• APS-C 366.6mm2
  • 24.4 megapixels
  • ISO 100 - 51,200
  • 1/2.3 inch 28.1mm2
  • 20.3 megapixels
  • 24.00mm - 960.00mm (35mm eq.)

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Differences

Pentax K-3 advantages over Canon SX730 HS

  • Focus peaking
    Peaker vs Non-peaker
    Your camera will highlight what's in focus
  • Larger sensor
    APS-C vs 1/2.3 inch
    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
  • Bigger pixels
    ~ 3.91 vs 1.19 microns
    Better low-light and dynamic range (all else equal)
  • RAW file ability
    Yes vs No
    Gives you more flexibility to develop your photos later
  • Longer stills battery life
    More info 560 vs 250 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
  • Shoots 24p video
    Yes vs No
    Gives your movies a big-screen feel
  • Hot shoe
    Hot shoe vs None
    Off-camera flashes open new possibilities
  • More pixels
    24.4 vs 20.3 megapixels
    Higher resolution photos
  • 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 None
    Lets you choose sharper photos or reduced moiré
  • Longer exposure
    30 vs 15 sec
    Long exposures for night shots
  • Bulb shutter
    Bulb vs No bulb
    Hold the shutter open manually for long exposures
  • Faster JPEG shooting
    7.1 fps vs 5.9 fps
    Faster JPEG shooting (burst mode)
  • Faster shutter
    1/8000 vs 1/3200 sec
    Shoot wide open in bright light
  • Higher extended ISO
    51200 vs 3200 ISO
    Higher extended ISO can give more low-light flexibility

Canon SX730 HS advantages over Pentax K-3

  • Tiltable Screen
    Tiltable vs Fixed
    Tilt the screen for shooting flexbility
  • Built-in Wi-Fi
    Wi-Fi vs None
    Share your photos wirelessly
  • NFC
    Yes vs No
    Simplifies pairing your camera with supported phones
  • Built-in Bluetooth
    Yes vs No
    Always-on wireless connectivity
  • Thinner
    39 mm vs 77 mm
    Thinner
  • Higher max flash sync
    1/2000 vs 1/180 sec
    Reduce the effect of ambient light in flash shots
  • Newer
    8 years vs 11 years old
    Newer cameras often support more advanced features

Similarities

Common Strengths

  • Rear display
    Both provide
    Review photos on the back of the camera
  • In-Camera Image Stabilization
    Both provide
    Reduces the effects of camera shake at slower shutter speeds
  • Internal flash
    Both provide
    Useful in a pinch for fill flash
  • Manual focus
    Both provide
    AF is for the weak. Real photographers focus manually.
  • HDMI out
    Both provide
    Use HDMI output to monitor or review video

Common Weaknesses

  • Tilt-swivel screen
    Neither provide
    Tilt and swivel the screen for maximum shooting flexibility
  • Touchscreen
    Neither provide
    Interact with your camera just like your smartphone
  • In-camera panoramas
    Neither provide
    Stitches multiple shots into a panoramic photo
  • Built-in GPS
    Neither provide
    Geotag your photos
  • On-sensor phase detect
    Neither provide
    Usually improves live view and video AF performance
  • Integrated ND filter
    Neither provide
    Shoot in daylight with a large aperture or slow shutter
  • Slow-motion videos
    Neither provide
    Shoot slow-motion videos

User reviews

Buy From

Your purchases support this site

Buy the Pentax K-3

Your purchases support this site

Buy the Canon SX730 HS

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

The Competition

Compared to Nikon D7100

Pentax K-3
Nikon D7100
  • $699
  • APS-C
  • Focus peaking
  • In-Camera Image Stabilization
  • $750
  • APS-C
  • Fast startup
  • Longer stills battery life
Canon SX730 HS
Nikon D7100
  • $399
  • 1/2.3 inch
  • Less expensive
  • In-Camera Image Stabilization
  • $750
  • APS-C
  • Larger sensor
  • Eye-level viewfinder

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
Canon SX730 HS
Nikon D5300
  • $399
  • 1/2.3 inch
  • Less expensive
  • In-Camera Image Stabilization
  • $549
  • APS-C
  • Tilt-swivel screen
  • Larger sensor

Compared to Nikon D7200

Pentax K-3
Nikon D7200
  • $699
  • APS-C
  • Focus peaking
  • In-Camera Image Stabilization
  • $1021
  • APS-C
  • Fast startup
  • Built-in Wi-Fi
Canon SX730 HS
Nikon D7200
  • $399
  • 1/2.3 inch
  • Less expensive
  • In-Camera Image Stabilization
  • $1021
  • APS-C
  • Larger sensor
  • Eye-level viewfinder

Compared to Nikon A900

Pentax K-3
Nikon A900
  • $699
  • APS-C
  • Focus peaking
  • Larger sensor
  • $397
  • 1/2.3 inch
  • Shoot 4K video
  • In-camera panoramas
Canon SX730 HS
Nikon A900
  • $399
  • 1/2.3 inch
  • Manual focus
  • Higher-res screen
  • $397
  • 1/2.3 inch
  • Shoot 4K video
  • In-camera panoramas

Compared to Canon SX740 HS

Pentax K-3
Canon SX740 HS
  • $699
  • APS-C
  • Focus peaking
  • Larger sensor
  • $447
  • 1/2.3 inch
  • Shoot 4K video
  • Tiltable Screen
Canon SX730 HS
Canon SX740 HS
  • $399
  • 1/2.3 inch
  • NFC
  • $447
  • 1/2.3 inch
  • Shoot 4K video
  • Longer video battery life
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