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Sigma 19mm F2.8 DN A

Sigma 19mm F2.8 DN A
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Sigma 19mm F2.8 DN A review: specs and price

Sigma 19mm F2.8 DN A
Sigma 19mm F2.8 DN A

Why is Sigma 19mm F2.8 DN A better than the average?

  • Widest aperture at maximum focal length
    2.8fvs3.81f
  • Smallest aperture at maximum focal length
    22fvs21.76f
  • Widest aperture
    f/2.8 vsf/3.0072916666666667
  • Minimum focus distance
    0.2mvs0.39m
  • Minimum focal length
    19mmvs28.18mm
  • Smallest aperture at minimum focal length
    22fvs21.47f
  • Weight
    160gvs293.48g

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General info

1.Is a wide angle lens
Sigma 19mm F2.8 DN A

A wide angle lens is great for capturing larger areas of a scene, such as when doing architectural or landscape photography.

2.has or is a prime lens
Sigma 19mm F2.8 DN A

A prime lens has a fixed focal length. In general, these are sharper, with a wider aperture.

3.Front element doesn't rotate
Sigma 19mm F2.8 DN A

The front element doesn’t rotate. This is important if you use filters, as some such as polarising or gradient filters have to be orientated a certain way.

4.Has a metal mount
Sigma 19mm F2.8 DN A

A metal mount is generally superior to a plastic mount as it is more durable.

5.maximum focal length

19mm

A longer maximum focal length allows you to focus in on a small part of a scene, and offers a narrower angle of view than shorter focal lengths.

Best

Olympus M.Zuiko ED 75-300mm F4.8-6.7 II

300mm

6.minimum focal length

19mm

A shorter minimum focal length allows you to get more of the scene in the photo, and offers a wider angle of view than longer focal lengths.

Best

Olympus M.Zuiko ED 14-42mm F3.5-5.6 EZ

0.25mm

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Optics

1.magnification

0.14x

A true macro lens has a magnification of 1:1. This means that the image produced is a life-size representation of the subject being photographed.

Best

Leica Vario-Elmarit-SL 24-90mm F2.8-4 ASPH

14x

2.minimum angle of view

59.3°

At the longest end of the lens you get the narrowest angle of view. This allows you to fit a small portion of the scene into the photograph, such as when you are zooming in on a subject (based on APS-C format).

Best

Olympus M.Zuiko ED 75-300mm F4.8-6.7 II

4.1°

3.maximum angle of view

59.3°

At the shorter end of the lens you get the widest angle of view. This allows you to fit more of the scene into the photograph (based on APS-C format).

Best

Samyang 8mm F/2.8 UMC Fish-eye

180°

4.optical zoom

1x

The zoom range is the ratio between the longest and shortest focal lengths. A higher zoom range means that the lens is more versatile.

Best

Samsung NX 18-200mm F3.5-6.3 ED OIS

11x

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Aperture

1.widest aperture at maximum focal length

2.8f

With a wider aperture the sensor can capture more light, helping to avoid blur by enabling a faster shutter speed. It also provides a shallow depth of field, allowing you to blur the background to focus attention on the subject.

Best

Leica Summilux-TL 35 mm f/1.4 ASPH

1.4f

2.smallest aperture at maximum focal length

22f

A smaller aperture reduces the amount of light reaching the sensor. This is important in bright conditions where a wider aperture could result in your image being overexposed. Another advantage is that with a smaller aperture you get a greater depth of field, and can keep all of the image in focus.

Best

Sony E PZ 18-200mm F3.5-6.3 OSS

40f

3.widest aperture

f/2.8

With a wider aperture the sensor can capture more light, helping to avoid blur by enabling a faster shutter speed. It also provides a shallow depth of field, allowing you to blur the background to focus attention on the subject.

Best

Leica Summilux-TL 35 mm f/1.4 ASPH

f/1.4

4.aperture blades

7

The aperture controls how much light gets through to the camera’s sensor. More blades is often an indicator of a better quality lens. It also allows you to achieve much nicer looking bokeh when blurring out your background, whereas a lens with less blades will often produce harsher, more polygonal bokeh.

Best

Sony FE 16-35mm f/2.8 GM

11

5.Has rounded aperture blades
Sigma 19mm F2.8 DN A

Similar to the number of aperture blades, rounded blades affect the way the light gets through to the sensor. Rounded blades, often only found on more expensive lenses, improve the appearance of the out-of-focus areas. This allows you to attain better, softer looking bokeh in your photos.

6.smallest aperture at minimum focal length

22f

A smaller aperture reduces the amount of light reaching the sensor. This is important in bright conditions where a wider aperture could result in your image being overexposed. Another advantage is that with a smaller aperture you get a greater depth of field, and can keep all of the image in focus.

Best

Sony E 18-200mm F3.5-5.6 OSS LE

40f

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Focus

1.Has full-time manual focus
Sigma 19mm F2.8 DN A

With full-time manual focus, you can move the focus ring whilst it is in AF (autofocus) mode. This means that you can make manual adjustments once the AF has finished, without changing to manual mode.

2.Can focus to infinity
Sigma 19mm F2.8 DN A

Many lenses allow you to focus to infinity. This is essential when you wish to take photos including far off objects, such as when shooting landscapes, in order to make sure everything is sharp and in focus.

3.minimum focus distance

0.2m

This is the closest distance that the lens can focus. A shorter minimum focus distance allows you to get closer to your subject, and is particularly important when doing macro photography.

Best

Samsung NX 10mm F3.5 Fisheye

0.09m

4.Has focus motor
Sigma 19mm F2.8 DN A

Lenses with a built-in focus motor can autofocus even if the camera does not have its own focus motor.

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