• APS-C 366.6mm2
  • 24.4 megapixels
  • ISO 100 - 51,200
  • Medium format 1,441.0mm2
  • 51.4 megapixels
  • ISO 100 - 12,800

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Differences

Pentax K-3 advantages over Fujifilm GFX 50S

  • In-Camera Image Stabilization
    Yes vs No
    Reduces the effects of camera shake at slower shutter speeds
  • Fast startup
    ~0.90 vs 1.3 sec
    Faster startup lets you catch the moment
  • Longer stills battery life
    More info 560 vs 400 shots
    Capture more photos
  • Internal flash
    Internal flash vs None
    Useful in a pinch for fill flash
  • Less shutter lag
    0.14 vs 0.48 sec
    Focus and take a photo quickly (wide angle)
  • Shoots 60p video
    Yes vs No
    A faster framerate can give you more editing options
  • Optional anti-aliasing filter
    Optional vs None
    Lets you choose sharper photos or reduced moiré
  • Faster JPEG shooting
    7.1 fps vs 3.0 fps
    Faster JPEG shooting (burst mode)
  • Bigger JPEG buffer
    75 vs 40 shots
    Take more JPEG shots before waiting (burst mode)
  • Faster RAW shooting
    7.1 fps vs 3.0 fps
    Faster RAW shooting in burst mode

Fujifilm GFX 50S advantages over Pentax K-3

  • Larger sensor
    Medium format vs APS-C
    More sensor area. Bigger is (generally) better.
  • Bigger pixels
    ~ 5.31 vs 3.91 microns
    Better low-light and dynamic range (all else equal)
  • Touchscreen
    Touch vs No touch
    Interact with your camera just like your smartphone
  • Tiltable Screen
    Tiltable vs Fixed
    Tilt the screen for shooting flexbility
  • Built-in Wi-Fi
    Wi-Fi vs None
    Share your photos wirelessly
  • Newer
    8 years vs 11 years old
    Newer cameras often support more advanced features
  • More dots on screen
    2360k vs 1037k dots
    Can mean greater resolution or a brighter screen
  • More viewfinder magnification
    0.85x vs 0.63x
    Get a bigger view of the scene through the eye-level viewfinder
  • More pixels
    51.4 vs 24.4 megapixels
    Higher resolution photos
  • Longer exposure
    3600 vs 30 sec
    Long exposures for night shots
  • Faster shutter
    1/16000 vs 1/8000 sec
    Shoot wide open in bright light
  • Higher extended ISO
    102400 vs 51200 ISO
    Higher extended ISO can give more low-light flexibility

Similarities

Common Strengths

  • Focus peaking
    Both provide
    Your camera will highlight what's in focus
  • Eye-level viewfinder
    Both provide
    You'll be able to frame photos even when the sun is out
  • Top deck display
    Both provide
    Check settings with a screen on top of the camera
  • 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
  • Dual card slots
    Both provide
    Gives you more storage flexibility
  • Headphone jack
    Both provide
    Monitor audio recording while you shoot video
  • Bulb shutter
    Both provide
    Hold the shutter open manually for long exposures

Common Weaknesses

  • Tilt-swivel screen
    Neither provide
    Tilt and swivel the screen for maximum shooting flexibility
  • In-camera panoramas
    Neither provide
    Stitches multiple shots into a panoramic photo
  • NFC
    Neither provide
    Simplifies pairing your camera with supported phones
  • 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

Buy From

Review Excerpt

  • 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

  • Fantastic image quality across the board; Excellent RAW dynamic range; Superb high ISO performance; Functional and user-friendly body; Robust weather-sealed construction; Detachable EVF; Tilting touchscreen; Very good lens quality.

  • Slow AF speeds; Performance can't compete with high-end full-frame cameras; Limited native lens selection so far; Expensive accessories; Unimpressive JPEG dynamic range; 1/125s maximum flash sync.

The Competition

Compared to Nikon D7100

Pentax K-3
Nikon D7100
  • $699
  • APS-C
  • Focus peaking
  • In-Camera Image Stabilization
  • $810
  • APS-C
  • Fast startup
  • Longer stills battery life
Fujifilm GFX 50S
Nikon D7100
  • $5197
  • Medium format
  • Focus peaking
  • Larger sensor
  • $810
  • APS-C
  • Less expensive
  • Fast startup

Compared to Nikon D5300

Pentax K-3
Nikon D5300
  • $699
  • APS-C
  • Focus peaking
  • In-Camera Image Stabilization
  • $549
  • APS-C
  • Tilt-swivel screen
  • Fast startup
Fujifilm GFX 50S
Nikon D5300
  • $5197
  • Medium format
  • Focus peaking
  • Larger sensor
  • $549
  • APS-C
  • Less expensive
  • Tilt-swivel screen

Compared to Nikon D7200

Pentax K-3
Nikon D7200
  • $699
  • APS-C
  • Focus peaking
  • In-Camera Image Stabilization
  • $1016
  • APS-C
  • Fast startup
  • Built-in Wi-Fi
Fujifilm GFX 50S
Nikon D7200
  • $5197
  • Medium format
  • Focus peaking
  • Larger sensor
  • $1016
  • APS-C
  • Less expensive
  • Fast startup

Compared to Hasselblad X1D

Pentax K-3
Hasselblad X1D
  • $699
  • APS-C
  • In-Camera Image Stabilization
  • Internal flash
  • $4999
  • Medium format
  • Larger sensor
  • Bigger pixels
Fujifilm GFX 50S
Hasselblad X1D
  • $5197
  • Medium format
  • Tiltable Screen
  • Top deck display
  • $4999
  • Medium format
  • Higher max flash sync

Compared to Fujifilm GFX 50R

Pentax K-3
Fujifilm GFX 50R
  • $699
  • APS-C
  • In-Camera Image Stabilization
  • Longer stills battery life
  • $4599
  • Medium format
  • Larger sensor
  • Bigger pixels
Fujifilm GFX 50S
Fujifilm GFX 50R
  • $5197
  • Medium format
  • Top deck display
  • More viewfinder magnification
  • $4599
  • Medium format
  • Less expensive
  • Built-in Bluetooth
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