Pentax K-3 III vs Panasonic GH5 II

Cameras
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Pentax K-3 III vs Panasonic GH5 II

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APS-C 361.2mm²
25.7 megapixels
ISO 100 - 1,600,000

Go in depth with our full Pentax K-3 III Review.
See real-world photos taken with the K-3 III.

4/3 224.9mm²
20.3 megapixels
ISO 200 - 25,600

Go in depth with our full Panasonic GH5 II Review.
See real-world photos taken with the GH5 II.

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Differences

Pentax K-3 III advantages over Panasonic GH5 II

Larger sensor
APS-C vs 4/3
More sensor area. Bigger is (generally) better.
High resolution composite
Yes vs No
Combine multiple shots to form a super hi-res version
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

800 vs 410 shots
Capture more photos
Top deck display
Yes vs No
Check settings with a screen on top of the camera
More viewfinder magnification
1.05x vs 0.76x
Get a bigger view of the scene through the eye-level viewfinder
More pixels
25.7 vs 20.3 megapixels
Higher resolution photos
Optional anti-aliasing filter
Optional vs None
Lets you choose sharper photos or reduced moiré
Higher extended ISO
1600000 vs 25600 ISO
Higher extended ISO can give more low-light flexibility

Panasonic GH5 II advantages over Pentax K-3 III

Less expensive
$1798 vs $2344
Save money for lenses or accessories
Tilt-swivel screen
Tilt-swivel vs none
Tilt and swivel the screen for maximum shooting flexibility
Longer exposure
60 vs 30 sec
Long exposures for night shots
Bigger JPEG buffer
108 vs 30 shots
Take more JPEG shots before waiting (burst mode)
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
Shoot 4K video
Both provide
Make sure you have a fast computer
Touchscreen
Both provide
Interact with your camera just like your smartphone
Built-in Wi-Fi
Both provide
Share your photos wirelessly
Built-in Bluetooth
Both provide
Always-on wireless connectivity
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

In-camera panoramas
Neither provide
Stitches multiple shots into a panoramic photo
NFC
Neither provide
Simplifies pairing your camera with supported phones
Built-in GPS
Neither provide
Geotag your photos
On-sensor phase detect
Neither provide
Usually improves live view and video AF performance
Internal flash
Neither provide
Useful in a pinch for fill flash

User reviews

Amazon
Adorama
Read K-3 III User Reviews

Amazon
Adorama
Read GH5 II User Reviews

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Your purchases support this site

Buy the Pentax K-3 III

Body Only

Body Only
Kit with 20-40mm F2.8-4 Lens
Kit with 55-300mm f/4.5-6.3 Lens

All K-3 III Deals

Your purchases support this site

Buy the Panasonic GH5 II

Body Only

Body Only
Kit with 12-35mm F2.8 Lens
Kit with 12-60mm Lens

All GH5 II Deals

Review Excerpt

We haven’t finished our review of the Pentax K-3 III, but we have extensive sample photos and a hands-on report.
See our Pentax K-3 III First Shots

We haven’t reviewed the Panasonic GH5 II.
Read our Panasonic GH5 II Hands-On Preview

The Competition

Compared to Nikon D5600

Pentax K-3 III

Nikon D5600

$1847
APS-C

Focus peaking
In-Camera Image Stabilization

$898
APS-C

Less expensive
Tilt-swivel screen

Compare Pentax K-3 III vs Nikon D5600

Panasonic GH5 II

Nikon D5600

$1298
4/3

Focus peaking
In-Camera Image Stabilization

$898
APS-C

Less expensive
Larger sensor

Compare Panasonic GH5 II vs Nikon D5600

Compared to Pentax KP

Pentax K-3 III

Pentax KP

$1847
APS-C

Shoot 4K video
Touchscreen

$999
APS-C

Less expensive
Tiltable Screen

Compare Pentax K-3 III vs Pentax KP

Panasonic GH5 II

Pentax KP

$1298
4/3

Tilt-swivel screen
Shoot 4K video

$999
APS-C

Less expensive
Larger sensor

Compare Panasonic GH5 II vs Pentax KP

Compared to Canon T7i

Pentax K-3 III

Canon T7i

$1847
APS-C

Focus peaking
In-Camera Image Stabilization

$700
APS-C

Less expensive
Tilt-swivel screen

Compare Pentax K-3 III vs Canon T7i

Panasonic GH5 II

Canon T7i

$1298
4/3

Focus peaking
In-Camera Image Stabilization

$700
APS-C

Less expensive
Larger sensor

Compare Panasonic GH5 II vs Canon T7i

Compared to Canon SL3

Pentax K-3 III

Canon SL3

$1847
APS-C

Focus peaking
In-Camera Image Stabilization

$624
APS-C

Less expensive
Tilt-swivel screen

Compare Pentax K-3 III vs Canon SL3

Panasonic GH5 II

Canon SL3

$1298
4/3

Focus peaking
In-Camera Image Stabilization

$624
APS-C

Less expensive
Larger sensor

Compare Panasonic GH5 II vs Canon SL3

Compared to Canon 90D

Pentax K-3 III

Canon 90D

$1847
APS-C

Focus peaking
In-Camera Image Stabilization

$1099
APS-C

Less expensive
Tilt-swivel screen

Compare Pentax K-3 III vs Canon 90D

Panasonic GH5 II

Canon 90D

$1298
4/3

Focus peaking
In-Camera Image Stabilization

$1099
APS-C

Less expensive
Larger sensor

Compare Panasonic GH5 II vs Canon 90D

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