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Pentax X90 vs Sony A9 II

Portability
69
Imaging
35
Features
34
Overall
34
Pentax X90 front
 
Sony Alpha A9 Mark II front
Portability
62
Imaging
75
Features
93
Overall
82

Pentax X90 vs Sony A9 II Key Specs

Pentax X90
(Full Review)
  • 12MP - 1/2.3" Sensor
  • 2.7" Fixed Display
  • ISO 80 - 6400
  • Sensor-shift Image Stabilization
  • 1280 x 720 video
  • 26-676mm (F2.8-5.0) lens
  • 428g - 111 x 85 x 110mm
  • Released July 2010
Sony A9 II
(Full Review)
  • 24MP - Full frame Sensor
  • 3" Tilting Display
  • ISO 100 - 51200 (Raise to 204800)
  • Sensor based 5-axis Image Stabilization
  • 1/8000s Maximum Shutter
  • 3840 x 2160 video
  • Sony E Mount
  • 678g - 129 x 96 x 76mm
  • Revealed October 2019
  • Old Model is Sony A9
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Pentax X90 vs Sony A9 II Overview

Following is a comprehensive review of the Pentax X90 vs Sony A9 II, former is a Small Sensor Superzoom while the other is a Pro Mirrorless by rivals Pentax and Sony. There is a considerable difference among the resolutions of the X90 (12MP) and A9 II (24MP) and the X90 (1/2.3") and A9 II (Full frame) offer different sensor sizing.

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The X90 was introduced 10 years prior to the A9 II which is a fairly large difference as far as camera tech is concerned. Both cameras have different body design with the Pentax X90 being a SLR-like (bridge) camera and the Sony A9 II being a SLR-style mirrorless camera.

Before delving into a comprehensive comparison, here is a simple summation of how the X90 matches up against the A9 II for portability, imaging, features and an overall score.

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Reasons to pick Pentax X90 over the Sony A9 II

 X90 A9 II 

Reasons to pick Sony A9 II over the Pentax X90

 A9 II X90 
RevealedOctober 2019July 2010More modern by 112 months
Display typeTiltingFixed Tilting display
Display dimensions3"2.7"Larger display (+0.3")
Display resolution1440k230kSharper display (+1210k dot)
Touch display Easily navigate

Common features in the Pentax X90 and Sony A9 II

 X90 A9 II 
Manually focus More precise focus
Selfie screen Neither includes selfie screen

Pentax X90 vs Sony A9 II Physical Comparison

For anybody who is going to carry around your camera often, you'll need to factor its weight and volume. The Pentax X90 features outer measurements of 111mm x 85mm x 110mm (4.4" x 3.3" x 4.3") accompanied by a weight of 428 grams (0.94 lbs) whilst the Sony A9 II has sizing of 129mm x 96mm x 76mm (5.1" x 3.8" x 3.0") along with a weight of 678 grams (1.49 lbs).

Look at the Pentax X90 vs Sony A9 II in our brand new Camera plus Lens Size Comparison Tool. Camera Size Comparison with Lenses

Remember that, the weight of an ILC will vary depending on the lens you have attached at the time. Underneath is a front view measurement comparison of the X90 vs the A9 II.

Pentax X90 vs Sony A9 II size comparison

Looking at size and weight, the portability grade of the X90 and A9 II is 69 and 62 respectively.

Pentax X90 vs Sony A9 II top view buttons comparison

Pentax X90 vs Sony A9 II Sensor Comparison

Oftentimes, it is tough to picture the difference in sensor sizes just by researching technical specs. The image here may give you a greater sense of the sensor sizing in the X90 and A9 II.

As you can tell, the two cameras have different resolutions and different sensor sizes. The X90 with its smaller sensor is going to make achieving shallower depth of field more difficult and the Sony A9 II will provide you with more detail using its extra 12MP. Greater resolution can also help you crop images a bit more aggressively. The more aged X90 will be behind in sensor tech.

Pentax X90 vs Sony A9 II sensor size comparison

Pentax X90 vs Sony A9 II Screen and ViewFinder

Pentax X90 vs Sony A9 II Screen and Viewfinder comparison
Photography Glossary

Photography Type Scores

Portrait Comparison

Pentax X90 Portrait photography information
Sony A9 II Portrait photography information
29
you can focus manually
external flash not possible
low resolution (12MP)
very small sensor (1/2.3")
does not have RAW files
85
manual focus
megapixel count good (24 megapixels)
great sensor size (Full frame)
offers face detection focusing
exports RAW formats
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Street Comparison

Pentax X90 as a Street photography camera
Sony A9 II as a Street photography camera
45
has image stabilization (Sensor-shift)
fixed screen
very small sensor (1/2.3")
does not have RAW files
78
tilting screen
built in image stabilization (Sensor based 5-axis)
great sensor size (Full frame)
exports RAW formats
features focus by touch
environment proof
great ISO range (51,200)
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Sports Comparison

Pentax X90 as a Sports photography camera
Sony A9 II as a Sports photography camera
42
long zoom range (26-676mm 26.0 x zoom)
has image stabilization (Sensor-shift)
comes with tracking autofocus
low resolution (12 megapixels)
very small sensor (1/2.3")
does not have phase detect AF
87
max shutter speed is good (1/8,000 seconds)
quiet mode (1/32,000 seconds)
fast continuous shooting (20.0 frames per second)
built in image stabilization (Sensor based 5-axis)
megapixel count good (24MP)
great sensor size (Full frame)
offers tracking autofocus
environment proof
good battery power (690 CIPA)
supports phase detect AF
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Travel Comparison

