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Pentax X90 vs Sony A850

Portability
69
Imaging
35
Features
34
Overall
34
Pentax X90 front
 
Sony Alpha DSLR-A850 front
Portability
54
Imaging
68
Features
60
Overall
64

Pentax X90 vs Sony A850 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
  • Revealed July 2010
Sony A850
(Full Review)
  • 25MP - Full frame Sensor
  • 3" Fixed Screen
  • ISO 200 - 3200 (Increase to 6400)
  • Sensor based Image Stabilization
  • 1/8000s Max Shutter
  • No Video
  • Sony/Minolta Alpha Mount
  • 895g - 156 x 117 x 82mm
  • Introduced April 2010
Photography Glossary

Pentax X90 vs Sony A850 Overview

Its time to look a bit more in depth at the Pentax X90 and Sony A850, one being a Small Sensor Superzoom and the latter is a Advanced DSLR by companies Pentax and Sony. There exists a significant gap among the image resolutions of the X90 (12MP) and A850 (25MP) and the X90 (1/2.3") and A850 (Full frame) boast totally different sensor size.

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The X90 was announced 3 months later than the A850 and they are both of a similar generation. Each of these cameras feature different body design with the Pentax X90 being a SLR-like (bridge) camera and the Sony A850 being a Mid-size SLR camera.

Before delving straight to a complete comparison, here is a concise introduction of how the X90 grades vs the A850 when it comes to portability, imaging, features and an overall rating.

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Reasons to pick Pentax X90 over the Sony A850

 X90 A850 

Reasons to pick Sony A850 over the Pentax X90

 A850 X90 
Screen size3"2.7"Bigger screen (+0.3")
Screen resolution922k230kSharper screen (+692k dot)

Common features in the Pentax X90 and Sony A850

 X90 A850 
IntroducedJuly 2010April 2010Same generation
Manual focus More accurate focus
Screen typeFixed Fixed Fixed screen
Selfie screen Neither offers selfie screen
Touch friendly screen Neither offers Touch friendly screen

Pentax X90 vs Sony A850 Physical Comparison

If you're intending to carry your camera frequently, you have to consider its weight and proportions. The Pentax X90 offers exterior measurements of 111mm x 85mm x 110mm (4.4" x 3.3" x 4.3") along with a weight of 428 grams (0.94 lbs) and the Sony A850 has measurements of 156mm x 117mm x 82mm (6.1" x 4.6" x 3.2") with a weight of 895 grams (1.97 lbs).

Contrast the Pentax X90 and Sony A850 in the new Camera with Lens Size Comparison Tool. Camera Size Comparison with Lenses

Do not forget, the weight of an Interchangeable Lens Camera will vary depending on the lens you are utilising at the time. Underneath is a front view sizing comparison of the X90 versus the A850.

Pentax X90 vs Sony A850 size comparison

Looking at dimensions and weight, the portability grade of the X90 and A850 is 69 and 54 respectively.

Pentax X90 vs Sony A850 top view buttons comparison

Pentax X90 vs Sony A850 Sensor Comparison

Quite often, it's difficult to visualise the contrast in sensor sizing just by viewing specs. The photograph underneath will give you a far better sense of the sensor measurements in the X90 and A850.

As you can plainly see, each of these cameras feature different megapixels and different sensor sizing. The X90 with its smaller sensor will make shooting shallower DOF harder and the Sony A850 will result in more detail with its extra 13 Megapixels. Higher resolution will also enable you to crop shots way more aggressively.

Pentax X90 vs Sony A850 sensor size comparison

Pentax X90 vs Sony A850 Screen and ViewFinder

Pentax X90 vs Sony A850 Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Pentax X90 Portrait photography advice
Sony A850 Portrait photography advice
29
manual focus
can't use external flash
MP count low (12MP)
very small sensor size (1/2.3")
does not have RAW support
72
has manual focus
MP count excellent (25 megapixels)
sensor size is large (Full frame)
exports RAW formats
does not have liveview
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Street Comparison

Street photography with Pentax X90
Street photography with Sony A850
45
built in image stabilization (Sensor-shift)
screen does not articulate
very small sensor size (1/2.3")
does not have RAW support
66
built in image stabilization (Sensor based)
sensor size is large (Full frame)
exports RAW formats
weather proofing
screen is fixed
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Sports Comparison

Pentax X90 Sports photography information
Sony A850 Sports photography information
42
excellent zoom range (26-676mm 26.0 x zoom)
built in image stabilization (Sensor-shift)
has tracking autofocus
MP count low (12MP)
very small sensor size (1/2.3")
does not have phase detect AF
71
great max shutter speed (1/8,000 seconds)
built in image stabilization (Sensor based)
MP count excellent (25 megapixels)
sensor size is large (Full frame)
weather proofing
has phase detect autofocus
does not have liveview
low fps (3.0 frames/s)
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Travel Comparison

Pentax X90 Travel photography information
Sony A850 Travel photography information
51
has built in flash
fairly wide (26mm)
very long zoom (676mm)
does not have Time Lapse recording
MP count low (12MP)
display isn't selfie friendly
sluggish maximum aperture (f2.8)
55
weather proofing
MP count excellent (25MP)
no Time Lapse recording
doesn't offer selfie friendly display
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Landscape Comparison

