectify an error in other reviews on this site. A couple incorrectly state the field of view. Per Sigma, FOV for the 20mm Art is 94.5 degrees. As often repeated, this lens is a solid handful. If you have, or have used Canon's 24-70 F/2.8L series II, you'll have a good idea of the heft and size of Sigma's 20mm F/1.4 Art. I knew the size and weight before buying, so I don't consider those cons. I've had this lens only a few days, long enough to run various tests to confirm it works as expected. It's quite sharp in center, softer at the edges and vignettes badly wide open. As stated in most reviews, these issues improve as one stops down. I found softness due to diffraction appears ... MoreThere are plenty of technical reviews on the Web; I won't repeat specs here except to rectify an error in other reviews on this site. A couple incorrectly state the field of view. Per Sigma, FOV for the 20mm Art is 94.5 degrees. As often repeated, this lens is a solid handful. If you have, or have used Canon's 24-70 F/2.8L series II, you'll have a good idea of the heft and size of Sigma's 20mm F/1.4 Art. I knew the size and weight before buying, so I don't consider those cons. I've had this lens only a few days, long enough to run various tests to confirm it works as expected. It's quite sharp in center, softer at the edges and vignettes badly wide open. As stated in most reviews, these issues improve as one stops down. I found softness due to diffraction appears above F/8, but DOF at F/8 is enormous, so this won't present a problem for most photographers. Edge distortion is considerable, but not unexpected in a lens of this sort. This lens is not weather sealed; the usual cautions apply if you shoot in wet or sub-freezing conditions. I'd call it a bargain, sure to be very useful, and its problems aren't unexpected in this price range. For me, the pros outweigh the cons. My copy, on my Canon EOS 5D MkIII, back focused at all of the four distances specified by Sigma's calibration software (used with their USB dock). Given that the lens must be checked, unmounted from the camera, mounted onto the dock, adjusted, unmounted from the dock, mounted to the camera, rechecked (shoot and view the results), and that I had to repeat this a couple dozen times, the process can only be described as tedious and time consuming. In the end I got very good results, but it wasn't easy!
originally posted on bhphotovideo.com
Beautiful. Well constructed. Heavy. Really slow to autofocus in video mode. Using the Sony A6500. Unusable without all settings set to fastest focus and responsiveness. Even at those settings, this lens takes 4x longer when actively focusing than all my native sony lenses. Worst yet is that it often simply doesn't adjust focus at all, for example when panning over to a very nearby object, or having a subject walk into frame. Spot focus / touchscreen focus can ameliorate this somewhat.Unfortunately there are no reasonably priced fast sony lenses in this genre, so this will make due for now. It is NOT even close to as effective in video AF-C focusing as native sony glass, though.
originally posted on adorama.com
I wanted to use this lens for Astrophotography as well as event photography, both on my Canon EOS 5Ds R. I took my first test shot within minutes from receiving my copy, a few indoor shots. First picture, blurry, more shots, more blurries. Go to manual and it is beautiful, crisp, exactly what I wanted. Tripod, wire release, AF and it's shooting blurries. BAD backfocus.USB dock and 4 hours later, I got it to focus OK up to 2-2.5 ft but either works at 4ft or at infinity, never both. Managed to calibrate AF when mounted on a 7D, but then the lens does fornt focus (~1 in) on short distance and back focus (~2 in) on 4ft+ when mounted to the 5Ds R. None of these issues with any of my 4 L-series lenses.I contacted Sigma USA and they were good with getting back to me, ... MoreI wanted to use this lens for Astrophotography as well as event photography, both on my Canon EOS 5Ds R. I took my first test shot within minutes from receiving my copy, a few indoor shots. First picture, blurry, more shots, more blurries. Go to manual and it is beautiful, crisp, exactly what I wanted. Tripod, wire release, AF and it's shooting blurries. BAD backfocus.USB dock and 4 hours later, I got it to focus OK up to 2-2.5 ft but either works at 4ft or at infinity, never both. Managed to calibrate AF when mounted on a 7D, but then the lens does fornt focus (~1 in) on short distance and back focus (~2 in) on 4ft+ when mounted to the 5Ds R. None of these issues with any of my 4 L-series lenses.I contacted Sigma USA and they were good with getting back to me, offered to mail the (new) lens back to them for calibration. I simply don't trust that since the same lens behaves so different on my two canon bodies.Not sure if I had a bad copy or if this lens just doesn't like the 5Ds R, but this lens is going back, with a tears for the optical quality when properly focused is stunning. However, I spent almost 2 days playing combinations of USB firmware calibration and in-camera AF micro adjustments - more time than I should have spent.
