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Sigma 19mm f/2.8 EX DN

Sigma 19mm f/2.8 EX DN
Sigma 19mm f/2.8 EX DN
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Initial Price: 
$280
  • Super Multi-Layer Coating
  • Three glass mold aspherical lenses
  •  Inner focusing system
  • 7 blades (Circular aperture)
  • Metal mount
Sigma 19mm f/2.8 EX DN
Sigma 19mm f/2.8 EX DN lens construction
MTF Charts: 
Sigma 19mm f/2.8 EX DN mtf chart

Overview

Description by Sigma:

  • Sigma DN ( Digital Neo) lens: High performance lenses, designed exclusively for mirrorless interchangeable lens cameras.
  • Ultra compact construction weighing only 4.9 oz and measuring 1.8 inches in length
  • Newly developed linear AF motor ensures accurate and quiet autofocuing, making the lens ideal for video recording as well as still photos.

This high-performance wide angle lens is designed exclusively for mirrorless interchangeable lens cameras and has the equivalent angle of view as a 38mm (35mm equivalent focal length) on the Micro Four Thirds systems and 28.5mm (35mm equivalent focal length) on the E-mount systems.
Three glass mold aspherical lenses provide excellent correction for distortion, color aberration and field curvature. The inner focusing system corrects the fluctuation of aberration to maintain image quality regardless of the focal distance. Sigma's Super Multi-Layer Coating reduces flare and ghosting and provides sharp and high contrast images even at the maximum aperture. The superior telecentric optical design improves image quality throughout the frame. This lens benefits from a newly developed linear AF motor which moves the lens elements directly without the need for gears or the drive of other mechanical parts. This system ensures accurate and quiet autofocusing, making the lens suitable for video recording as well as still photos. The lens features a rounded 7 blade diaphragm creating an attractive blur to the out of focus areas of the image. This Sigma 19mm F2.8 EX DN has a minimum focusing distance of 20cm/7.9in and a maximum magnification ratio of 1:7.4.

Reviews

The lens was tested with an Olympus E-M5 camera, and Kudos to Jordan for not stripping the EXIF information from the images.

"The Sigma 19mm is a lens that frankly, I shouldn’t like. I’ve been using pretty much nothing but high end lenses for the past 6 years, and generally a budget lens like this wouldn’t even ping my radar. Then there’s that somewhat odd focal length, it’s relatively slow aperture and unremarkable size . But the fact of the matter is, I do like this lens. Sigma managed to make an affordable lens that is well built with a fast and silent autofocus motor. They then made it

Post date: 18/01/2013 - 00:00

"For the modest financial outlay, the new Sigma 19mm f/2.8 EX DN lens is definitely worth considering, especially for Sony E-Mount users looking for an affordable wide-angle lens. It's less attractive for Micro Four Thirds owners, though, with smaller rivals from Panasonic and Olympus available that deliver better image quality, although the Sigma offering undercuts them all in terms of value."

Post date: 27/04/2012 - 00:00

Specifications

Initial Price: 
$280
Release Date: 
01/2012
DXO Mark Score
Distortion: 
0.00%
Vignetting: 
0.0 EV
Specifications
Lens type: 
Fixed Focal Length
Lens Mount: 
Micro Four Thirds Mount
Sony E mount
AF Motor type: 
linear AF motor
Optical characteristics
Focal Length: 
19mm
Max Magnification: 
0.13x
Lens construction: 
8 Elements in 6 Groups
Diaphragm Blades: 
7 aperture blades circular opening
Maximum Aperture: 
f/2.8
Minimum Aperture: 
f/22
Minimum Focusing Distance: 
20.00cm
Stabilization system : 
No
Physical characteristics
Diameter: 
60.0mm
Length: 
45.0mm
Weight: 
140g
Body material: 
Plastic with metal mount
Weather sealing: 
No
Filter Diameter: 
46 mm

Compatible Cameras

A notice Our vast database is currently being re-constructed. Estimated finishing date is sometime in June/July 2012. Bookmark us and check back again for the grand opening of the ultimate Lens database. The Estiasis.com team

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Olympus OM-D / E-M5 front view
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Front View
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