Pentax KP vs Sony A57 Compare

Here you can find digital cameras comparison. Pick up with the best rating.

Cameras which are being compared are Amateur DSLR cameras.

KP vs A57 - Side by side

Learn more about compared cameras specifications below.

Pentax KP vs Sony A57 Specs


  • Introduced in January 2017
  • Amateur DSLR
  • Sensor: APS-C
  • 24 megapixel
  • 7 frames/second
  • 100 – 819200 ISO
  • 1920 x 1080 Video
  • Viewfinder: Optical (Penta prism)
  • 76.00mm (3.0″) Monitor, articulated
  • Lens mount KAF2
  • WiFi built-in
  • 131.5 x 101 x 76mm³ (5.2″ x 4.0″ x 3.0″)
  • 643g (20.7 oz.)

All specs: Main page for KP


  • Introduced in March 2012
  • Amateur DSLR
  • Sensor: APS-C
  • 16 megapixel
  • 12 frames/second
  • 100 – 16000 ISO
  • 1920 x 1080 Video
  • Viewfinder: Elektronic
  • 76.00mm (3.0″) Monitor, articulated
  • Lens mount A Mount
  • No WiFi
  • 132 x 97.8 x 80.9mm³ (5.2″ x 3.9″ x 3.2″)
  • 620g (20.0 oz.)

All specs: Main page for A57

KP vs A57 Sensors

On the pictures below the sensor areas of cameras are highlighted.

This infographic highlights the sensor areas of both models compared to other common sensor formats:

Info graphic: KP an A57 sensor comparison

KP vs A57: Viewfinder

KP has an optical viewfinder with penta prism. It has magnification of 0.59x and covers 100% of view field.

A57 has an electronic viewfinder with resolution 1.44 megapixel, it’s magnification is 0.65x.

Viewfinder magnifications of compared cameras. The black area shows a magnification of 1x, relative to native size; in red is a magnification of 0.85x.

KP (0.59x)

A57 (0.65x)

Better choice: Sony A57

Pentax KP VS Sony A57 Other Specs Comparison

Why is Pentax KP a better choice



Wider resolution (5, megapixel)

24.30 16.10
Auto Focus points (4)

27 15
Better sensibility (4)

100 – 819200 ISO 100 – 16000 ISO
External microphone (2)

WiFi (2)

Environmental sealing (2)

Conclusion: Advantages of the KP are the higher resolution, the faster and more accurate auto focus and the larger sensitivity. We also like the connector for an external microphone, the built-in wifi that permits remote shooting and image transfer without the need for a cable connection.

The KP scores 17 points.

Otherwise why to choose Sony A57



Higher speed (4, frames/second)

7 12
Larger lens selection (3)

40 45
Longer battery life (3, photos)

420 550

Conclusion: Advantages of the A57 are that the camera is faster, the larger selection of lenses and that the battery has more stamina.

Yields 10 points for the A57.

Common Specs for both cameras compared



Sensor format

Sensor cleaning

Built-in flash

Image stabilizer

Sensor resolution (MP)

0.92 0.92
Articulated screen

Video resolution

1920 x 1080 1920 x 1080
Similar weight

643g 620g
Similar size

1009cm³ 1044cm³
Pentax KP VS Sony A57 Dimensions

Look at front view of the KP and A57

Top view of cameras

Total scores

Here’s the total score according to comparison above:

Pentax KP

Sony A57


We recommend Pentax KP as better choice.