| Focal Length | 20mm |
| Maximum Aperture | f/1.4 |
| Minimum Aperture | f/16 |
| Lens Mount | Sony E |
| Lens Format Coverage | Full-Frame |
Sigma 4412955 20mm f/1.4 DG HSM Art Lens for Nikon, Black
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 20mm f/1.4 DG HSM Art Lens Leica L Mount (Full Frame)
Delivery $26.90
Sigma 20mm f/1.4 DG HSM Art Lens for Leica L - Brand New
Free delivery between 8–12 June
Sigma 20mm f/1.4 DG HSM Art Lens for Sony E - Brand New
Free delivery between 8–12 June
Sigma 20mm F1.4 Dg Hsm Art Lens - Sony Fe
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!
There are plenty of technical reviews on the Web; I won't repeat specs here except to rectify an error in other reviews on this site. A couple incorrectly state the field of view. Per Sigma, FOV for the 20mm Art is 94.5 degrees. As often repeated, this lens is a solid handful. If you have, or have used Canon's 24-70 F/2.8L series II, you'll have a good idea of the heft and size of Sigma's 20mm F/1.4 Art. I knew the size and weight before buying, so I don't consider those cons. I've had this lens only a few days, long enough to run various tests to confirm it works as expected. It's quite sharp in center, softer at the edges and vignettes badly wide open. As stated in most reviews, these issues improve as one stops down. I found softness due to diffraction appears ... MoreThere are plenty of technical reviews on the Web; I won't repeat specs here except to rectify an error in other reviews on this site. A couple incorrectly state the field of view. Per Sigma, FOV for the 20mm Art is 94.5 degrees. As often repeated, this lens is a solid handful. If you have, or have used Canon's 24-70 F/2.8L series II, you'll have a good idea of the heft and size of Sigma's 20mm F/1.4 Art. I knew the size and weight before buying, so I don't consider those cons. I've had this lens only a few days, long enough to run various tests to confirm it works as expected. It's quite sharp in center, softer at the edges and vignettes badly wide open. As stated in most reviews, these issues improve as one stops down. I found softness due to diffraction appears above F/8, but DOF at F/8 is enormous, so this won't present a problem for most photographers. Edge distortion is considerable, but not unexpected in a lens of this sort. This lens is not weather sealed; the usual cautions apply if you shoot in wet or sub-freezing conditions. I'd call it a bargain, sure to be very useful, and its problems aren't unexpected in this price range. For me, the pros outweigh the cons. My copy, on my Canon EOS 5D MkIII, back focused at all of the four distances specified by Sigma's calibration software (used with their USB dock). Given that the lens must be checked, unmounted from the camera, mounted onto the dock, adjusted, unmounted from the dock, mounted to the camera, rechecked (shoot and view the results), and that I had to repeat this a couple dozen times, the process can only be described as tedious and time consuming. In the end I got very good results, but it wasn't easy!
Beautiful. Well constructed. Heavy. Really slow to autofocus in video mode. Using the Sony A6500. Unusable without all settings set to fastest focus and responsiveness. Even at those settings, this lens takes 4x longer when actively focusing than all my native sony lenses. Worst yet is that it often simply doesn't adjust focus at all, for example when panning over to a very nearby object, or having a subject walk into frame. Spot focus / touchscreen focus can ameliorate this somewhat.Unfortunately there are no reasonably priced fast sony lenses in this genre, so this will make due for now. It is NOT even close to as effective in video AF-C focusing as native sony glass, though.