Pentax X90 as a Travel photography camera
Sony A9 II as a Travel photography camera
51
has built in flash
fairly wide (26mm)
great reach (676mm)
missing Timelapse recording
low resolution (12 megapixels)
display is not selfie friendly
slow max aperture (f2.8)
73
good battery power (690 shots)
environment proof
has bluetooth
features focus by touch
megapixel count good (24MP)
display is not selfie friendly
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Landscape Comparison

Pentax X90 as a Landscape photography camera
Sony A9 II as a Landscape photography camera
35
you can focus manually
fairly wide (26mm)
has image stabilization (Sensor-shift)
can't switch lens (fixed lens mount)
slow max aperture (f2.8)
small screen (2.7")
low resolution (12 megapixels)
very small sensor (1/2.3")
does not have RAW files
missing Timelapse recording
86
manual focus
interchangeable lenses (Sony E mount)
screen is a good size (3 inches)
built in image stabilization (Sensor based 5-axis)
megapixel count good (24 megapixels)
great sensor size (Full frame)
great ISO range (51,200)
exports RAW formats
environment proof
good battery power (690 per charge)
2 card slots
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Vlogging Comparison

Pentax X90 Vlogging details
Sony A9 II Vlogging details
23
fairly wide (26mm)
has image stabilization (Sensor-shift)
slow max aperture (f2.8)
display is not selfie friendly
low video resolution (1280 x 720 pixels)
missing external microphone support
36
screen is touchscreen
built in image stabilization (Sensor based 5-axis)
offers face detection focusing
high video quality (3840 x 2160 pixels)
comes with external microphone support
display is not selfie friendly
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Pentax X90 vs Sony A9 II Specifications

Detailed spec comparison table for Pentax X90 and Sony A9 II
 Pentax X90Sony Alpha A9 Mark II
General Information
Manufacturer Pentax Sony
Model type Pentax X90 Sony Alpha A9 Mark II
Category Small Sensor Superzoom Pro Mirrorless
Released 2010-07-06 2019-10-03
Physical type SLR-like (bridge) SLR-style mirrorless
Sensor Information
Powered by Prime BIONZ X
Sensor type CCD BSI-CMOS
Sensor size 1/2.3" Full frame
Sensor measurements 6.08 x 4.56mm 35.6 x 23.8mm
Sensor area 27.7mm² 847.3mm²
Sensor resolution 12 megapixels 24 megapixels
Anti alias filter
Aspect ratio 1:1, 4:3, 3:2 and 16:9 3:2
Full resolution 4000 x 3000 6000 x 4000
Max native ISO 6400 51200
Max boosted ISO - 204800
Minimum native ISO 80 100
RAW data
Minimum boosted ISO - 50
Autofocusing
Manual focusing
AF touch
AF continuous
AF single
AF tracking
Selective AF
AF center weighted
Multi area AF
AF live view
Face detect focusing
Contract detect focusing
Phase detect focusing
Total focus points 9 693
Lens
Lens support fixed lens Sony E
Lens zoom range 26-676mm (26.0x) -
Max aperture f/2.8-5.0 -
Macro focusing range 1cm -
Number of lenses - 121
Focal length multiplier 5.9 1
Screen
Type of display Fixed Type Tilting
Display size 2.7" 3"
Resolution of display 230 thousand dots 1,440 thousand dots
Selfie friendly
Liveview
Touch display
Viewfinder Information
Viewfinder Electronic Electronic
Viewfinder resolution - 3,686 thousand dots
Viewfinder coverage - 100%
Viewfinder magnification - 0.78x
Features
Lowest shutter speed 4 secs 30 secs
Highest shutter speed 1/4000 secs 1/8000 secs
Highest quiet shutter speed - 1/32000 secs
Continuous shooting rate - 20.0fps
Shutter priority
Aperture priority
Manual mode
Exposure compensation Yes Yes
Custom WB
Image stabilization
Inbuilt flash
Flash distance 9.10 m no built-in flash
Flash modes - Flash off, Autoflash, Fill-flash, Slow Sync., Rear Sync., Red-eye reduction, Wireless, Hi-speed sync
External flash
AE bracketing
WB bracketing
Exposure
Multisegment
Average
Spot
Partial
AF area
Center weighted
Video features
Supported video resolutions 1280 x 720 (30, 15 fps), 640 x 480 (30, 15 fps), 320 x 240 (30, 15 fps) 3840 x 2160 @ 30p / 100 Mbps, XAVC S, MP4, H.264, Linear PCM
Max video resolution 1280x720 3840x2160
Video file format Motion JPEG MPEG-4, AVCHD, H.264
Microphone support
Headphone support
Connectivity
Wireless Eye-Fi Connected Built-In
Bluetooth
NFC
HDMI
USB USB 2.0 (480 Mbit/sec) USB 3.1 Gen 1 (5 GBit/sec)
GPS None None
Physical
Environmental sealing
Water proofing
Dust proofing
Shock proofing
Crush proofing
Freeze proofing
Weight 428 gr (0.94 lb) 678 gr (1.49 lb)
Physical dimensions 111 x 85 x 110mm (4.4" x 3.3" x 4.3") 129 x 96 x 76mm (5.1" x 3.8" x 3.0")
DXO scores
DXO All around rating not tested not tested
DXO Color Depth rating not tested not tested
DXO Dynamic range rating not tested not tested
DXO Low light rating not tested not tested
Other
Battery life - 690 photographs
Style of battery - Battery Pack
Battery ID D-L106 NP-FZ100
Self timer Yes (2 or 10 sec) Yes (2, 5, 10 secs + continuous, 3 or 5 frames)
Time lapse shooting
Storage type SD/SDHC, Internal Dual SD/SDHC/SDXC slots (UHS-II compatible)
Card slots 1 Dual
Retail price $350 $4,498