• APS-C 368.2mm2
  • 14.6 megapixels
  • ISO 100 - 3200
  • 1/2.3 inch 28.1mm2
  • 16.2 megapixels
  • 27.00mm - 810.00mm (35mm eq.)

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Differences

Pentax K20D advantages over Sony HX100V

  • Larger sensor
    APS-C vs 1/2.3 inch
    More sensor area. Bigger is (generally) better.
  • Bigger pixels
    ~ 5.05 vs 1.34 microns
    Better low-light and dynamic range (all else equal)
  • RAW file ability
    Yes vs No
    Gives you more flexibility to develop your photos later
  • Thinner
    70 mm vs 93 mm
    Thinner
  • Hot shoe
    Hot shoe vs None
    Off-camera flashes open new possibilities
  • Bulb shutter
    Bulb vs No bulb
    Hold the shutter open manually for long exposures
  • Bigger JPEG buffer
    38 vs 10 shots
    Take more JPEG shots before waiting (burst mode)
  • Higher extended ISO
    6400 vs 3200 ISO
    Higher extended ISO can give more low-light flexibility

Sony HX100V advantages over Pentax K20D

  • Less expensive
    $450 vs $800 (MSRP)
    Save money for lenses or accessories
  • Tiltable Screen
    Tiltable vs Fixed
    Tilt the screen for shooting flexbility
  • Built-in GPS
    GPS vs None
    Geotag your photos
  • Integrated ND filter
    Yes vs No
    Shoot in daylight with a large aperture or slow shutter
  • HDMI out
    HDMI out vs None
    Use HDMI output to monitor or review video
  • Lighter weight
    577g vs 802g
    Lighter weight
  • More dots on screen
    922k vs 230k dots
    Can mean greater resolution or a brighter screen
  • Shoots 1080p video
    Yes vs No
    You'll want this if you shoot video
  • Shoots 60p video
    Yes vs No
    A faster framerate can give you more editing options
  • Faster JPEG shooting
    10.0 fps vs 2.8 fps
    Faster JPEG shooting (burst mode)

Similarities

Common Strengths

  • Rear display
    Both provide
    Review photos on the back of the camera
  • 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
  • Manual focus
    Both provide
    AF is for the weak. Real photographers focus manually.

Common Weaknesses

  • 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
  • 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
  • On-sensor phase detect
    Neither provide
    Usually improves live view and video AF performance
  • 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

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Review Excerpt

The Competition

Compared to Samsung GX-20

Pentax K20D
Samsung GX-20
  • $800
  • APS-C
  • Less expensive
  • $1400
  • APS-C
  • Higher effective ISO

Compare Pentax K20D vs Samsung GX-20

Sony HX100V
Samsung GX-20
  • $312
  • 1/2.3 inch
  • Less expensive
  • Tiltable Screen
  • $1400
  • APS-C
  • Larger sensor
  • Bigger pixels

Compare Sony HX100V vs Samsung GX-20

Compared to Sony DSLR-A380

Pentax K20D
Sony DSLR-A380
  • $800
  • APS-C
  • Lens selection
  • Fast startup
  • $849
  • APS-C
  • Tiltable Screen
  • HDMI out

Compare Pentax K20D vs Sony DSLR-A380

Sony HX100V
Sony DSLR-A380
  • $312
  • 1/2.3 inch
  • Less expensive
  • Built-in GPS
  • $849
  • APS-C
  • Larger sensor
  • Bigger pixels

Compare Sony HX100V vs Sony DSLR-A380

Compared to Pentax K-7

Pentax K20D
Pentax K-7
  • $800
  • APS-C
  • Less expensive
  • Fast startup
  • $1300
  • APS-C
  • Longer stills battery life
  • HDMI out

Compare Pentax K20D vs Pentax K-7

Sony HX100V
Pentax K-7
  • $312
  • 1/2.3 inch
  • Less expensive
  • Tiltable Screen
  • $1300
  • APS-C
  • Larger sensor
  • Bigger pixels

Compare Sony HX100V vs Pentax K-7

Compared to Panasonic DMC-FZ100

Pentax K20D
Panasonic DMC-FZ100
  • $800
  • APS-C
  • Larger sensor
  • Bigger pixels
  • $500
  • 1/2.33 inch
  • Less expensive
  • Tiltable Screen

Compare Pentax K20D vs Panasonic DMC-FZ100

Sony HX100V
Panasonic DMC-FZ100
  • $312
  • 1/2.3 inch
  • More telephoto lens reach
  • Built-in GPS
  • $500
  • 1/2.33 inch
  • RAW file ability
  • Hot shoe

Compare Sony HX100V vs Panasonic DMC-FZ100

Compared to Sony HX200V

Pentax K20D
Sony HX200V
  • $800
  • APS-C
  • Larger sensor
  • Bigger pixels
  • $349
  • 1/2.3 inch
  • Less expensive
  • Focus peaking

Compare Pentax K20D vs Sony HX200V

Sony HX100V
Sony HX200V
  • $312
  • 1/2.3 inch
  • Built-in GPS
  • $349
  • 1/2.3 inch
  • Focus peaking
  • Higher extended ISO

Compare Sony HX100V vs Sony HX200V

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