I wanted to use this lens for Astrophotography as well as event photography, both on my Canon EOS 5Ds R. I took my first test shot within minutes from receiving my copy, a few indoor shots. First picture, blurry, more shots, more blurries. Go to manual and it is beautiful, crisp, exactly what I wanted. Tripod, wire release, AF and it's shooting blurries. BAD backfocus.USB dock and 4 hours later, I got it to focus OK up to 2-2.5 ft but either works at 4ft or at infinity, never both. Managed to calibrate AF when mounted on a 7D, but then the lens does fornt focus (~1 in) on short distance and back focus (~2 in) on 4ft+ when mounted to the 5Ds R. None of these issues with any of my 4 L-series lenses.I contacted Sigma USA and they were good with getting back to me, ... MoreI wanted to use this lens for Astrophotography as well as event photography, both on my Canon EOS 5Ds R. I took my first test shot within minutes from receiving my copy, a few indoor shots. First picture, blurry, more shots, more blurries. Go to manual and it is beautiful, crisp, exactly what I wanted. Tripod, wire release, AF and it's shooting blurries. BAD backfocus.USB dock and 4 hours later, I got it to focus OK up to 2-2.5 ft but either works at 4ft or at infinity, never both. Managed to calibrate AF when mounted on a 7D, but then the lens does fornt focus (~1 in) on short distance and back focus (~2 in) on 4ft+ when mounted to the 5Ds R. None of these issues with any of my 4 L-series lenses.I contacted Sigma USA and they were good with getting back to me, offered to mail the (new) lens back to them for calibration. I simply don't trust that since the same lens behaves so different on my two canon bodies.Not sure if I had a bad copy or if this lens just doesn't like the 5Ds R, but this lens is going back, with a tears for the optical quality when properly focused is stunning. However, I spent almost 2 days playing combinations of USB firmware calibration and in-camera AF micro adjustments - more time than I should have spent.
I rented this lens for a week-long trip to the desert in Southern California and used it for both landscape and astrophotography. I rented the Canon mount version for my Sony alpha 7RII body and Metabones IV adapter, and it autofocused in decent light quickly and accurately. The lens is big, heavy, and highly capable. Whether its capability offsets the weight, size and one unfortunate design decision depends on what kind of photography you do. The negatives: The lens weighs about 2 pounds/950 grams, a lot more than my camera. It's 3.6/91mm in diameter and 5.1/130mm long. The front element bulges out and makes it impossible to attach screw-in filters. Sigma designed it with a permanent lens shade that makes it impractical to attach an adapter for Lee or Cokin ... MoreI rented this lens for a week-long trip to the desert in Southern California and used it for both landscape and astrophotography. I rented the Canon mount version for my Sony alpha 7RII body and Metabones IV adapter, and it autofocused in decent light quickly and accurately. The lens is big, heavy, and highly capable. Whether its capability offsets the weight, size and one unfortunate design decision depends on what kind of photography you do. The negatives: The lens weighs about 2 pounds/950 grams, a lot more than my camera. It's 3.6/91mm in diameter and 5.1/130mm long. The front element bulges out and makes it impossible to attach screw-in filters. Sigma designed it with a permanent lens shade that makes it impractical to attach an adapter for Lee or Cokin filters. The lens shade protects that bulbous front element, but if the shade is damaged, the entire lens would have to be sent for repair. It would be better if the user could detach the lens shade and replace it with a new one, and it would be even better if the design allowed the use of an adapter for ND filters. The lens has significant curvature of field when you focus on close objects, although in use that wasn't a problem. The positives: Image quality is very high. The lens is beautifully built, with a large, smooth focus ring. The f/1.4 aperture allowed me to use focus peaking on the stars, which solved a problem that's common in astrophotography you can't rely on the infinity setting of a lens to accurate focus on the stars. And weight and size are a non-issue if you frequently use a tripod. The wide aperture is also very helpful in shooting architectural interiors. The lens has a 104 degree field of view, about 10 degrees wider than a 24mm lens. If you really need that extra width, this lens may be perfect. The obvious alternatives (at least for Sony alpha bodies) include the very good Sigma 24mm f/1.4, which weighs only 2/3rds as much and which will accept 77mm screw-in filters, but only a 94 degree field of view. For the widest field of view, consider either the much less expensive, much lighter and more cheaply made manual Rokinon 14mm f/2.8 lens or the much more expensive, lighter and much smaller Zeiss 21mm Loxia, which is also manual (but is available with an FE mount). The lens comes with a rear lens cap and a deep cylindrical front lens cap made of plastic that slips over the lens shade. You can buy a metal front cap, but the plastic one seems perfectly adequate.
