Pentax K-1 II vs Sony A900
55 Imaging
77 Features
82 Overall
79


54 Imaging
66 Features
62 Overall
64
Pentax K-1 II vs Sony A900 Key Specs
(Full Review)
- 36MP - Full frame Sensor
- 3.2" Fully Articulated Screen
- ISO 100 - 819200
- Sensor based 5-axis Image Stabilization
- No Anti-Alias Filter
- 1/8000s Max Shutter
- 1920 x 1080 video
- Pentax KAF4 Mount
- 1010g - 137 x 110 x 86mm
- Announced February 2018
- Superseded the Pentax K-1
(Full Review)
- 25MP - Full frame Sensor
- 3" Fixed Display
- ISO 100 - 6400
- Sensor based Image Stabilization
- 1/8000s Maximum Shutter
- No Video
- Sony/Minolta Alpha Mount
- 895g - 156 x 117 x 82mm
- Released October 2008
- Successor is Sony A99

Pentax K-1 II vs Sony A900 Overview
Following is a comprehensive review of the Pentax K-1 II and Sony A900, both Advanced DSLR cameras by manufacturers Pentax and Sony. There exists a sizable gap among the image resolutions of the K-1 II (36MP) and A900 (25MP) but they use the same exact sensor size (Full frame).

The K-1 II was announced 9 years after the A900 which is a fairly significant difference as far as camera technology is concerned. Both the cameras offer the identical body type (Mid-size SLR).
Before going straight into a in-depth comparison, below is a brief summary of how the K-1 II grades against the A900 in the way of portability, imaging, features and an overall score.

Pentax K-1 II vs Sony A900 Gallery
This is a sample of the gallery pics for Pentax K-1 Mark II & Sony Alpha DSLR-A900. The whole galleries are viewable at Pentax K-1 II Gallery & Sony A900 Gallery.
Reasons to pick Pentax K-1 II over the Sony A900
K-1 II | A900 | |||
---|---|---|---|---|
Released | February 2018 | ![]() | October 2008 | More modern by 114 months |
Display type | Fully Articulated | ![]() | Fixed | Fully Articulating display |
Display sizing | 3.2" | ![]() | 3" | Larger display (+0.2") |
Display resolution | 1037k | ![]() | 922k | Crisper display (+115k dot) |
Reasons to pick Sony A900 over the Pentax K-1 II
A900 | K-1 II |
---|
Common features in the Pentax K-1 II and Sony A900
K-1 II | A900 | |||
---|---|---|---|---|
Manually focus | ![]() | Very exact focus | ||
Selfie screen | ![]() | Neither includes selfie screen | ||
Touch friendly display | ![]() | Missing Touch friendly display |
Pentax K-1 II vs Sony A900 Physical Comparison
If you're aiming to carry around your camera frequently, you will need to factor its weight and size. The Pentax K-1 II features external dimensions of 137mm x 110mm x 86mm (5.4" x 4.3" x 3.4") and a weight of 1010 grams (2.23 lbs) whilst the Sony A900 has specifications of 156mm x 117mm x 82mm (6.1" x 4.6" x 3.2") with a weight of 895 grams (1.97 lbs).
Compare the Pentax K-1 II and Sony A900 in our brand new Camera & Lens Size Comparison Tool.
Always remember, the weight of an ILC will differ based on the lens you select at the time. Here is the front view scale comparison of the K-1 II compared to the A900.

Taking into account dimensions and weight, the portability score of the K-1 II and A900 is 55 and 54 respectively.

Pentax K-1 II vs Sony A900 Sensor Comparison
Sometimes, it is very tough to visualize the gap in sensor sizes purely by viewing a spec sheet. The image below may offer you a much better sense of the sensor dimensions in the K-1 II and A900.
Clearly, each of these cameras enjoy the same exact sensor sizing but different megapixels. You can expect to see the Pentax K-1 II to result in extra detail with its extra 11 Megapixels. Greater resolution will also make it easier to crop images far more aggressively. The younger K-1 II provides a benefit with regard to sensor tech.

