Panasonic GM1 vs Sony A7S II

Sony A7S II advantages over Panasonic GM1

• Larger sensor
  35mm vs 4/3
  More sensor area. Bigger is (generally) better.
• 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
  ~ 8.40 vs 3.77 microns
  Better low-light and dynamic range (all else equal)
• Shoot 4K video
  4K (UHD) vs 1080p
  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
• NFC
  Yes vs No
  Simplifies pairing your camera with supported phones
• 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.

  A7S II test data on DxO Mark GM1 test data on DxO Mark
  2,993 vs 660 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.

  A7S II test data on DxO Mark GM1 test data on DxO Mark
  13.3 vs 11.7 evs
  Retain detail in highlight and shadows
• 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

  370 vs 230 shots
  Capture more photos
• External Mic Jack
  Jack vs No jack
  Improved sound fidelity when shooting video
• Higher max flash sync
  1/250 vs 1/50 sec
  Reduce the effect of ambient light in flash shots
• Hot shoe
  Hot shoe vs None
  Off-camera flashes open new possibilities
• Headphone jack
  Yes vs No
  Monitor audio recording while you shoot video
• Bulb shutter
  Bulb vs No bulb
  Hold the shutter open manually for long exposures
• Bigger JPEG buffer
  63 vs 10 shots
  Take more JPEG shots before waiting (burst mode)
• Bigger RAW buffer
  28 vs 7 shots
  Larger buffer for RAW shots (burst mode)
• Slow-motion videos
  Yes vs No
  Shoot slow-motion videos
• Higher extended ISO
  409600 vs 25600 ISO
  Higher extended ISO can give more low-light flexibility