Pentax K-x vs Sony A7R II

Sony A7R II advantages over Pentax K-x

• Focus peaking
  Peaker vs Non-peaker
  Your camera will highlight what's in focus
• Larger sensor
  35mm vs APS-C
  More sensor area. Bigger is (generally) better.
• Shoot 4K video
  4K (UHD) vs 720p
  Make sure you have a fast computer
• 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
• Better color depth

  Better color depth

  Color depth refers to the number of unique colors that a sensor can faithfully capture. Cameras with better color depth will demonstrate smoother transitions from one color to the next, and avoid "banding" in areas with subtle shading. (Blue skies are an example of where you might see color banding.)

  More color depth is generally better, but you'll struggle to notice a difference between two cameras with less than 1 bit of difference. Color depth above 22 bits is considered excellent.

  Want to learn more? Head over to our full glossary entry on color depth

  Color depth test data courtesy of DxO Mark.

  A7R II test data on DxO Mark K-x test data on DxO Mark
  26.0 vs 22.8 bits
  Capture richer, more accurate colors
• Higher effective ISO

  Higher effective ISO

  Maximum effective ISO is an estimate of the highest sensitivity at which a camera can capture excellent quality photos.

  Cameras with higher effective ISO will be better choices for indoor photography, night shooting, and indoor sports photography, especially if you intend to make large prints.

  You can learn more at our glossary entry.

  Maximum effective ISO test data courtesy of DxO Mark.

  A7R II test data on DxO Mark K-x test data on DxO Mark
  3,434 vs 811 iso
  Take photos in low light with less noise
• More dynamic range

  More dynamic range

  Cameras with more dynamic range allow you to take photos with dramatic differences in highlight and shadow areas while retaining detail in both.

  Think of a brilliant sunset on a rocky beach: Bright sunset in the background, with dark rocks in the foreground. High dynamic range means more of the extremes will be faithfully reproduced.

  Dynamic range test data courtesy of DxO Mark.

  A7R II test data on DxO Mark K-x test data on DxO Mark
  13.9 vs 12.5 evs
  Retain detail in highlight and shadows
• 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
• Newer
  9 years vs 15 years old
  Newer cameras often support more advanced features
• HDMI out
  HDMI out vs None
  Use HDMI output to monitor or review video
• More dots on screen
  1229k 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
• More viewfinder magnification
  0.78x vs 0.57x
  Get a bigger view of the scene through the eye-level viewfinder
• More pixels
  42.4 vs 12.4 megapixels
  Higher resolution photos
• Shoots 60p video
  Yes vs No
  A faster framerate can give you more editing options
• Headphone jack
  Yes vs No
  Monitor audio recording while you shoot video
• Lacks anti-aliasing filter
  No Filter vs Filter
  Enjoy sharper photos
• Faster JPEG shooting
  5.0 fps vs 4.3 fps
  Faster JPEG shooting (burst mode)
• Slow-motion videos
  Yes vs No
  Shoot slow-motion videos
• Higher extended ISO
  102400 vs 12800 ISO
  Higher extended ISO can give more low-light flexibility