61points

Pentax smc DA 50mm F/1.8

90points

Sigma 50mm F1.4 DG HSM Art

Pentax smc DA 50mm F/1.8
Sigma 50mm F1.4 DG HSM Art
Comparison winner
vs
vs

23 facts in comparison

Pentax smc DA 50mm F/1.8 vs Sigma 50mm F1.4 DG HSM Art

Pentax smc DA 50mm F/1.8
Sigma 50mm F1.4 DG HSM Art
61
points
Pentax smc DA 50mm F/1.8
90
points
Sigma 50mm F1.4 DG HSM Art

Why is Pentax smc DA 50mm F/1.8 better than Sigma 50mm F1.4 DG HSM Art?

  • 693g lighter
    122gvs815g
  • 6f smaller aperture at maximum focal length
    ?

    22fvs16f
  • 6f smaller aperture at minimum focal length
    ?

    22fvs16f
  • 15.3° narrower minimum angle of view
    ?

    31.5°vs46.8°

Why is Sigma 50mm F1.4 DG HSM Art better than Pentax smc DA 50mm F/1.8?

  • 22.22% wider aperture at minimum focal length
    ?

    f/1.40 vs1.8f
  • 0.4f wider aperture at maximum focal length
    ?

    1.4fvs1.8f
  • Has focus motor
    ?
  • Has a silent focus motor built into the lens
    ?
  • Has a metal mount
    ?
  • 0.05m shorter minimum focus distance
    ?

    0.4mvs0.45m
  • Has rounded aperture blades
    ?
  • 2 more aperture blades
    ?

    9vs7

Price comparison

Pentax smc DA 50mm F/1.8

Buy used:

$69.93

ProductStorePrice
Pentax smc DA 50mm F/1.8 AmazonRokinon 85M-P 85mm f/1.4 Aspherical Lens...Rokinon 85M-P 85mm f/1.4 Aspherical Lens for Pentax (Black)
Amazon logo
$249.00
Pentax smc DA 50mm F/1.8 AmazonPentax HD DA 55-300mm f/4.5-6.3 ED PLM W...Pentax HD DA 55-300mm f/4.5-6.3 ED PLM WR RE Lens
Amazon logo
$366.95
Pentax smc DA 50mm F/1.8 AmazonPENTAX DA 18-55mm f/3.5-5.6 AL Weather R...PENTAX DA 18-55mm f/3.5-5.6 AL Weather Resistant Lens for Pentax Digital SLR Camera (Discontinued by Manufacturer)
Amazon logo
$183.94
Pentax smc DA 50mm F/1.8 AmazonSigma 17-50mm f/2.8 Ex Dc Hsm Lens for P...Sigma 17-50mm f/2.8 Ex Dc Hsm Lens for Pentax DSLR Camera
Amazon logo
$340.71
Pentax smc DA 50mm F/1.8 AmazonPentax D FA F2.8ED SDM WR 15-30mm f/2.8 ...Pentax D FA F2.8ED SDM WR 15-30mm f/2.8 Ultra-Wide Angle Zoom Lens for Pentax K
Amazon logo
$1,296.00
Pentax smc DA 50mm F/1.8 AmazonPentax HD D FA 150-450mm f4.5-5.6ED DC A...Pentax HD D FA 150-450mm f4.5-5.6ED DC AW Super-Telephoto Lens for Pentax KAF Cameras
Amazon logo
$1,839.00
Pentax smc DA 50mm F/1.8 AmazonPentax DA 40mm f/2.8 XS Lens
Amazon logo
$149.00

General info

1.Has a metal mount
?

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

Pentax smc DA 50mm F/1.8
Sigma 50mm F1.4 DG HSM Art
2.minimum focal length
?

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

Canon EF 35mm F/2 IS USM

0.24mm

50mm

50mm

3.weight
?

Best

Canon EF 400mm F/4 DO IS II USM

2.1g

122g

815g

4.maximum focal length
?

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

Sigma 300-800mm F5.6 EX DG APO HSM

800mm

50mm

50mm

5.Includes lens hood
?

It comes with a lens hood so that you don’t have to buy it separately. These are used to block strong light sources, such as the sun, from the lens to prevent glare and lens flare.

Pentax smc DA 50mm F/1.8
Sigma 50mm F1.4 DG HSM Art
6.Front element doesn't rotate
?

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.

Pentax smc DA 50mm F/1.8
Sigma 50mm F1.4 DG HSM Art

Optics

1.optical zoom
?

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

Tamron 18-400mm f/3.5-6.3 Di II VC HLD

22.2x

1x

1x

2.maximum angle of view
?

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

Leica APO-Summicron-SL 75mm f/2 ASPH

318°

31.5°

46.8°

3.magnification
?

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

0.15x

0.18x

4.minimum angle of view
?

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

Tamron SP 150-600mm F/5-6.3 Di VC USD

31.5°

46.8°

Aperture

1.wide aperture (main camera)
?

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. Show more

Best

Nikon Nikkor Z 58mm f/0.95 S Noct

f/0.95

f/1.80

f/1.40

2.widest aperture at maximum focal length
?

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

Nikon Nikkor Z 58mm f/0.95 S Noct

0.95f

1.8f

1.4f

3.Has rounded aperture blades
?

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.

Pentax smc DA 50mm F/1.8
Sigma 50mm F1.4 DG HSM Art
4.aperture blades
?

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

Leica Thambar-M 90mm f/2.2

20

7

9

5.smallest aperture at maximum focal length
?

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

Tamron 100-400mm f/4.5-6.3 Di VC USD

45f

22f

16f

6.smallest aperture at minimum focal length
?

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

Canon TS-E 135mm f/4L Macro

45f

22f

16f

Focus

1.Can focus to infinity
?

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.

Pentax smc DA 50mm F/1.8
Sigma 50mm F1.4 DG HSM Art
2.Has focus motor
?

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

Pentax smc DA 50mm F/1.8
Sigma 50mm F1.4 DG HSM Art
3.minimum focus distance
?

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

Lensbaby Circular Fisheye

0.01m

0.45m

0.4m

4.has a silent focus motor built into the lens
?

Lenses with built-in focus motor focus faster and more quietly than lenses without a focus motor which rely on the camera's body focus motor.

Pentax smc DA 50mm F/1.8
Sigma 50mm F1.4 DG HSM Art
5.Has full-time manual focus
?

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.

Pentax smc DA 50mm F/1.8
Sigma 50mm F1.4 DG HSM Art

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