Pentax K-1 II vs Olympus E-M5 III

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

Leave Feedback

35mm 861.6mm²
36.4 megapixels
ISO 100 - 819,200

Go in depth with our full Pentax K-1 II Review.
How does it shoot? Pentax K-1 II in the real world.
See real-world photos taken with the K-1 II.
Compare Pentax K-1 II image quality against competitors.
What’s the bottom line? Read our Pentax K-1 II conclusion.

4/3 226.2mm²
20.4 megapixels
ISO 200 - 6400

Go in depth with our full Olympus E-M5 III Review.
How does it shoot? Olympus E-M5 III in the real world.
See real-world photos taken with the E-M5 III.
Compare Olympus E-M5 III image quality against competitors.
What’s the bottom line? Read our Olympus E-M5 III conclusion.

Buy From

Differences

Pentax K-1 II advantages over Olympus E-M5 III

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)
Built-in GPS
GPS vs None
Geotag your photos
Longer stills battery life
More info

Longer stills battery life

Cameras with longer battery life can take more photos before exhausting their batteries.

Special note: The measurement standard for battery life stipulates that if a camera has an internal flash, it must be used for 50% of photos taken. For this reason, comparisons of one camera with an internal flash to another without will not be comparable

670 vs 310 shots
Capture more photos
Top deck display
Yes vs No
Check settings with a screen on top of the camera
More pixels
36.4 vs 20.4 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
Bigger JPEG buffer
77 vs 26 shots
Take more JPEG shots before waiting (burst mode)
Higher extended ISO
819200 vs 25600 ISO
Higher extended ISO can give more low-light flexibility

Olympus E-M5 III advantages over Pentax K-1 II

Less expensive
$1099 vs $1997
Save money for lenses or accessories
Tilt-swivel screen
Tilt-swivel vs tilt-only
Tilt and swivel the screen for maximum shooting flexibility
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
On-sensor phase detect
Yes vs No
Usually improves live view and video AF performance
Thinner
49 mm vs 85 mm
Thinner
Lighter weight
414g vs 1010g
Lighter weight
Longer exposure
60 vs 30 sec
Long exposures for night shots
Faster JPEG shooting
30.0 fps vs 4.5 fps
Faster JPEG shooting (burst mode)
Faster RAW shooting
30.0 fps vs 4.6 fps
Faster RAW shooting in burst mode
Slow-motion videos
Yes vs No
Shoot slow-motion videos
Faster shutter
1/32000 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
Built-in Wi-Fi
Both provide
Share your photos wirelessly
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

In-camera panoramas
Neither provide
Stitches multiple shots into a panoramic photo
NFC
Neither provide
Simplifies pairing your camera with supported phones
Internal flash
Neither provide
Useful in a pinch for fill flash

User reviews

Amazon
Adorama
Read K-1 II 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-M5 III

Body Only (Black)

Body Only (Black)
Body Only (Silver)
Kit with 14-150mm Lens (Black)
Kit with 14-150mm Lens (Silver)

All E-M5 III 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

Improved image quality; Very good dynamic range & high ISO performance for a modern MFT sensor; Very fast AF; Excellent image stabilization; 4K video recording; Weather-sealed build quality.
Below average battery life; Small size can be awkward with long, heavy lenses; One SD card slot.
Read our Olympus E-M5 III 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-M5 III

Pentax K-1

$924
4/3

Tilt-swivel screen
Shoot 4K video

$1800
35mm

Larger sensor
Bigger pixels

Compare Olympus E-M5 III vs Pentax K-1

Compared to Canon 5D Mark IV

Pentax K-1 II

Canon 5D Mark IV

$1747
35mm

Less expensive
Focus peaking

$2249
35mm

Shoot 4K video
Touchscreen

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

Olympus E-M5 III

Canon 5D Mark IV

$924
4/3

Focus peaking
Less expensive

$2249
35mm

Larger sensor
Bigger pixels

Compare Olympus E-M5 III vs Canon 5D Mark IV

Compared to Nikon D850

Pentax K-1 II

Nikon D850

$1747
35mm

In-Camera Image Stabilization
High resolution composite

$2597
35mm

Shoot 4K video
Touchscreen

Compare Pentax K-1 II vs Nikon D850

Olympus E-M5 III

Nikon D850

$924
4/3

Less expensive
Tilt-swivel screen

$2597
35mm

Larger sensor
Bigger pixels

Compare Olympus E-M5 III vs Nikon D850

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-M5 III

Panasonic G100

$924
4/3

In-Camera Image Stabilization
High resolution composite

$599
4/3

Less expensive
In-camera panoramas

Compare Olympus E-M5 III vs Panasonic G100

Compared to Olympus E-M10 IV

Pentax K-1 II

Olympus E-M10 IV

$1747
35mm

Larger sensor
Bigger pixels

$630
4/3

Less expensive
Shoot 4K video

Compare Pentax K-1 II vs Olympus E-M10 IV

Olympus E-M5 III

Olympus E-M10 IV

$924
4/3

Tilt-swivel screen
High resolution composite

$630
4/3

Less expensive
Longer video battery life

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

Compare Other Cameras?