The lens is built like a tank. You get that impression when the package arrives, before you see it. It's heavy, solidly built and feels very good in the hand (it's nearly as heavy as the 70-200mm F2.8). With a lens that heavy and well built, you'd expect it to have great picture quality and...it doesn't disappoint. I've used the lens professionally for real estate photography and expect to use it on other projects as well. It's bright, fast and wide—perfect for architectural, landscape and night skies (I experimented just one night with a few pictures and wow! It's awesome). I've experimented shooting wide open at 1.4 - 2.0 and didn't see a noticeable difference in sharpness, although I preferred shooting at around 1.8 - 2.0. I highly recommend it!
So grateful for this company. I’ve been renting from LensRental for 13 years now. My lens usually arrives early or on time most every time. This past rental was cutting it close with the delivering company not showing any movement for several days but Sia, Megan and their teams members stayed on top and even offered to over night a lens to make sure it’s arrival was timely for a shoot. Their replies were prompt, personal, and professional. Thank you for hiring team members that are dedicated not only to the brand and company but who reflect care, compassion and heart.
I had been waiting for the Sigma 20mm f1.4 to come out for the Sony E-Mount for about 6 months when I finally received it. To say I was excited to get it on my Sony A7rii and start shooting is an understatement. At first, I have to admit, I was incredibly disappointed with the slow speed of the autofocus... I shoot a ton of photos of my dog, so autofocus is necessary, and one that works fast. I was close to sending it back because of how unresponsive the autofocus was (when using Single-Shot Autofocus). The lens does take a while to get a focus point & it's pretty noisy while doing so.I wanted it to work out, so I started using it on full manual focus just so I could see how the lens performed. I shot a few portrait sessions and totally fell in love with the lens. ... MoreI had been waiting for the Sigma 20mm f1.4 to come out for the Sony E-Mount for about 6 months when I finally received it. To say I was excited to get it on my Sony A7rii and start shooting is an understatement. At first, I have to admit, I was incredibly disappointed with the slow speed of the autofocus... I shoot a ton of photos of my dog, so autofocus is necessary, and one that works fast. I was close to sending it back because of how unresponsive the autofocus was (when using Single-Shot Autofocus). The lens does take a while to get a focus point & it's pretty noisy while doing so.I wanted it to work out, so I started using it on full manual focus just so I could see how the lens performed. I shot a few portrait sessions and totally fell in love with the lens. The sharpness is insane and the bokeh is beautiful when shooting at f1.4. I also use it for landscape photography and the entire image is incredibly sharp at f8. What truly blew me away was it's capability to capture night photos. At f1.4, I don't have to crank my ISO super high to get a bright, beautiful and sharp astro photo.I did notice that the autofocus seems to respond quicker when I shoot on Continuous Autofocus as opposed to Single-Shot Autofocus, this might be helpful to anyone using it on a moving subject :)
Considering that this lens is the widest lens near this fast for full frame systems, and that it is as sharp and contrasty as it is, it is essentially a steal at its going price. If this lens had a Nikon or Canon badge on it, people would be praising it, and it would be twice this price.The pros: it is sharp, even wide open, in the center, and sharpens up nicely in the corners after being stopped down 2-3 stops. Same goes for vignetting. The color and contrast is beautiful, and with the ability to use such a wide lens to isolate near subjects by way of the large max aperture, it provides a very unique tool.The cons: it's heavy, it's large and there is no easy way to utilize filters. The coma