Sony A99 vs Sony A5100

Sony A99 advantages over Sony A5100

• Larger sensor
  35mm vs APS-C
  More sensor area. Bigger is (generally) better.
• Tilt-swivel screen
  Tilt-swivel vs tilt-only
  Tilt and swivel the screen for maximum shooting flexibility
• 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
  ~ 5.97 vs 3.92 microns
  Better low-light and dynamic range (all else equal)
• Fast startup
  ~0.70 vs 2.0 sec
  Faster startup lets you catch the moment
• 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.

  A99 test data on DxO Mark A5100 test data on DxO Mark
  1,555 vs 1,347 iso
  Take photos in low light with less noise
• Built-in GPS
  GPS vs None
  Geotag your photos
• Longer stills battery life
  More info

  Longer stills battery life

  Cameras with longer battery life can take more photos before exhausting their batteries.

  Special note: The measurement standard for battery life stipulates that if a camera has an internal flash, it must be used for 50% of photos taken. For this reason, comparisons of one camera with an internal flash to another without will not be comparable

  500 vs 400 shots
  Capture more photos
• Top deck display
  Yes vs No
  Check settings with a screen on top of the camera
• External Mic Jack
  Jack vs No jack
  Improved sound fidelity when shooting video
• Higher max flash sync
  1/250 vs 1/160 sec
  Reduce the effect of ambient light in flash shots
• 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
• Less shutter lag
  0.13 vs 0.23 sec
  Focus and take a photo quickly (wide angle)
• Dual card slots
  Yes vs No
  Gives you more storage flexibility
• Headphone jack
  Yes vs No
  Monitor audio recording while you shoot video
• Faster shutter
  1/8000 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