Pentax X90 Landscape photography advice
Sony A850 Landscape photography advice
35
manual focus
fairly wide (26mm)
built in image stabilization (Sensor-shift)
fixed lens (fixed lens mount)
sluggish maximum aperture (f2.8)
tiny screen (2.7 inches)
MP count low (12 megapixels)
very small sensor size (1/2.3")
does not have RAW support
does not have Time Lapse recording
73
has manual focus
switch lenses (Sony/Minolta Alpha mount)
nice screen size (3")
built in image stabilization (Sensor based)
MP count excellent (25MP)
sensor size is large (Full frame)
exports RAW formats
weather proofing
two card slots
does not have liveview
no Time Lapse recording
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Vlogging Comparison

Vlogging with Pentax X90
Vlogging with Sony A850
23
fairly wide (26mm)
built in image stabilization (Sensor-shift)
sluggish maximum aperture (f2.8)
display isn't selfie friendly
low video resolution (1280 x 720 pxls)
does not have external mic port
9
no video recording
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Pentax X90 vs Sony A850 Specifications

Detailed spec comparison table for Pentax X90 and Sony A850
 Pentax X90Sony Alpha DSLR-A850
General Information
Brand Pentax Sony
Model type Pentax X90 Sony Alpha DSLR-A850
Class Small Sensor Superzoom Advanced DSLR
Revealed 2010-07-06 2010-04-15
Physical type SLR-like (bridge) Mid-size SLR
Sensor Information
Processor Prime Bionz
Sensor type CCD CMOS
Sensor size 1/2.3" Full frame
Sensor dimensions 6.08 x 4.56mm 35.9 x 24mm
Sensor area 27.7mm² 861.6mm²
Sensor resolution 12MP 25MP
Anti alias filter
Aspect ratio 1:1, 4:3, 3:2 and 16:9 3:2 and 16:9
Maximum resolution 4000 x 3000 6048 x 4032
Maximum native ISO 6400 3200
Maximum boosted ISO - 6400
Lowest native ISO 80 200
RAW support
Autofocusing
Focus manually
AF touch
AF continuous
Single AF
Tracking AF
Selective AF
Center weighted AF
Multi area AF
AF live view
Face detect focusing
Contract detect focusing
Phase detect focusing
Total focus points 9 9
Lens
Lens mount type fixed lens Sony/Minolta Alpha
Lens zoom range 26-676mm (26.0x) -
Maximal aperture f/2.8-5.0 -
Macro focusing range 1cm -
Available lenses - 143
Crop factor 5.9 1
Screen
Display type Fixed Type Fixed Type
Display sizing 2.7" 3"
Display resolution 230k dots 922k dots
Selfie friendly
Liveview
Touch display
Display technology - TFT Xtra Fine color LCD
Viewfinder Information
Viewfinder type Electronic Optical (pentaprism)
Viewfinder coverage - 98 percent
Viewfinder magnification - 0.74x
Features
Lowest shutter speed 4 seconds 30 seconds
Highest shutter speed 1/4000 seconds 1/8000 seconds
Continuous shooting rate - 3.0 frames/s
Shutter priority
Aperture priority
Expose Manually
Exposure compensation Yes Yes
Change WB
Image stabilization
Integrated flash
Flash distance 9.10 m no built-in flash
Flash settings - Auto, On, Off, Red-Eye, Slow Sync, Rear Curtain, Fill-in, Wireless
Hot shoe
AE bracketing
WB bracketing
Highest flash synchronize - 1/250 seconds
Exposure
Multisegment metering
Average metering
Spot metering
Partial metering
AF area metering
Center weighted metering
Video features
Video resolutions 1280 x 720 (30, 15 fps), 640 x 480 (30, 15 fps), 320 x 240 (30, 15 fps) -
Maximum video resolution 1280x720 None
Video data format Motion JPEG -
Mic port
Headphone port
Connectivity
Wireless Eye-Fi Connected None
Bluetooth
NFC
HDMI
USB USB 2.0 (480 Mbit/sec) USB 2.0 (480 Mbit/sec)
GPS None None
Physical
Environment sealing
Water proofing
Dust proofing
Shock proofing
Crush proofing
Freeze proofing
Weight 428g (0.94 pounds) 895g (1.97 pounds)
Physical dimensions 111 x 85 x 110mm (4.4" x 3.3" x 4.3") 156 x 117 x 82mm (6.1" x 4.6" x 3.2")
DXO scores
DXO All around rating not tested 79
DXO Color Depth rating not tested 23.8
DXO Dynamic range rating not tested 12.2
DXO Low light rating not tested 1415
Other
Battery life - 880 pictures
Style of battery - Battery Pack
Battery ID D-L106 NP-FM500H
Self timer Yes (2 or 10 sec) Yes (2 or 10 sec)
Time lapse feature
Type of storage SD/SDHC, Internal Compact Flash (Type I or II), UDMA, Memory Stick Duo / Pro Duo
Card slots 1 Dual
Price at launch $350 $0