• APS-C 366.6mm2
  • 20.1 megapixels
  • ISO 100 - 51,200
  • APS-C 332.3mm2
  • 24.2 megapixels
  • ISO 100 - 12,800

Buy From

Differences

Pentax K-S1 advantages over Canon T6i

  • Focus peaking
    Peaker vs Non-peaker
    Your camera will highlight what's in focus
  • Larger sensor
    APS-C vs APS-C
    More sensor area. Bigger is (generally) better.
  • In-Camera Image Stabilization
    Yes vs No
    Reduces the effects of camera shake at slower shutter speeds
  • Bigger pixels
    ~ 4.29 vs 3.72 microns
    Better low-light and dynamic range (all else equal)
  • Higher effective ISO
    1,061 vs 919 iso
    Take photos in low light with less noise
  • Pentaprism viewfinder
    Pentaprism vs Pentamirror
    Much better viewfinder picture fidelity
  • More viewfinder magnification
    0.63x vs 0.51x
    Get a bigger view of the scene through the eye-level viewfinder
  • Optional anti-aliasing filter
    Optional vs Fixed
    Lets you choose sharper photos or reduced moiré
  • Faster JPEG shooting
    5.4 fps vs 4.8 fps
    Faster JPEG shooting (burst mode)
  • Faster shutter
    1/6000 vs 1/4000 sec
    Shoot wide open in bright light
  • Higher extended ISO
    51200 vs 25600 ISO
    Higher extended ISO can give more low-light flexibility

Canon T6i advantages over Pentax K-S1

  • Tilt-swivel screen
    Tilt-swivel vs none
    Tilt and swivel the screen for maximum shooting flexibility
  • Touchscreen
    Touch vs No touch
    Interact with your camera just like your smartphone
  • Built-in Wi-Fi
    Wi-Fi vs None
    Share your photos wirelessly
  • NFC
    Yes vs No
    Simplifies pairing your camera with supported phones
  • On-sensor phase detect
    Yes vs No
    Usually improves live view and video AF performance
  • External Mic Jack
    Jack vs No jack
    Improved sound fidelity when shooting video
  • More cross-type AF points
    19 vs 9
    Cross-type AF points improve autofocus performance
  • More pixels
    24.2 vs 20.1 megapixels
    Higher resolution photos
  • More AF points
    19 vs 11
    More AF points improve autofocus
  • Bigger JPEG buffer
    Unlimited vs 20 shots
    Take more JPEG shots before waiting (burst mode)

Similarities

Common Strengths

  • Eye-level viewfinder
    Both provide
    You'll be able to frame photos even when the sun is out
  • Internal flash
    Both provide
    Useful in a pinch for fill flash
  • HDMI out
    Both provide
    Use HDMI output to monitor or review video
  • Hot shoe
    Both provide
    Off-camera flashes open new possibilities
  • Bulb shutter
    Both provide
    Hold the shutter open manually for long exposures

Common Weaknesses

  • In-camera panoramas
    Neither provide
    Stitches multiple shots into a panoramic photo
  • Built-in Bluetooth
    Neither provide
    Always-on wireless connectivity
  • Built-in GPS
    Neither provide
    Geotag your photos
  • 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 Canon T6i

Review Excerpt

  • Highest resolution Canon APS-C camera yet; Improved dynamic range over T5i; Good high ISO performance for its class; Very fast autofocus; Built-in Wi-Fi with NFC; Touchscreen tilt/swivel LCD.

  • Shallow buffer depth with RAW files; Below average battery life; No Servo AF in Live View; No 60p video frame rate.

The Competition

Compared to Nikon D3400

Pentax K-S1
Nikon D3400
  • $502
  • APS-C
  • Focus peaking
  • In-Camera Image Stabilization
  • $497
  • APS-C
  • Built-in Bluetooth
  • Higher effective ISO
Canon T6i
Nikon D3400
  • $699
  • APS-C
  • Tilt-swivel screen
  • Touchscreen
  • $497
  • APS-C
  • Less expensive
  • Larger sensor

Compared to Sony A58

Pentax K-S1
Sony A58
  • $502
  • APS-C
  • Lens selection
  • Higher effective ISO
  • $598
  • APS-C
  • Less expensive
  • In-camera panoramas
Canon T6i
Sony A58
  • $699
  • APS-C
  • Lens selection
  • Tilt-swivel screen
  • $598
  • APS-C
  • Focus peaking
  • Larger sensor

Compared to Pentax K-500

Pentax K-S1
Pentax K-500
  • $502
  • APS-C
  • HDMI out
  • More pixels
  • $597
  • APS-C
  • Less expensive
  • Longer stills battery life
Canon T6i
Pentax K-500
  • $699
  • APS-C
  • Tilt-swivel screen
  • Touchscreen
  • $597
  • APS-C
  • Focus peaking
  • Larger sensor

Compared to Pentax K-S2

Pentax K-S1
Pentax K-S2
  • $502
  • APS-C
  • Higher-res screen
  • $499
  • APS-C
  • Tilt-swivel screen
  • Built-in Wi-Fi
Canon T6i
Pentax K-S2
  • $699
  • APS-C
  • Touchscreen
  • On-sensor phase detect
  • $499
  • APS-C
  • Focus peaking
  • Larger sensor

Compared to Pentax K-3 II

Pentax K-S1
Pentax K-3 II
  • $502
  • APS-C
  • Internal flash
  • $830
  • APS-C
  • High resolution composite
  • Built-in GPS
Canon T6i
Pentax K-3 II
  • $699
  • APS-C
  • Less expensive
  • Tilt-swivel screen
  • $830
  • APS-C
  • Focus peaking
  • Larger sensor
Compare Other Cameras?