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Sigma 20mm F1.4 ART DG HSM Lens for Canon
|Price:||$899.00 & FREE Shipping|
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- Optical designs is highly resistant to strong incidental light sources such as backlight
- Minimized Chromatic aberration, distortion, and ghosting
- This lens delivers excellent brightness and bokeh and is ideal high speed lens for snapshots.
- The Sigma 20mm F1.4 DG HSM can be considered as the culmination of the Art line in relation with F1.4 series
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From the Manufacturer
20 Millimeter F1.4 DG HSM | A
Wide, Bright and Sharp
The Sigma 20 millimeter 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 35 millimeter 1.4 Art and the 24 millimeter 1.4 Art, the 20 millimeter 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 20 millimeter 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 or indoor photography and event photography. As with all Global Vision lines, the 20 millimeter will be tested using the proprietary 'A1' measuring system ensuring the highest standard of operation. The Sigma 20 millimeter 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.
About the 20 millimeter 20mm F1.4 DG HSM | A
- Outstanding Edge to Edge Performance
- Individually inspected Hand crafted in Japan
- Accessories include: Plastic Cover Lens Cap (LC907-01), carrying case
|Item Dimensions||5.1 x 3.6 x 3.6 inches|
|Item Display Weight||950 grams|
|Item Weight||2.1 pounds|
|Lens Design||Fixed Prime|
|Manufacturer Warranty Description||4 year Parts and Labor|
|Maximum Focal Length||20|
|Minimum Focal Length||20|
|Real Angle Of View||94.5 Degrees|
|Shipping Weight||2.95 pounds|
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|Shipping||FREE Shipping||FREE Shipping||FREE Shipping||FREE Shipping|
|Sold By||Circuit City||Cameta Camera||Pavilion Electronics||Amazon.com|
|Compatible Camera Mount||—||Canon EF||Canon EF||Canon|
|Focus Type||manual-focus||auto-focus||Stepper motor||manual-focus|
|Item Dimensions||3.6 x 3.6 x 5.1 in||3.3 x 3.1 x 3.3 in||2.72 x 1.54 x 2.72 in||3.45 x 3.45 x 4.83 in|
|Item Weight||2.1 lbs||1 lb||5.61 ounces||2 lbs|
|Lens Type||standard-prime||wide-angle-prime||Prime lens||Wide angle zoom|
|Maximum Focal Length||20||24||50 millimeters||35|
|Minimum Focal Length||20||24||50 millimeters||24|
|Photo Filter Thread Size||—||77 millimeters||49 millimeters||82 millimeters|
The new 20mm F1.4 DG HSM Art joins the Sigma art line. This lens is the world's first 20mm Prime lens that has achieved the large aperture F1.4 for full frame DSLRs
Top Customer Reviews
The copy I received did require some microfocus adjustments (-13 according to Reikan FoCal). Since then focus has been dead on.
f/1.4 is great to work with, although as expected the depth of field is razor thin. Pictures of my daughter had a single hair coming down in front of her face. The autofocus caught singular hair and the rest of her face (about 0.5 inches behind the hair) was clearly out of focus. Wedding photography was great. I have the relatively fast f/2.8 Tamron 24-70 zoom and I was frustrated that 2.8 was too slow (with no flash). The 20mm Sigma worked well for group and table portraits, and even for individuals, giving you a lot of blurred background.
Astrophotography. I've only done a few tests, but you likely are going to want to stop this lens down to 2.0/2.2 to get rid of vignetting and to minimize coma. Coma will still be there, but only if you are pixel peeping. I find on a few test prints, I couldn't pick it up.
I haven't been hiking with this lens yet. I will update once I have a chance to get some landscapes at F/8.0.
Did quite a bit of shooting with this lens in Costa Rica, unfortunately the moon was up and strong most of the nights. I've attached a night shot I was able to get at F2.0 of the resort and ocean
I've had the lens about a month and took it with me on a trip to Banff and Jasper in Canada. I dropped my Sigma 24-105 f/4 Art lens and smashed it, so I was left shooting with the 20mm and I have to say I am very pleased with the outcome. Images are super crisp, even in the corners. I was able to shoot well into the evening even handheld because of the wide aperture.
I haven't had a chance to use this lens for astrophotography yet, but will be heading to Moab, UT at the end of the month and will update the review then.
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 has 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 manual focus & aperture, but has almost the same field of view (and is available with an FE mount).
UPDATE 8/2016: Since this review was written, several other options with FE mounts became available, including an 18mm f/2.8 Zeiss Batis, a new 14mm f/2.8 Samyang/Rokinon with autofocus, and a Voigtlander 15mm f/4.5.
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.
Get this if you're looking for a fast landscape or low light lens, you won't be disappointed!