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Pentax K-x vs Pentax H90

Portability
69
Imaging
52
Features
47
Overall
50
Pentax K-x front
 
Pentax Optio H90 front
Portability
93
Imaging
35
Features
24
Overall
30

Pentax K-x vs Pentax H90 Key Specs

Pentax K-x
(Full Review)
  • 12MP - APS-C Sensor
  • 2.7" Fixed Display
  • ISO 100 - 6400 (Increase to 12800)
  • Sensor based Image Stabilization
  • 1/6000s Max Shutter
  • 1280 x 720 video
  • Pentax KAF2 Mount
  • 580g - 123 x 92 x 68mm
  • Revealed December 2009
Pentax H90
(Full Review)
  • 12MP - 1/2.3" Sensor
  • 2.7" Fixed Screen
  • ISO 80 - 6400
  • Sensor-shift Image Stabilization
  • 1280 x 720 video
  • 28-140mm (F3.5-5.9) lens
  • 153g - 101 x 65 x 28mm
  • Revealed January 2010
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Pentax K-x vs Pentax H90 Overview

In this article, we will be evaluating the Pentax K-x and Pentax H90, one is a Entry-Level DSLR and the latter is a Small Sensor Compact and they are both produced by Pentax. The resolution of the K-x (12MP) and the H90 (12MP) is relatively comparable but the K-x (APS-C) and H90 (1/2.3") come with totally different sensor dimensions.

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The K-x was announced very close to the H90 and they are of a similar generation. Both of the cameras offer different body type with the Pentax K-x being a Compact SLR camera and the Pentax H90 being a Compact camera.

Before we go through a complete comparison, below is a quick view of how the K-x scores against the H90 in the way of portability, imaging, features and an overall mark.

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Reasons to pick Pentax K-x over the Pentax H90

 K-x H90 

Reasons to pick Pentax H90 over the Pentax K-x

 H90 K-x 

Common features in the Pentax K-x and Pentax H90

 K-x H90 
RevealedDecember 2009January 2010Same generation
Focus manually More precise focus
Screen typeFixed Fixed Fixed screen
Screen sizing2.7"2.7"Equivalent screen sizing
Screen resolution230k230kSame screen resolution
Selfie screen Absent selfie screen
Touch friendly screen Absent Touch friendly screen

Pentax K-x vs Pentax H90 Physical Comparison

When you are aiming to travel with your camera frequently, you'll need to factor its weight and dimensions. The Pentax K-x comes with exterior dimensions of 123mm x 92mm x 68mm (4.8" x 3.6" x 2.7") and a weight of 580 grams (1.28 lbs) whilst the Pentax H90 has dimensions of 101mm x 65mm x 28mm (4.0" x 2.6" x 1.1") having a weight of 153 grams (0.34 lbs).

Take a look at the Pentax K-x and Pentax H90 in the latest Camera and Lens Size Comparison Tool. Camera Size Comparison with Lenses

Take into account, the weight of an Interchangeable Lens Camera will change dependant on the lens you use at that moment. Underneath is the front view measurements comparison of the K-x versus the H90.

Pentax K-x vs Pentax H90 size comparison

Factoring in dimensions and weight, the portability rating of the K-x and H90 is 69 and 93 respectively.

Pentax K-x vs Pentax H90 top view buttons comparison

Pentax K-x vs Pentax H90 Sensor Comparison

Sometimes, it is difficult to visualise the gap in sensor dimensions purely by checking out specs. The image below might provide you a stronger sense of the sensor sizes in the K-x and H90.

All in all, the two cameras offer the same exact megapixels albeit not the same sensor dimensions. The K-x offers the bigger sensor which will make achieving bokeh simpler.

Pentax K-x vs Pentax H90 sensor size comparison

Pentax K-x vs Pentax H90 Screen and ViewFinder

Pentax K-x vs Pentax H90 Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Pentax K-x Portrait photography info
Pentax H90 Portrait photography info
63
focusing manually
decent sensor size (APS-C)
provides face detect focus
saves RAW formats
megapixel count low (12MP)
27
you can focus manually
manual mode not possible
can't use external flash
resolution not great (12MP)
tiny sensor size (1/2.3")
no RAW format
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Street Comparison

