• APS-C 366.6mm2
  • 16.1 megapixels
  •  
  • APS-C 366.6mm2
  • 24.4 megapixels
  • ISO 100 - 51,200

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Differences

Sony NEX-F3 advantages over Pentax K-3

  • Less expensive
    $600 vs $1150 (MSRP)
    Save money for lenses or accessories
  • Bigger pixels
    ~ 4.78 vs 3.91 microns
    Better low-light and dynamic range (all else equal)
  • In-camera panoramas
    Yes vs No
    Stitches multiple shots into a panoramic photo
  • Tiltable Screen
    Tiltable vs Fixed
    Tilt the screen for shooting flexbility
  • Thinner
    41 mm vs 77 mm
    Thinner
  • Lighter weight
    526g vs 1240g
    Lighter weight

Pentax K-3 advantages over Sony NEX-F3

  • Lens selection
    Excellent vs Good
    Better lens selection gives you more options
  • Focus peaking
    Peaker vs Non-peaker
    Your camera will highlight what's in focus
  • 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
  • Fast startup
    ~0.90 vs 1.5 sec
    Faster startup lets you catch the moment
  • More telephoto lens reach
    203 mm vs 83 mm
    Capture objects farther away with the kit lens
  • 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
  • Less shutter lag
    0.14 vs 0.31 sec
    Focus and take a photo quickly (wide angle)
  • More pixels
    24.4 vs 16.1 megapixels
    Higher resolution photos
  • Shoots 60p video
    Yes vs No
    A faster framerate can give you more editing options
  • Dual card slots
    Yes vs No
    Gives you more storage flexibility
  • Headphone jack
    Yes vs No
    Monitor audio recording while you shoot video
  • Optional anti-aliasing filter
    Optional vs Fixed
    Lets you choose sharper photos or reduced moiré
  • Faster JPEG shooting
    7.1 fps vs 5.5 fps
    Faster JPEG shooting (burst mode)
  • Bigger JPEG buffer
    75 vs 12 shots
    Take more JPEG shots before waiting (burst mode)
  • Faster shutter
    1/8000 vs 1/4000 sec
    Shoot wide open in bright light
  • Higher extended ISO
    51200 vs 16000 ISO
    Higher extended ISO can give more low-light flexibility

Similarities

Common Strengths

  • Internal flash
    Both provide
    Useful in a pinch for fill flash
  • 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 Wi-Fi
    Neither provide
    Share your photos wirelessly
  • 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
  • Slow-motion videos
    Neither provide
    Shoot slow-motion videos

User reviews

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Buy the Pentax K-3

Review Excerpt

  • Great image quality; Above-average battery life for a mirrorless camera; Makes light work of shooting self-portraits; Very versatile video mode for a camera of this class.

  • Built-in flash is weak and uneven; Grip feels cramped due to low shutter button position; Bundled kit lens turns in a mediocre performance, and body isn't sold without the lens.

  • Top-notch image quality; Great ergonomics in a compact body; Unique on-demand low-pass filtering; Broad sensitivity range; Large and bright viewfinder for an APS-C camera; Dual card slots; Optional Wi-Fi remote control

  • AE Lock button is poorly located; Below-average battery life for a DSLR; Rather dated-looking menu system; Requires a different battery grip accessory than its predecessors; Less third-party support than some rivals

The Competition

Compared to Sony NEX-5N

Sony NEX-F3
Sony NEX-5N
  • $600
  • APS-C
  • Less expensive
  • Internal flash
  • $700
  • APS-C
  • Shoots 60p video
  • Faster JPEG shooting
Pentax K-3
Sony NEX-5N
  • $699
  • APS-C
  • Lens selection
  • Focus peaking
  • $700
  • APS-C
  • Less expensive
  • Bigger pixels

Compared to Sony NEX-5R

Sony NEX-F3
Sony NEX-5R
  • $600
  • APS-C
  • Less expensive
  • Higher effective ISO
  • $499
  • APS-C
  • Focus peaking
  • Touchscreen
Pentax K-3
Sony NEX-5R
  • $699
  • APS-C
  • Lens selection
  • Eye-level viewfinder
  • $499
  • APS-C
  • Less expensive
  • Bigger pixels

Compared to Sony NEX-6

Sony NEX-F3
Sony NEX-6
  • $600
  • APS-C
  • Less expensive
  • Fast startup
  • $549
  • APS-C
  • Focus peaking
  • Eye-level viewfinder
Pentax K-3
Sony NEX-6
  • $699
  • APS-C
  • Lens selection
  • In-Camera Image Stabilization
  • $549
  • APS-C
  • Bigger pixels
  • In-camera panoramas

Compared to Nikon D7100

Sony NEX-F3
Nikon D7100
  • $600
  • APS-C
  • Bigger pixels
  • In-camera panoramas
  • $810
  • APS-C
  • Lens selection
  • Eye-level viewfinder
Pentax K-3
Nikon D7100
  • $699
  • APS-C
  • Focus peaking
  • In-Camera Image Stabilization
  • $810
  • APS-C
  • Fast startup
  • Longer stills battery life

Compared to Nikon D5300

Sony NEX-F3
Nikon D5300
  • $600
  • APS-C
  • Bigger pixels
  • In-camera panoramas
  • $549
  • APS-C
  • Lens selection
  • Tilt-swivel screen
Pentax K-3
Nikon D5300
  • $699
  • APS-C
  • Focus peaking
  • In-Camera Image Stabilization
  • $549
  • APS-C
  • Tilt-swivel screen
  • Fast startup
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