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Pentax KP vs Sony A900

Portability
61
Imaging
68
Features
76
Overall
71
Pentax KP front
 
Sony Alpha DSLR-A900 front
Portability
54
Imaging
67
Features
62
Overall
65

Pentax KP vs Sony A900 Key Specs

Pentax KP
(Full Review)
  • 24MP - APS-C Sensor
  • 3" Tilting Display
  • ISO 100 - 819200
  • Sensor based 5-axis Image Stabilization
  • 1/6000s Max Shutter
  • 1920 x 1080 video
  • Pentax KAF2 Mount
  • 703g - 132 x 101 x 76mm
  • Released January 2017
Sony A900
(Full Review)
  • 25MP - Full frame Sensor
  • 3" Fixed Screen
  • ISO 100 - 6400
  • Sensor based Image Stabilization
  • 1/8000s Max Shutter
  • No Video
  • Sony/Minolta Alpha Mount
  • 895g - 156 x 117 x 82mm
  • Revealed October 2008
  • Successor is Sony A99
Photography Glossary

Pentax KP vs Sony A900 Overview

Its time to examine more closely at the Pentax KP vs Sony A900, both Advanced DSLR digital cameras by brands Pentax and Sony. The image resolution of the KP (24MP) and the A900 (25MP) is relatively similar but the KP (APS-C) and A900 (Full frame) come with different sensor measurements.

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The KP was introduced 8 years after the A900 which is quite a significant gap as far as tech is concerned. The two cameras offer the identical body type (Mid-size SLR).

Before diving straight into a more detailed comparison, below is a simple introduction of how the KP scores against the A900 when it comes to portability, imaging, features and an overall mark.

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Reasons to pick Pentax KP over the Sony A900

 KP A900 
RevealedJanuary 2017October 2008Newer by 101 months
Screen typeTiltingFixed Tilting screen

Reasons to pick Sony A900 over the Pentax KP

 A900 KP 
Screen resolution922k921kClearer screen (+1k dot)

Common features in the Pentax KP and Sony A900

 KP A900 
Manually focus Very exact focus
Screen sizing3"3"Equivalent screen measurements
Selfie screen Neither has selfie screen
Touch friendly screen Lacking Touch friendly screen

Pentax KP vs Sony A900 Physical Comparison

In case you're going to travel with your camera often, you'll have to consider its weight and size. The Pentax KP has outer measurements of 132mm x 101mm x 76mm (5.2" x 4.0" x 3.0") along with a weight of 703 grams (1.55 lbs) while the Sony A900 has specifications of 156mm x 117mm x 82mm (6.1" x 4.6" x 3.2") having a weight of 895 grams (1.97 lbs).

Analyze the Pentax KP vs Sony A900 in the all new Camera and Lens Size Comparison Tool. Camera Size Comparison with Lenses

Don't forget, the weight of an Interchangeable Lens Camera will change dependant on the lens you are utilising at that moment. Underneath is the front view over all size comparison of the KP compared to the A900.

Pentax KP vs Sony A900 size comparison

Factoring in size and weight, the portability rating of the KP and A900 is 61 and 54 respectively.

Pentax KP vs Sony A900 top view buttons comparison

Pentax KP vs Sony A900 Sensor Comparison

Usually, it's tough to picture the difference between sensor dimensions only by reviewing a spec sheet. The pic underneath may offer you a stronger sense of the sensor sizing in the KP and A900.

Clearly, both of those cameras offer different megapixel count and different sensor dimensions. The KP using its tinier sensor is going to make achieving shallower depth of field more difficult and the Sony A900 will offer extra detail using its extra 1MP. Higher resolution can also enable you to crop pictures a little more aggressively. The newer KP provides a benefit in sensor innovation.

Pentax KP vs Sony A900 sensor size comparison

Pentax KP vs Sony A900 Screen and ViewFinder

Pentax KP vs Sony A900 Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Pentax KP as a Portrait photography camera
Sony A900 as a Portrait photography camera
80
you can focus manually
decent sensor resolution (24 megapixels)
good sensor size (APS-C)
supports face detection autofocus
saves RAW formats
72
has manual focus
megapixel count amazing (25 megapixels)
great sensor size (Full frame)
saves RAW files
no liveview
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Street Comparison

Pentax KP Street photography advice
Sony A900 Street photography advice
76
tilting screen
image stabilization (Sensor based 5-axis)
good sensor size (APS-C)
saves RAW formats
environment proof
great ISO range (819,200)
66
has image stabilization (Sensor based)
great sensor size (Full frame)
saves RAW files
weather proofing
screen does not articulate
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Sports Comparison

Pentax KP as a Sports photography camera
Sony A900 as a Sports photography camera
72
great max shutter speed (1/6,000 seconds)
silent mode (1/24,000 seconds)
image stabilization (Sensor based 5-axis)
decent sensor resolution (24MP)
good sensor size (APS-C)
supports tracking autofocus
environment proof
bad battery (390 CIPA)
doesn't have phase detect autofocus
71
high shutter speed (1/8,000s)
has image stabilization (Sensor based)
megapixel count amazing (25MP)
great sensor size (Full frame)
weather proofing
sensor has phase detect AF
no liveview
low frames per second (5.0 frames per second)
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Travel Comparison

