• APS-C 366.6mm2
  • 20.1 megapixels
  • ISO 100 - 51,200
  • 35mm 864.0mm2
  • 24.2 megapixels
  • ISO 50 - 50,000

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Differences

Pentax K-S1 advantages over Leica SL (Typ 601)

  • In-Camera Image Stabilization
    Yes vs No
    Reduces the effects of camera shake at slower shutter speeds
  • Longer stills battery life
    More info 480 vs 400 shots
    Capture more photos
  • Internal flash
    Internal flash vs None
    Useful in a pinch for fill flash
  • Optional anti-aliasing filter
    Optional vs None
    Lets you choose sharper photos or reduced moiré

Leica SL (Typ 601) advantages over Pentax K-S1

  • Larger sensor
    35mm vs APS-C
    More sensor area. Bigger is (generally) better.
  • Bigger pixels
    ~ 6.00 vs 4.29 microns
    Better low-light and dynamic range (all else equal)
  • Shoot 4K video
    4K (DCI) vs 1080p
    Make sure you have a fast computer
  • 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
  • Higher effective ISO
    1,821 vs 1,061 iso
    Take photos in low light with less noise
  • Built-in GPS
    GPS vs None
    Geotag your photos
  • Top deck display
    Yes vs No
    Check settings with a screen on top of the camera
  • Thinner
    39 mm vs 69 mm
    Thinner
  • External Mic Jack
    Jack vs No jack
    Improved sound fidelity when shooting video
  • More viewfinder magnification
    0.80x vs 0.63x
    Get a bigger view of the scene through the eye-level viewfinder
  • More pixels
    24.2 vs 20.1 megapixels
    Higher resolution photos
  • Dual card slots
    Yes vs No
    Gives you more storage flexibility
  • Headphone jack
    Yes vs No
    Monitor audio recording while you shoot video
  • Longer exposure
    60 vs 30 sec
    Long exposures for night shots
  • Faster JPEG shooting
    10.6 fps vs 5.4 fps
    Faster JPEG shooting (burst mode)
  • Bigger JPEG buffer
    Unlimited vs 20 shots
    Take more JPEG shots before waiting (burst mode)
  • Slow-motion videos
    Yes vs No
    Shoot slow-motion videos
  • Faster shutter
    1/16000 vs 1/6000 sec
    Shoot wide open in bright light

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
  • 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

  • Tilt-swivel screen
    Neither provide
    Tilt and swivel the screen for maximum shooting flexibility
  • In-camera panoramas
    Neither provide
    Stitches multiple shots into a panoramic photo
  • Tiltable Screen
    Neither provide
    Tilt the screen for shooting flexbility
  • NFC
    Neither provide
    Simplifies pairing your camera with supported phones
  • Built-in Bluetooth
    Neither provide
    Always-on wireless connectivity
  • On-sensor phase detect
    Neither provide
    Usually improves live view and video AF performance

User reviews

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Your purchases support this site

Buy the Pentax K-S1

Review Excerpt

  • Superb build quality; Amazing EVF; Great image quality from RAW files; Good high ISO performance; Very good dynamic range; Very low shutter lag; Fast AF on stationary objects; Class-leading ~11 fps burst mode; 4K DCI and UHD video; Full HD up to 120p. Built-in Wi-Fi and GPS; Dual card slots; Decent battery life for its class.

  • Big for a full-frame mirrorless camera; Very slow buffer clearing; Contrast-detect AF system struggles with moving subjects; In-camera JPEGs are muted and dull; Very limited native lens selection (but supports many other Leica lenses via adapters); Expensive.

The Competition

Compared to Nikon D3300

Pentax K-S1
Nikon D3300
  • $399
  • APS-C
  • Focus peaking
  • In-Camera Image Stabilization
  • $427
  • APS-C
  • In-camera panoramas
  • Higher effective ISO
Leica SL (Typ 601)
Nikon D3300
  • $5995
  • 35mm
  • Focus peaking
  • Larger sensor
  • $427
  • APS-C
  • Less expensive
  • In-camera panoramas

Compared to Canon T5

Pentax K-S1
Canon T5
  • $399
  • APS-C
  • Focus peaking
  • Larger sensor
  • $399
  • APS-C
Leica SL (Typ 601)
Canon T5
  • $5995
  • 35mm
  • Focus peaking
  • Larger sensor
  • $399
  • APS-C
  • Less expensive
  • Fast startup

Compared to Pentax K-S2

Pentax K-S1
Pentax K-S2
  • $399
  • APS-C
  • Higher-res screen
  • $499
  • APS-C
  • Tilt-swivel screen
  • Built-in Wi-Fi
Leica SL (Typ 601)
Pentax K-S2
  • $5995
  • 35mm
  • Larger sensor
  • Bigger pixels
  • $499
  • APS-C
  • Less expensive
  • Tilt-swivel screen

Compared to Leica M Monochrom (Typ 246)

Pentax K-S1
Leica M Monochrom (Typ 246)
  • $399
  • APS-C
  • Lens selection
  • In-Camera Image Stabilization
  • $7995
  • 35mm
  • Larger sensor
  • Bigger pixels
Leica SL (Typ 601)
Leica M Monochrom (Typ 246)
  • $5995
  • 35mm
  • Less expensive
  • Shoot 4K video
  • $7995
  • 35mm

Compared to Leica M-D (Typ 262)

Pentax K-S1
Leica M-D (Typ 262)
  • $399
  • APS-C
  • Rear display
  • Lens selection
  • $5995
  • 35mm
  • Larger sensor
  • Bigger pixels
Leica SL (Typ 601)
Leica M-D (Typ 262)
  • $5995
  • 35mm
  • Rear display
  • Focus peaking
  • $5995
  • 35mm
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