Pentax K-1 II vs Sony A1

Cameras
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Pentax K-1 II vs Sony A1

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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.

35mm 861.6mm²
50.1 megapixels
ISO 100 - 32,000

Go in depth with our full Sony A1 Review.
See real-world photos taken with the A1.
Compare Sony A1 image quality against competitors.

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Differences

Pentax K-1 II advantages over Sony A1

Lens selection
Excellent vs Good
Better lens selection gives you more options
Less expensive
$1997 vs $6498*
Save money for lenses or accessories
Bigger pixels
~ 4.88 vs 4.16 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
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 530 shots
Capture more photos
Top deck display
Yes vs No
Check settings with a screen on top of the camera
Optional anti-aliasing filter
Optional vs None
Lets you choose sharper photos or reduced moiré
Higher extended ISO
819200 vs 102400 ISO
Higher extended ISO can give more low-light flexibility

Sony A1 advantages over Pentax K-1 II

Shoot 4K video
No vs 1080p
Make sure you have a fast computer
Touchscreen
Touch vs No touch
Interact with your camera just like your smartphone
NFC
Yes vs No
Simplifies pairing your camera with supported phones
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
Higher max flash sync
1/400 vs 1/200 sec
Reduce the effect of ambient light in flash shots
Newer
4 years vs 7 years old
Newer cameras often support more advanced features
Lighter weight
737g vs 1010g
Lighter weight
More viewfinder magnification
0.90x vs 0.70x
Get a bigger view of the scene through the eye-level viewfinder
More pixels
50.1 vs 36.4 megapixels
Higher resolution photos
Faster JPEG shooting
30.0 fps vs 4.5 fps
Faster JPEG shooting (burst mode)
Bigger JPEG buffer
165 vs 77 shots
Take more JPEG shots before waiting (burst mode)
Faster RAW shooting
20.0 fps vs 4.6 fps
Faster RAW shooting in burst mode
Bigger RAW buffer
155 vs 17 shots
Larger buffer for RAW shots (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
Tiltable Screen
Both provide
Tilt the screen for shooting flexbility
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
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

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
Internal flash
Neither provide
Useful in a pinch for fill flash

User reviews

Amazon
Adorama
Read K-1 II User Reviews

Amazon
Adorama
Read A1 User Reviews

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Kit with 28-105mm Lens

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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

We haven’t finished our review of the Sony A1, but we have extensive sample photos and a hands-on report.
Read our Sony A1 Shooter's Report

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

Sony A1

Pentax K-1

$6498
35mm

Shoot 4K video
Touchscreen

$1800
35mm

Lens selection
Bigger pixels

Compare Sony A1 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

Sony A1

Canon 5D Mark IV

$6498
35mm

Focus peaking
Slower slow-motion

$2249
35mm

Lens selection
Less expensive

Compare Sony A1 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

Sony A1

Nikon D850

$6498
35mm

Slower slow-motion
In-Camera Image Stabilization

$2464
35mm

Less expensive
Lens selection

Compare Sony A1 vs Nikon D850

Compared to Sony A7R IV

Pentax K-1 II

Sony A7R IV

$1747
35mm

Lens selection
Less expensive

$3331
35mm

Shoot 4K video
Touchscreen

Compare Pentax K-1 II vs Sony A7R IV

Sony A1

Sony A7R IV

$6498
35mm

Slower slow-motion
Longer video battery life

$3331
35mm

Less expensive
High resolution composite

Compare Sony A1 vs Sony A7R IV

Compared to Canon R5

Pentax K-1 II

Canon R5

$1747
35mm

Less expensive
High resolution composite

$3349
35mm

Tilt-swivel screen
Shoot 4K video

Compare Pentax K-1 II vs Canon R5

Sony A1

Canon R5

$6498
35mm

Slower slow-motion
NFC

$3349
35mm

Less expensive
Tilt-swivel screen

Compare Sony A1 vs Canon R5

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