• Medium format 1,350.0mm2
  • 37.5 megapixels
  • ISO 80 - 1250
  • APS-C 372.1mm2
  • 16.3 megapixels
  • ISO 100 - 12,800

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Differences

Leica S2 advantages over Pentax K-5

  • Larger sensor
    Medium format vs APS-C
    More sensor area. Bigger is (generally) better.
  • Bigger pixels
    ~ 6.00 vs 4.81 microns
    Better low-light and dynamic range (all else equal)
  • More viewfinder magnification
    1.08x vs 0.61x
    Get a bigger view of the scene through the eye-level viewfinder
  • More pixels
    37.5 vs 16.3 megapixels
    Higher resolution photos
  • Dual card slots
    Yes vs No
    Gives you more storage flexibility
  • Lacks anti-aliasing filter
    No Filter vs Filter
    Enjoy sharper photos

Pentax K-5 advantages over Leica S2

  • Lens selection
    Excellent vs Limited
    Better lens selection gives you more options
  • In-Camera Image Stabilization
    Yes vs No
    Reduces the effects of camera shake at slower shutter speeds
  • Internal flash
    Internal flash vs None
    Useful in a pinch for fill flash
  • External Mic Jack
    Jack vs No jack
    Improved sound fidelity when shooting video
  • More cross-type AF points
    9 vs 1
    Cross-type AF points improve autofocus performance
  • More dots on screen
    922k vs 460k dots
    Can mean greater resolution or a brighter screen
  • Shoots 1080p video
    Yes vs No
    You'll want this if you shoot video
  • More AF points
    11 vs 1
    More AF points improve autofocus
  • Has anti-aliasing filter
    Filter vs No Filter
    Reduces unsightly moiré in photos
  • Faster shutter
    1/8000 vs 1/4000 sec
    Shoot wide open in bright light
  • Higher extended ISO
    51200 vs 1250 ISO
    Higher extended ISO can give more low-light flexibility

Similarities

Common Strengths

  • Eye-level viewfinder
    Both provide
    You'll be able to frame photos even when the sun is out
  • Top deck display
    Both provide
    Check settings with a screen on top of the camera
  • Pentaprism viewfinder
    Both provide
    Much better viewfinder picture fidelity
  • 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
  • Focus peaking
    Neither provide
    Your camera will highlight what's in focus
  • Touchscreen
    Neither provide
    Interact with your camera just like your smartphone
  • In-camera panoramas
    Neither provide
    Stitches multiple shots into a panoramic photo
  • Tiltable Screen
    Neither provide
    Tilt the screen for shooting flexbility
  • Built-in Wi-Fi
    Neither provide
    Share your photos wirelessly
  • 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
  • Headphone jack
    Neither provide
    Monitor audio recording while you shoot video
  • Slow-motion videos
    Neither provide
    Shoot slow-motion videos

User reviews

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Buy the Leica S2
Leica S2

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Buy the Pentax K-5
Body Only
  • Body Only
  • Kit with 18-55mm Lens
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Review Excerpt

  • Excellent high ISO performance, one of the best APS-C sensors yet; 6.5 fps burst mode has very good buffer depths; Weather, dust, and cold resistant; In-body Shake Reduction corrects not only horizontal / vertical, but also rotational motion.

  • Default saturation and contrast a bit high; Auto white balance too warm in tungsten light; Fewer AF points than main competitors; Only a single card slot, and no UHS-I card support (slow buffer clearing).

  • Read our Pentax K-5 Full Review

The Competition

Compared to Pentax 645D

Leica S2
Pentax 645D
  • $22995
  • Medium format
  • Thinner
  • More viewfinder magnification
  • $3599
  • Medium format
  • Less expensive
  • More cross-type AF points

Compare Leica S2 vs Pentax 645D

Pentax K-5
Pentax 645D
  • $800
  • APS-C
  • Lens selection
  • In-Camera Image Stabilization
  • $3599
  • Medium format
  • Larger sensor
  • Bigger pixels

Compare Pentax K-5 vs Pentax 645D

Compared to Canon T3i

Leica S2
Canon T3i
  • $22995
  • Medium format
  • Larger sensor
  • Bigger pixels
  • $549
  • APS-C
  • Less expensive
  • Tilt-swivel screen

Compare Leica S2 vs Canon T3i

Pentax K-5
Canon T3i
  • $800
  • APS-C
  • Larger sensor
  • In-Camera Image Stabilization
  • $549
  • APS-C
  • Tilt-swivel screen
  • More telephoto lens reach

Compare Pentax K-5 vs Canon T3i

Compared to Nikon D5100

Leica S2
Nikon D5100
  • $22995
  • Medium format
  • Larger sensor
  • Bigger pixels
  • $650
  • APS-C
  • Less expensive
  • Tilt-swivel screen

Compare Leica S2 vs Nikon D5100

Pentax K-5
Nikon D5100
  • $800
  • APS-C
  • In-Camera Image Stabilization
  • Top deck display
  • $650
  • APS-C
  • Tilt-swivel screen
  • Shoots 24p video

Compare Pentax K-5 vs Nikon D5100

Compared to Leica S (Typ 006)

Leica S2
Leica S (Typ 006)
  • $22995
  • Medium format
  • $10535
  • Medium format
  • More dots on screen

Compare Leica S2 vs Leica S (Typ 006)

Pentax K-5
Leica S (Typ 006)
  • $800
  • APS-C
  • Lens selection
  • In-Camera Image Stabilization
  • $10535
  • Medium format
  • Larger sensor
  • Bigger pixels

Compare Pentax K-5 vs Leica S (Typ 006)

Compared to Leica S-E (Typ 006)

Leica S2
Leica S-E (Typ 006)
  • $22995
  • Medium format
  • $16900
  • Medium format
  • Less expensive
  • Built-in GPS

Compare Leica S2 vs Leica S-E (Typ 006)

Pentax K-5
Leica S-E (Typ 006)
  • $800
  • APS-C
  • Lens selection
  • In-Camera Image Stabilization
  • $16900
  • Medium format
  • Larger sensor
  • Bigger pixels

Compare Pentax K-5 vs Leica S-E (Typ 006)

Compare Other Cameras?