• APS-C 369.7mm2
  • 14.2 megapixels
  • ISO 100 - 12,800
  • 35mm 847.3mm2
  • 12.2 megapixels
  • ISO 100 - 102,400

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Differences

Sony A33 advantages over Sony A7S

  • In-Camera Image Stabilization
    Yes vs No
    Reduces the effects of camera shake at slower shutter speeds
  • Fast startup
    ~0.80 vs 2.0 sec
    Faster startup lets you catch the moment
  • Internal flash
    Internal flash vs None
    Useful in a pinch for fill flash
  • More pixels
    14.2 vs 12.2 megapixels
    Higher resolution photos
  • Faster JPEG shooting
    7.1 fps vs 5.0 fps
    Faster JPEG shooting (burst mode)

Sony A7S advantages over Sony A33

  • 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.
  • Bigger pixels
    ~ 8.40 vs 5.16 microns
    Better low-light and dynamic range (all else equal)
  • 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
    3,702 vs 591 iso
    Take photos in low light with less noise
  • Longer stills battery life
    More info 380 vs 270 shots
    Capture more photos
  • Thinner
    48 mm vs 84 mm
    Thinner
  • Higher max flash sync
    1/250 vs 1/160 sec
    Reduce the effect of ambient light in flash shots
  • Newer
    4 years vs 8 years old
    Newer cameras often support more advanced features
  • Shoots 24p video
    Yes vs No
    Gives your movies a big-screen feel
  • 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
  • Headphone jack
    Yes vs No
    Monitor audio recording while you shoot video
  • Bigger JPEG buffer
    62 vs 13 shots
    Take more JPEG shots before waiting (burst mode)
  • Slow-motion videos
    Yes vs No
    Shoot slow-motion videos
  • Faster shutter
    1/8000 vs 1/4000 sec
    Shoot wide open in bright light
  • Higher extended ISO
    409600 vs 25600 ISO
    Higher extended ISO can give more low-light flexibility

Similarities

Common Strengths

  • Eye-level viewfinder
    Both provide
    You'll be able to frame photos even when the sun is out
  • In-camera panoramas
    Both provide
    Stitches multiple shots into a panoramic photo
  • Tiltable Screen
    Both provide
    Tilt the screen for shooting flexbility
  • External Mic Jack
    Both provide
    Improved sound fidelity when shooting video
  • HDMI out
    Both provide
    Use HDMI output to monitor or review video
  • Hot shoe
    Both provide
    Off-camera flashes open new possibilities
  • Bulb shutter
    Both provide
    Hold the shutter open manually for long exposures

Common Weaknesses

  • Touchscreen
    Neither provide
    Interact with your camera just like your smartphone
  • Built-in Bluetooth
    Neither provide
    Always-on wireless connectivity
  • Built-in GPS
    Neither provide
    Geotag your photos
  • On-sensor phase detect
    Neither provide
    Usually improves live view and video AF performance
  • Top deck display
    Neither provide
    Check settings with a screen on top of the camera
  • Dual card slots
    Neither provide
    Gives you more storage flexibility

User reviews

Buy From

Review Excerpt

  • Outstanding high ISO performance; excellent dynamic range; 4K video recording (via uncompressed HDMI); XAVC S option for HD video; Slightly improved battery life over A7/A7R; Built-in Wi-Fi & NFC connectivity.

  • 4K video requires expensive external recorder; Sluggish startup time; Loud shutter; Silent Shooting mode hurts image quality; Lacks a built-in, pop-up flash; Limited selection of native Sony FE lenses.

The Competition

Compared to Nikon D3100

Sony A33
Nikon D3100
  • $540
  • APS-C
  • In-Camera Image Stabilization
  • In-camera panoramas
  • $700
  • APS-C
  • Lens selection
  • Fast startup
Sony A7S
Nikon D3100
  • $1998
  • 35mm
  • Focus peaking
  • Larger sensor
  • $700
  • APS-C
  • Lens selection
  • Fast startup

Compared to Sony A55

Sony A33
Sony A55
  • $540
  • APS-C
  • $734
  • APS-C
  • Higher effective ISO
  • Built-in GPS
Sony A7S
Sony A55
  • $1998
  • 35mm
  • Focus peaking
  • Larger sensor
  • $734
  • APS-C
  • In-Camera Image Stabilization
  • Fast startup

Compared to Sony A35

Sony A33
Sony A35
  • $540
  • APS-C
  • Tiltable Screen
  • Faster JPEG shooting
  • $567
  • APS-C
  • Higher effective ISO
  • Longer stills battery life
Sony A7S
Sony A35
  • $1998
  • 35mm
  • Focus peaking
  • Larger sensor
  • $567
  • APS-C
  • In-Camera Image Stabilization
  • Fast startup

Compared to Leica M-E (Typ 220)

Sony A33
Leica M-E (Typ 220)
  • $540
  • APS-C
  • Lens selection
  • In-Camera Image Stabilization
  • $4784
  • 35mm
  • Focus peaking
  • Larger sensor
Sony A7S
Leica M-E (Typ 220)
  • $1998
  • 35mm
  • Lens selection
  • Less expensive
  • $4784
  • 35mm
  • Thinner
  • More pixels

Compared to Sony A7S II

Sony A33
Sony A7S II
  • $540
  • APS-C
  • Fast startup
  • Internal flash
  • $2198
  • 35mm
  • Focus peaking
  • Larger sensor
Sony A7S
Sony A7S II
  • $1998
  • 35mm
  • Fast startup
  • Higher effective ISO
  • $2198
  • 35mm
  • In-Camera Image Stabilization
  • Shoot 4K video
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