in the corners and extreme edges when shooting stars wide open (through ... MoreConsidering that this lens is the widest lens near this fast for full frame systems, and that it is as sharp and contrasty as it is, it is essentially a steal at its going price. If this lens had a Nikon or Canon badge on it, people would be praising it, and it would be twice this price.The pros: it is sharp, even wide open, in the center, and sharpens up nicely in the corners after being stopped down 2-3 stops. Same goes for vignetting. The color and contrast is beautiful, and with the ability to use such a wide lens to isolate near subjects by way of the large max aperture, it provides a very unique tool.The cons: it's heavy, it's large and there is no easy way to utilize filters. The coma in the corners and extreme edges when shooting stars wide open (through about f/4) is disappointing, but again, considering how wide and fast this lens is at this price, is workable by slightly cropping and pretending you're shooting a 24mm lens in this circumstance, or just not pixel peeping.I wrote up a more involved review, shooting it on both a Canon 5D2 and adapted to a Sony a7II here: https://tysonrobichaudphotography.wordpress.com/2016/01/06/sigma-art-20mm-f1-4-lens-a-user-review-w-adorama/Adorama had originally lent me this lens earlier this year for review, and I just bought it (7 months later) because I missed having it, and knew that I couldn't find another lens that would provide me with the skill set that this one did.If you need a remarkably fast, ultra wide angle lens, this is your current option, essentially, and it is a great one in my opinion.
I use this lens predominately for video during talking head segments, product shots, and short vlog sections. It's beefy but the IQ makes it absolutely worth lugging around. This lens is very sharp and produces wonderful contrast. The background melts away in true Sigma Art fashion and creates a great visual scene. The 20mm f1.4 has a unique look that is great for landscape portraits too. All pictures come out tack sharp! Auto focus is smooth and responsive, leagues better than my Sigma 35mm 1.4 Art. I would recommend this beast of a lens for photo and video!
I have recently upgraded all of my equipment for landscape and night photography. I am a Canon user, faithful to the 5D Mark IV. Before investing in a wide angle lens, I compared the Sigma arts (14, 20, 24mm) with the Canon Prime ~equivalents, read many reviews, and decided that the 20mm was the right quality for price. I am a teacher, so price point was important. This lens is a beast, heavy and stable. I have not had any trouble with auto-focus, although I am using it primarily in manual. Amazing star quality, with some expected comas at the edge of the frame. I bumped up to f/2 to help reduce this. I am very impressed with Sigma Art and glad that I did not spend the extra $$ for the 14mm. The photo was taken in March, right at the start of Milky Way season. If ... MoreI have recently upgraded all of my equipment for landscape and night photography. I am a Canon user, faithful to the 5D Mark IV. Before investing in a wide angle lens, I compared the Sigma arts (14, 20, 24mm) with the Canon Prime ~equivalents, read many reviews, and decided that the 20mm was the right quality for price. I am a teacher, so price point was important. This lens is a beast, heavy and stable. I have not had any trouble with auto-focus, although I am using it primarily in manual. Amazing star quality, with some expected comas at the edge of the frame. I bumped up to f/2 to help reduce this. I am very impressed with Sigma Art and glad that I did not spend the extra $$ for the 14mm. The photo was taken in March, right at the start of Milky Way season. If you are debating between the 20mm and 24mm, I would definitely go with this one (the 20), because with cropping in post-production, I would not have wanted more of the night sky cut out of the shot.
| Focal Length | 20mm |
| Maximum Aperture | f/1.4 |
| Minimum Aperture | f/16 |
| Lens Mount | Sony E |
| Lens Format Coverage | Full-Frame |
