Pentax K-3 vs Nikon Z6

Cameras
Compare Cameras
Pentax K-3 vs Nikon Z6

Leave Feedback

APS-C 366.6mm²
24.4 megapixels
ISO 100 - 51,200

Go in depth with our full Pentax K-3 Review.
How does it shoot? Pentax K-3 in the real world.
See real-world photos taken with the K-3.
Compare Pentax K-3 image quality against competitors.
What’s the bottom line? Read our Pentax K-3 conclusion.

35mm 858.0mm²
24.5 megapixels
ISO 100 - 51,200

Go in depth with our full Nikon Z6 Review.
How does it shoot? Nikon Z6 in the real world.
See real-world photos taken with the Z6.
Compare Nikon Z6 image quality against competitors.
What’s the bottom line? Read our Nikon Z6 conclusion.

Succeeded by the Pentax K-3 II
Compare K-3 vs K-3 II
Compare Pentax K-3 II vs Nikon Z6

Buy From

Differences

Pentax K-3 advantages over Nikon Z6

Fast startup
~0.90 vs 1.5 sec
Faster startup lets you catch the moment
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

560 vs 380 shots
Capture more photos
More telephoto lens reach
203 mm vs 70 mm
Capture objects farther away with the kit lens
Internal flash
Internal flash vs None
Useful in a pinch for fill flash
Less shutter lag
0.14 vs 0.20 sec
Focus and take a photo quickly (wide angle)
Dual card slots
Yes vs No
Gives you more storage flexibility
Optional anti-aliasing filter
Optional vs Fixed
Lets you choose sharper photos or reduced moiré
Bigger JPEG buffer
75 vs 47 shots
Take more JPEG shots before waiting (burst mode)

Nikon Z6 advantages over Pentax K-3

Larger sensor
35mm vs APS-C
More sensor area. Bigger is (generally) better.
Bigger pixels
~ 5.94 vs 3.91 microns
Better low-light and dynamic range (all else equal)
Shoot 4K video
4K (UHD) vs 1080p
Make sure you have a fast computer
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
Built-in Bluetooth
Yes vs No
Always-on wireless connectivity
Higher effective ISO

Higher effective ISO

Maximum effective ISO is an estimate of the highest sensitivity at which a camera can capture excellent quality photos.

Cameras with higher effective ISO will be better choices for indoor photography, night shooting, and indoor sports photography, especially if you intend to make large prints.

You can learn more at our glossary entry.

Maximum effective ISO test data courtesy of DxO Mark.
Z6 test data on DxO Mark K-3 test data on DxO Mark

3,299 vs 1,216 iso
Take photos in low light with less noise
On-sensor phase detect
Yes vs No
Usually improves live view and video AF performance
Newer
6 years vs 11 years old
Newer cameras often support more advanced features
More dots on screen
2100k vs 1037k dots
Can mean greater resolution or a brighter screen
More viewfinder magnification
0.80x vs 0.63x
Get a bigger view of the scene through the eye-level viewfinder
Wider angle kit lens
24 mm vs 27 mm
Capture more of the scene with the included lens
Faster JPEG shooting
12.0 fps vs 7.1 fps
Faster JPEG shooting (burst mode)
Faster RAW shooting
12.0 fps vs 7.1 fps
Faster RAW shooting in burst mode
Bigger RAW buffer
35 vs 24 shots
Larger buffer for RAW shots (burst mode)
Slow-motion videos
Yes vs No
Shoot slow-motion videos
Higher extended ISO
204800 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
In-Camera Image Stabilization
Both provide
Reduces the effects of camera shake at slower shutter speeds
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
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 GPS
Neither provide
Geotag your photos

User reviews

Amazon
Adorama
Read K-3 User Reviews

Amazon
Adorama
Read Z6 User Reviews

Buy From

Your purchases support this site

Buy the Pentax K-3

Body Only

Body Only
Kit with 18-135mm Lens

All K-3 Deals

Your purchases support this site

Buy the Nikon Z6

Body Only

Body Only
Kit with 24-70mm f/4 S lens
Kit with 24-70mm lens and FTZ adapter

All Z6 Deals

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
Read our Pentax K-3 Review

Great image quality; Terrific high ISO performance; Fast AF speeds; Eye AF; Swift 12fps burst shooting; In-body image stabilization; High-quality 4K video; Robust build quality; Familiar Nikon design.
Single XQD card slot; Default high ISO NR a bit strong; No 4K 60p; 1/200s x-sync speed; Limited native lens selection (at this time).
Read our Nikon Z6 Review

The Competition

Compared to Nikon D7100

Pentax K-3

Nikon D7100

$699
APS-C

Focus peaking
In-Camera Image Stabilization

$745
APS-C

Fast startup
Longer stills battery life

Compare Pentax K-3 vs Nikon D7100

Nikon Z6

Nikon D7100

$1396
35mm

Focus peaking
Larger sensor

$745
APS-C

Less expensive
Fast startup

Compare Nikon Z6 vs Nikon D7100

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

Compare Pentax K-3 vs Nikon D5300

Nikon Z6

Nikon D5300

$1396
35mm

Focus peaking
Larger sensor

$549
APS-C

Less expensive
Tilt-swivel screen

Compare Nikon Z6 vs Nikon D5300

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

Compare Pentax K-3 vs Nikon D7200

Nikon Z6

Nikon D7200

$1396
35mm

Focus peaking
Larger sensor

$1016
APS-C

Less expensive
Fast startup

Compare Nikon Z6 vs Nikon D7200

Compared to Sony A7 III

Pentax K-3

Sony A7 III

$699
APS-C

Lens selection
Fast startup

$1531
35mm

Larger sensor
Bigger pixels

Compare Pentax K-3 vs Sony A7 III

Nikon Z6

Sony A7 III

$1396
35mm

Top deck display
More dots on screen

$1531
35mm

Less expensive
NFC

Compare Nikon Z6 vs Sony A7 III

Compared to Canon EOS R

Pentax K-3

Canon EOS R

$699
APS-C

In-Camera Image Stabilization
Fast startup

$1499
35mm

Larger sensor
Tilt-swivel screen

Compare Pentax K-3 vs Canon EOS R

Nikon Z6

Canon EOS R

$1396
35mm

Less expensive
In-Camera Image Stabilization

$1499
35mm

Tilt-swivel screen
More telephoto lens reach

Compare Nikon Z6 vs Canon EOS R

Compare Other Cameras?