• APS-C 372.1mm2
  • 16.3 megapixels
  • ISO 100 - 51,200
  • APS-C 366.6mm2
  • 24.3 megapixels
  • ISO 100 - 25,600

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Differences

Pentax K-50 advantages over Sony A5100

  • Lens selection
    Excellent vs Good
    Better lens selection gives you more options
  • Less expensive
    $149 vs $448
    Save money for lenses or accessories
  • Eye-level viewfinder
    Eye-level vs Rear display only
    You'll be able to frame photos even when the sun is out
  • In-Camera Image Stabilization
    Yes vs No
    Reduces the effects of camera shake at slower shutter speeds
  • Bigger pixels
    ~ 4.81 vs 3.92 microns
    Better low-light and dynamic range (all else equal)
  • Longer stills battery life
    More info 480 vs 400 shots
    Capture more photos
  • Higher-res screen
    307k vs 230k pixels
    More detail on the screen lets you judge focus and composition
  • Hot shoe
    Hot shoe vs None
    Off-camera flashes open new possibilities
  • 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

Sony A5100 advantages over Pentax K-50

  • Touchscreen
    Touch vs No touch
    Interact with your camera just like your smartphone
  • In-camera panoramas
    Yes vs No
    Stitches multiple shots into a panoramic photo
  • Tiltable Screen
    Tiltable vs Fixed
    Tilt the screen for shooting flexbility
  • Built-in Wi-Fi
    Wi-Fi vs None
    Share your photos wirelessly
  • NFC
    Yes vs No
    Simplifies pairing your camera with supported phones
  • Higher effective ISO
    1,347 vs 1,120 iso
    Take photos in low light with less noise
  • On-sensor phase detect
    Yes vs No
    Usually improves live view and video AF performance
  • Thinner
    35 mm vs 71 mm
    Thinner
  • HDMI out
    HDMI out vs None
    Use HDMI output to monitor or review video
  • Lighter weight
    399g vs 904g
    Lighter weight
  • More pixels
    24.3 vs 16.3 megapixels
    Higher resolution photos
  • Wider angle kit lens
    24 mm vs 27 mm
    Capture more of the scene with the included lens
  • Bigger JPEG buffer
    67 vs 30 shots
    Take more JPEG shots before waiting (burst mode)

Similarities

Common Strengths

  • Focus peaking
    Both provide
    Your camera will highlight what's in focus
  • Internal flash
    Both provide
    Useful in a pinch for fill flash
  • 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
  • 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
  • External Mic Jack
    Neither provide
    Improved sound fidelity when shooting video
  • 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-50

Your purchases support this site

Buy the Sony A5100

Review Excerpt

  • Very small and comfortable form factor; Very good image quality for its class; New dual video record function; Quick autofocus and good dynamic range.

  • Lacks an EVF and external mode dial; No hot shoe; JPEG processing at higher ISOs not as good as some competing mid-level models.

The Competition

Compared to Sony A57

Pentax K-50
Sony A57
  • $306
  • APS-C
  • Lens selection
  • Higher effective ISO
  • $800
  • APS-C
  • In-camera panoramas
  • Tiltable Screen
Sony A5100
Sony A57
  • $448
  • APS-C
  • Touchscreen
  • Built-in Wi-Fi
  • $800
  • APS-C
  • Eye-level viewfinder
  • In-Camera Image Stabilization

Compared to Sony A37

Pentax K-50
Sony A37
  • $306
  • APS-C
  • Lens selection
  • Higher effective ISO
  • $600
  • APS-C
  • In-camera panoramas
  • Tiltable Screen
Sony A5100
Sony A37
  • $448
  • APS-C
  • Touchscreen
  • Built-in Wi-Fi
  • $600
  • APS-C
  • Eye-level viewfinder
  • In-Camera Image Stabilization

Compared to Samsung NX1100

Pentax K-50
Samsung NX1100
  • $306
  • APS-C
  • Lens selection
  • Focus peaking
  • $450
  • APS-C
  • Built-in Wi-Fi
  • Thinner
Sony A5100
Samsung NX1100
  • $448
  • APS-C
  • Lens selection
  • Focus peaking
  • $450
  • APS-C
  • Higher-res screen
  • Hot shoe

Compared to Pentax K-500

Pentax K-50
Pentax K-500
  • $306
  • APS-C
  • Less expensive
  • $597
  • APS-C
  • Longer stills battery life
Sony A5100
Pentax K-500
  • $448
  • APS-C
  • Less expensive
  • Touchscreen
  • $597
  • APS-C
  • Lens selection
  • Eye-level viewfinder

Compared to Sony A5000

Pentax K-50
Sony A5000
  • $306
  • APS-C
  • Lens selection
  • Less expensive
  • $298
  • APS-C
  • In-camera panoramas
  • Tiltable Screen
Sony A5100
Sony A5000
  • $448
  • APS-C
  • Touchscreen
  • Higher effective ISO
  • $298
  • APS-C
  • Less expensive
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