Travel photography with Pentax KP
Travel photography with Sony A900
62
environment proof
decent sensor resolution (24 megapixels)
built-in flash
bad battery (390 CIPA)
screen is not selfie friendly
55
weather proofing
megapixel count amazing (25 megapixels)
does not have Time Lapse mode
display isn't selfie friendly
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Landscape Comparison

Pentax KP as a Landscape photography camera
Sony A900 as a Landscape photography camera
78
you can focus manually
swap lenses (Pentax KAF2 mount)
pretty good screen size (3 inch)
image stabilization (Sensor based 5-axis)
decent sensor resolution (24MP)
good sensor size (APS-C)
great ISO range (819,200)
saves RAW formats
environment proof
bad battery (390 per charge)
73
has manual focus
interchangeable lenses (Sony/Minolta Alpha mount)
screen is a good size (3 inches)
has image stabilization (Sensor based)
megapixel count amazing (25MP)
great sensor size (Full frame)
saves RAW files
weather proofing
2 card slots
no liveview
does not have Time Lapse mode
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Vlogging Comparison

Pentax KP Vlogging info
Sony A900 Vlogging info
35
image stabilization (Sensor based 5-axis)
supports face detection autofocus
video res high (1920 x 1080 pixels)
has external microphone support
screen is not selfie friendly
9
lack of video recording
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Pentax KP vs Sony A900 Specifications

Detailed spec comparison table for Pentax KP and Sony A900
 Pentax KPSony Alpha DSLR-A900
General Information
Brand Pentax Sony
Model Pentax KP Sony Alpha DSLR-A900
Type Advanced DSLR Advanced DSLR
Released 2017-01-26 2008-10-22
Physical type Mid-size SLR Mid-size SLR
Sensor Information
Powered by PRIME IV Bionz
Sensor type CMOS CMOS
Sensor size APS-C Full frame
Sensor dimensions 23.5 x 15.6mm 35.9 x 24mm
Sensor surface area 366.6mm² 861.6mm²
Sensor resolution 24MP 25MP
Anti aliasing filter
Aspect ratio 3:2 3:2 and 16:9
Highest resolution 6016 x 4000 6048 x 4032
Highest native ISO 819200 6400
Min native ISO 100 100
RAW pictures
Autofocusing
Focus manually
AF touch
Continuous AF
AF single
Tracking AF
AF selectice
Center weighted AF
AF multi area
Live view AF
Face detect focusing
Contract detect focusing
Phase detect focusing
Number of focus points 27 9
Cross focus points 25 -
Lens
Lens mounting type Pentax KAF2 Sony/Minolta Alpha
Number of lenses 151 143
Crop factor 1.5 1
Screen
Type of display Tilting Fixed Type
Display size 3 inches 3 inches
Display resolution 921k dots 922k dots
Selfie friendly
Liveview
Touch screen
Display technology - TFT Xtra Fine color LCD
Viewfinder Information
Viewfinder type Optical (pentaprism) Optical (pentaprism)
Viewfinder coverage 100 percent 100 percent
Viewfinder magnification 0.63x 0.74x
Features
Slowest shutter speed 30 seconds 30 seconds
Maximum shutter speed 1/6000 seconds 1/8000 seconds
Maximum quiet shutter speed 1/24000 seconds -
Continuous shooting rate 7.0fps 5.0fps
Shutter priority
Aperture priority
Manually set exposure
Exposure compensation Yes Yes
Change WB
Image stabilization
Built-in flash
Flash range 6.00 m (at ISO 100) no built-in flash
Flash modes Auto, auto w/redeye reduction, flash on w/redeye reduction, slow sync, trailing curtain sync, manual, wireless Auto, On, Off, Red-Eye, Slow Sync, Rear Curtain, Fill-in, Wireless
Hot shoe
AEB
White balance bracketing
Maximum flash synchronize - 1/250 seconds
Exposure
Multisegment
Average
Spot
Partial
AF area
Center weighted
Video features
Supported video resolutions 1920 x 1080 (60i, 30p) -
Highest video resolution 1920x1080 None
Video format MPEG-4, H.264 -
Mic support
Headphone support
Connectivity
Wireless Built-In None
Bluetooth
NFC
HDMI
USB USB 2.0 (480 Mbit/sec) USB 2.0 (480 Mbit/sec)
GPS Optional None
Physical
Environment sealing
Water proof
Dust proof
Shock proof
Crush proof
Freeze proof
Weight 703g (1.55 lbs) 895g (1.97 lbs)
Dimensions 132 x 101 x 76mm (5.2" x 4.0" x 3.0") 156 x 117 x 82mm (6.1" x 4.6" x 3.2")
DXO scores
DXO All around score not tested 79
DXO Color Depth score not tested 23.7
DXO Dynamic range score not tested 12.3
DXO Low light score not tested 1431
Other
Battery life 390 photos 880 photos
Style of battery Battery Pack Battery Pack
Battery model D-LI109 NP-FM500H
Self timer Yes (2 or 12 secs) Yes (2 or 10 sec)
Time lapse feature
Storage type SD/SDHC/SDXC (UHS-I supported) Compact Flash (Type I or II), Memory Stick Duo / Pro Duo, UDMA Mode 5, Supports FAT12 / FAT16 / FAT32
Card slots One Two
Price at launch $747 $2,736