• APS-C 366.6mm2
  • 20.1 megapixels
  • ISO 100 - 51,200
  • APS-C 366.6mm2
  • 24.3 megapixels
  • ISO 100 - 819,200

Buy From

Differences

Pentax K-S1 advantages over Pentax KP

  • Longer stills battery life
    More info 480 vs 390 shots
    Capture more photos
  • HDMI out
    HDMI out vs None
    Use HDMI output to monitor or review video

Pentax KP advantages over Pentax K-S1

  • Tiltable Screen
    Tiltable vs Fixed
    Tilt the screen for shooting flexbility
  • High resolution composite
    Yes vs No
    Combine multiple shots to form a super hi-res version
  • Built-in Wi-Fi
    Wi-Fi vs None
    Share your photos wirelessly
  • External Mic Jack
    Jack vs No jack
    Improved sound fidelity when shooting video
  • More cross-type AF points
    25 vs 9
    Cross-type AF points improve autofocus performance
  • Newer
    3 years vs 5 years old
    Newer cameras often support more advanced features
  • More pixels
    24.3 vs 20.1 megapixels
    Higher resolution photos
  • More AF points
    27 vs 11
    More AF points improve autofocus
  • Faster JPEG shooting
    7.1 fps vs 5.4 fps
    Faster JPEG shooting (burst mode)
  • Bigger JPEG buffer
    35 vs 20 shots
    Take more JPEG shots before waiting (burst mode)
  • Faster shutter
    1/24000 vs 1/6000 sec
    Shoot wide open in bright light
  • Higher extended ISO
    819200 vs 51200 ISO
    Higher extended ISO can give more low-light flexibility

Similarities

Common Strengths

  • Focus peaking
    Both provide
    Your camera will highlight what's in focus
  • Eye-level viewfinder
    Both provide
    You'll be able to frame photos even when the sun is out
  • In-Camera Image Stabilization
    Both provide
    Reduces the effects of camera shake at slower shutter speeds
  • Internal flash
    Both provide
    Useful in a pinch for fill flash
  • Pentaprism viewfinder
    Both provide
    Much better viewfinder picture fidelity
  • Hot shoe
    Both provide
    Off-camera flashes open new possibilities
  • Bulb shutter
    Both provide
    Hold the shutter open manually for long exposures

Common Weaknesses

  • Tilt-swivel screen
    Neither provide
    Tilt and swivel the screen for maximum shooting flexibility
  • Touchscreen
    Neither provide
    Interact with your camera just like your smartphone
  • In-camera panoramas
    Neither provide
    Stitches multiple shots into a panoramic photo
  • NFC
    Neither provide
    Simplifies pairing your camera with supported phones
  • Built-in Bluetooth
    Neither provide
    Always-on wireless connectivity
  • Built-in GPS
    Neither provide
    Geotag your photos
  • On-sensor phase detect
    Neither provide
    Usually improves live view and video AF performance
  • Top deck display
    Neither provide
    Check settings with a screen on top of the camera
  • Dual card slots
    Neither provide
    Gives you more storage flexibility
  • Headphone jack
    Neither provide
    Monitor audio recording while you shoot video
  • Slow-motion videos
    Neither provide
    Shoot slow-motion videos

User reviews

Buy From

Your purchases support this site

Buy the Pentax K-S1

Your purchases support this site

Buy the Pentax KP

Review Excerpt

The Competition

Compared to Sony A58

Pentax K-S1
Sony A58
  • $500
  • APS-C
  • Lens selection
  • Higher effective ISO
  • $598
  • APS-C
  • In-camera panoramas
  • Tiltable Screen
Pentax KP
Sony A58
  • $747
  • APS-C
  • Lens selection
  • High resolution composite
  • $598
  • APS-C
  • Less expensive
  • In-camera panoramas

Compared to Nikon D5500

Pentax K-S1
Nikon D5500
  • $500
  • APS-C
  • Focus peaking
  • In-Camera Image Stabilization
  • $461
  • APS-C
  • Tilt-swivel screen
  • Touchscreen
Pentax KP
Nikon D5500
  • $747
  • APS-C
  • Focus peaking
  • In-Camera Image Stabilization
  • $461
  • APS-C
  • Less expensive
  • Tilt-swivel screen

Compared to Pentax K-S2

Pentax K-S1
Pentax K-S2
  • $500
  • APS-C
  • Higher-res screen
  • $499
  • APS-C
  • Tilt-swivel screen
  • Built-in Wi-Fi
Pentax KP
Pentax K-S2
  • $747
  • APS-C
  • High resolution composite
  • More cross-type AF points
  • $499
  • APS-C
  • Less expensive
  • Tilt-swivel screen

Compared to Nikon D5600

Pentax K-S1
Nikon D5600
  • $500
  • APS-C
  • Focus peaking
  • In-Camera Image Stabilization
  • $597
  • APS-C
  • Tilt-swivel screen
  • Touchscreen
Pentax KP
Nikon D5600
  • $747
  • APS-C
  • Focus peaking
  • In-Camera Image Stabilization
  • $597
  • APS-C
  • Less expensive
  • Tilt-swivel screen

Compared to Canon T7i

Pentax K-S1
Canon T7i
  • $500
  • APS-C
  • Focus peaking
  • Larger sensor
  • $599
  • APS-C
  • Tilt-swivel screen
  • Touchscreen
Pentax KP
Canon T7i
  • $747
  • APS-C
  • Focus peaking
  • Larger sensor
  • $599
  • APS-C
  • Less expensive
  • Tilt-swivel screen
Compare Other Cameras?