Pentax K-1 II vs Sony A900 Screen and ViewFinder


Photography Type Scores
Portrait Comparison

Street Comparison

Sports Comparison

Travel Comparison

Landscape Comparison

Vlogging Comparison

Pentax K-1 II vs Sony A900 Specifications
Pentax K-1 Mark II | Sony Alpha DSLR-A900 | |
---|---|---|
General Information | ||
Brand Name | Pentax | Sony |
Model type | Pentax K-1 Mark II | Sony Alpha DSLR-A900 |
Class | Advanced DSLR | Advanced DSLR |
Announced | 2018-02-22 | 2008-10-22 |
Physical type | Mid-size SLR | Mid-size SLR |
Sensor Information | ||
Chip | PRIME IV | Bionz |
Sensor type | CMOS | CMOS |
Sensor size | Full frame | Full frame |
Sensor measurements | 35.9 x 24mm | 35.9 x 24mm |
Sensor area | 861.6mm² | 861.6mm² |
Sensor resolution | 36MP | 25MP |
Anti alias filter | ||
Aspect ratio | 3:2 | 3:2 and 16:9 |
Peak resolution | 7360 x 4912 | 6048 x 4032 |
Highest native ISO | 819200 | 6400 |
Lowest native ISO | 100 | 100 |
RAW files | ||
Autofocusing | ||
Focus manually | ||
Touch to focus | ||
Continuous autofocus | ||
Autofocus single | ||
Autofocus tracking | ||
Selective autofocus | ||
Center weighted autofocus | ||
Autofocus multi area | ||
Autofocus live view | ||
Face detection autofocus | ||
Contract detection autofocus | ||
Phase detection autofocus | ||
Total focus points | 33 | 9 |
Cross type focus points | 25 | - |
Lens | ||
Lens mount type | Pentax KAF4 | Sony/Minolta Alpha |
Amount of lenses | 151 | 143 |
Focal length multiplier | 1 | 1 |
Screen | ||
Screen type | Fully Articulated | Fixed Type |
Screen sizing | 3.2" | 3" |
Resolution of screen | 1,037 thousand dots | 922 thousand dots |
Selfie friendly | ||
Liveview | ||
Touch friendly | ||
Screen tech | - | TFT Xtra Fine color LCD |
Viewfinder Information | ||
Viewfinder type | Optical (pentaprism) | Optical (pentaprism) |
Viewfinder coverage | 100% | 100% |
Viewfinder magnification | 0.7x | 0.74x |
Features | ||
Minimum shutter speed | 30 seconds | 30 seconds |
Fastest shutter speed | 1/8000 seconds | 1/8000 seconds |
Continuous shutter rate | 4.4 frames per sec | 5.0 frames per sec |
Shutter priority | ||
Aperture priority | ||
Manual mode | ||
Exposure compensation | Yes | Yes |
Custom white balance | ||
Image stabilization | ||
Inbuilt flash | ||
Flash distance | no built-in flash | no built-in flash |
Flash settings | Auto Flash Discharge, Auto Flash + Red-eye Reduction, Flash On, Flash On + Red-eye Reduction, Slow-speed Sync, Slow-speed Sync + Red-eye, P-TTL, Trailing Curtain Sync, Contrast-control-sync, High-speed sync, Wireless sync | Auto, On, Off, Red-Eye, Slow Sync, Rear Curtain, Fill-in, Wireless |
External flash | ||
AE bracketing | ||
White balance bracketing | ||
Fastest flash synchronize | 1/200 seconds | 1/250 seconds |
Exposure | ||
Multisegment exposure | ||
Average exposure | ||
Spot exposure | ||
Partial exposure | ||
AF area exposure | ||
Center weighted exposure | ||
Video features | ||
Video resolutions | 1920 x 1080 (60i, 50i, 30p, 25p, 24p), 1280 x 720 (60p, 50p) | - |
Highest video resolution | 1920x1080 | None |
Video format | MPEG-4, H.264 | - |
Microphone support | ||
Headphone support | ||
Connectivity | ||
Wireless | Auto Flash Discharge, Auto Flash + Red-eye Reduction, Flash On, Flash On + Red-eye Reduction, Slow-speed Sync, Slow-speed Sync + Red-eye, P-TTL, Trailing Curtain Sync, Contrast-control-sync, High-speed sync, Wireless sync | None |
Bluetooth | ||
NFC | ||
HDMI | ||
USB | USB 2.0 (480 Mbit/sec) | USB 2.0 (480 Mbit/sec) |
GPS | Built-in | None |
Physical | ||
Environmental sealing | ||
Water proofing | ||
Dust proofing | ||
Shock proofing | ||
Crush proofing | ||
Freeze proofing | ||
Weight | 1010 grams (2.23 pounds) | 895 grams (1.97 pounds) |
Dimensions | 137 x 110 x 86mm (5.4" x 4.3" x 3.4") | 156 x 117 x 82mm (6.1" x 4.6" x 3.2") |
DXO scores | ||
DXO Overall rating | not tested | 79 |
DXO Color Depth rating | not tested | 23.7 |
DXO Dynamic range rating | not tested | 12.3 |
DXO Low light rating | not tested | 1431 |
Other | ||
Battery life | 670 images | 880 images |
Battery style | Battery Pack | Battery Pack |
Battery ID | D-LI90 | NP-FM500H |
Self timer | Yes (2 or 12 sec, custom) | Yes (2 or 10 sec) |
Time lapse shooting | ||
Type of storage | Dual SD/SDHC/SDXC (UHS-I) | Compact Flash (Type I or II), Memory Stick Duo / Pro Duo, UDMA Mode 5, Supports FAT12 / FAT16 / FAT32 |
Card slots | Dual | Dual |
Launch pricing | $1,737 | $2,736 |