• 35mm 861.6mm2
  • 36.4 megapixels
  • ISO 100 - 819,200
  • 4/3 226.2mm2
  • 20.3 megapixels
  • ISO 200 - 25,600

Buy From

Differences

Pentax K-1 II advantages over Olympus E-M10 IV

  • Larger sensor
    35mm vs 4/3
    More sensor area. Bigger is (generally) better.
  • Bigger pixels
    ~ 4.88 vs 3.36 microns
    Better low-light and dynamic range (all else equal)
  • High resolution composite
    Yes vs No
    Combine multiple shots to form a super hi-res version
  • Built-in GPS
    GPS vs None
    Geotag your photos
  • More telephoto lens reach
    105 mm vs 84 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
  • More pixels
    36.4 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
  • Higher extended ISO
    819200 vs 25600 ISO
    Higher extended ISO can give more low-light flexibility

Olympus E-M10 IV advantages over Pentax K-1 II

  • Less expensive
    $699 vs $1997
    Save money for lenses or accessories
  • Shoot 4K video
    4K (DCI) vs 1080p
    Make sure you have a fast computer
  • Touchscreen
    Touch vs No touch
    Interact with your camera just like your smartphone
  • Built-in Bluetooth
    Yes vs No
    Always-on wireless connectivity
  • Internal flash
    Internal flash vs None
    Useful in a pinch for fill flash
  • Thinner
    49 mm vs 85 mm
    Thinner
  • Newer
    4 years vs 7 years old
    Newer cameras often support more advanced features
  • Lighter weight
    383g vs 1010g
    Lighter weight
  • Longer exposure
    60 vs 30 sec
    Long exposures for night shots
  • Slow-motion videos
    Yes vs No
    Shoot slow-motion videos
  • Faster shutter
    1/16000 vs 1/8000 sec
    Shoot wide open in bright light

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
  • In-Camera Image Stabilization
    Both provide
    Reduces the effects of camera shake at slower shutter speeds
  • Tiltable Screen
    Both provide
    Tilt the screen for shooting flexbility
  • Built-in Wi-Fi
    Both provide
    Share your photos wirelessly
  • 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

  • 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
  • On-sensor phase detect
    Neither provide
    Usually improves live view and video AF performance

User reviews

Buy From

Your purchases support this site

Buy the Pentax K-1 II
Body Only
  • Body Only
  • Kit with 28-105mm Lens
All K-1 II Deals

Your purchases support this site

Buy the Olympus E-M10 IV
Body Only
  • Body Only
  • Kit with 14-42mm Lens
All E-M10 IV Deals

Review Excerpt

  • Excellent build and comfortable handling; Bright, roomy viewfinder and articulated LCD; Great image quality; Good performance for the class; In-camera stabilization, GPS and Wi-Fi; Incredibly feature-rich design.

  • Bulkier than APS-C DSLRs; Top ISOs are for the spec sheet, not the real world; JPEGs are a bit punchy by default; Slow startup; Below-average battery life; Only a relatively modest update to the K-1.

  • Read our Pentax K-1 II Review

The Competition

Compared to Pentax K-1

Pentax K-1 II
Pentax K-1
  • $1747
  • 35mm
  • Higher extended ISO
  • $1800
  • 35mm

Compare Pentax K-1 II vs Pentax K-1

Olympus E-M10 IV
Pentax K-1
  • $649
  • 4/3
  • Shoot 4K video
  • Touchscreen
  • $1800
  • 35mm
  • Larger sensor
  • Bigger pixels

Compare Olympus E-M10 IV vs Pentax K-1

Compared to Canon 5D Mark IV

Pentax K-1 II
Canon 5D Mark IV
  • $1747
  • 35mm
  • Less expensive
  • Focus peaking
  • $2349
  • 35mm
  • Shoot 4K video
  • Touchscreen

Compare Pentax K-1 II vs Canon 5D Mark IV

Olympus E-M10 IV
Canon 5D Mark IV
  • $649
  • 4/3
  • Focus peaking
  • Less expensive
  • $2349
  • 35mm
  • Larger sensor
  • Bigger pixels

Compare Olympus E-M10 IV vs Canon 5D Mark IV

Compared to Nikon D850

Pentax K-1 II
Nikon D850
  • $1747
  • 35mm
  • In-Camera Image Stabilization
  • High resolution composite
  • $2464
  • 35mm
  • Shoot 4K video
  • Touchscreen

Compare Pentax K-1 II vs Nikon D850

Olympus E-M10 IV
Nikon D850
  • $649
  • 4/3
  • Less expensive
  • In-Camera Image Stabilization
  • $2464
  • 35mm
  • Larger sensor
  • Bigger pixels

Compare Olympus E-M10 IV vs Nikon D850

Compared to Olympus E-M5 III

Pentax K-1 II
Olympus E-M5 III
  • $1747
  • 35mm
  • Larger sensor
  • Bigger pixels
  • $924
  • 4/3
  • Less expensive
  • Tilt-swivel screen

Compare Pentax K-1 II vs Olympus E-M5 III

Olympus E-M10 IV
Olympus E-M5 III
  • $649
  • 4/3
  • Less expensive
  • Longer video battery life
  • $924
  • 4/3
  • Tilt-swivel screen
  • High resolution composite

Compare Olympus E-M10 IV vs Olympus E-M5 III

Compared to Panasonic G100

Pentax K-1 II
Panasonic G100
  • $1747
  • 35mm
  • Larger sensor
  • In-Camera Image Stabilization
  • $599
  • 4/3
  • Less expensive
  • Tilt-swivel screen

Compare Pentax K-1 II vs Panasonic G100

Olympus E-M10 IV
Panasonic G100
  • $649
  • 4/3
  • In-Camera Image Stabilization
  • More telephoto lens reach
  • $599
  • 4/3
  • Less expensive
  • Tilt-swivel screen

Compare Olympus E-M10 IV vs Panasonic G100

Compare Other Cameras?