Pentax K-x Street photography details
Pentax H90 Street photography details
67
built in image stabilization (Sensor based)
decent sensor size (APS-C)
saves RAW formats
screen does not articulate
56
image stabilization (Sensor-shift)
screen is fixed
tiny sensor size (1/2.3")
no RAW format
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Sports Comparison

Pentax K-x Sports photography advice
Pentax H90 Sports photography advice
61
great max shutter speed (1/6,000s)
built in image stabilization (Sensor based)
decent sensor size (APS-C)
better than average battery (1,900 per charge)
sensor has phase detect auto focus
very slow continuous shooting (5.0 frames/s)
megapixel count low (12 megapixels)
31
image stabilization (Sensor-shift)
offers tracking autofocus
painfully slow continuous shooting (1.0 frames per second)
no shutter priority
resolution not great (12MP)
tiny sensor size (1/2.3")
no phase detect AF
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Travel Comparison

Pentax K-x Travel photography details
Pentax H90 Travel photography details
54
better than average battery (1,900 CIPA)
has built in flash
doesn't have Timelapse function
megapixel count low (12MP)
doesn't have selfie friendly screen
57
built-in flash
fairly wide (28mm)
doesn't have Timelapse recording
resolution not great (12 megapixels)
display is not selfie friendly
somewhat slow max aperture (f3.5)
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Landscape Comparison

Pentax K-x Landscape photography advice
Pentax H90 Landscape photography advice
61
focusing manually
change lenses (Pentax KAF2 mount)
built in image stabilization (Sensor based)
decent sensor size (APS-C)
saves RAW formats
better than average battery (1,900 per charge)
small screen (2.7")
megapixel count low (12 megapixels)
doesn't have Timelapse function
36
you can focus manually
fairly wide (28mm)
image stabilization (Sensor-shift)
can't change lens (fixed lens mount)
somewhat slow max aperture (f3.5)
tiny screen (2.7 inch)
manual mode not possible
resolution not great (12MP)
tiny sensor size (1/2.3")
no RAW format
doesn't have Timelapse recording
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Vlogging Comparison

Vlogging with Pentax K-x
Vlogging with Pentax H90
27
built in image stabilization (Sensor based)
provides face detect focus
doesn't have selfie friendly screen
video quality not great (1280 x 720 pixels)
doesn't have microphone port
28
fairly wide (28mm)
image stabilization (Sensor-shift)
somewhat slow max aperture (f3.5)
display is not selfie friendly
low res video (1280 x 720 resolution)
doesn't have external microphone port
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Pentax K-x vs Pentax H90 Specifications

Detailed spec comparison table for Pentax K-x and Pentax H90
 Pentax K-xPentax Optio H90
General Information
Manufacturer Pentax Pentax
Model type Pentax K-x Pentax Optio H90
Class Entry-Level DSLR Small Sensor Compact
Revealed 2009-12-23 2010-01-25
Body design Compact SLR Compact
Sensor Information
Chip Prime Prime
Sensor type CMOS CCD
Sensor size APS-C 1/2.3"
Sensor measurements 23.6 x 15.8mm 6.17 x 4.55mm
Sensor surface area 372.9mm² 28.1mm²
Sensor resolution 12 megapixels 12 megapixels
Anti alias filter
Aspect ratio 3:2 4:3 and 16:9
Max resolution 4288 x 2848 4000 x 3000
Max native ISO 6400 6400
Max enhanced ISO 12800 -
Min native ISO 100 80
RAW photos
Autofocusing
Focus manually
Autofocus touch
Continuous autofocus
Single autofocus
Tracking autofocus
Selective autofocus
Center weighted autofocus
Autofocus multi area
Autofocus live view
Face detect focus
Contract detect focus
Phase detect focus
Total focus points 11 9
Lens
Lens support Pentax KAF2 fixed lens
Lens zoom range - 28-140mm (5.0x)
Maximal aperture - f/3.5-5.9
Macro focusing range - 10cm
Amount of lenses 151 -
Crop factor 1.5 5.8
Screen
Range of display Fixed Type Fixed Type
Display diagonal 2.7 inches 2.7 inches
Display resolution 230 thousand dot 230 thousand dot
Selfie friendly
Liveview
Touch friendly
Display tech TFT LCD monitor -
Viewfinder Information
Viewfinder type Optical (pentamirror) None
Viewfinder coverage 96% -
Viewfinder magnification 0.57x -
Features
Min shutter speed 30 secs 4 secs
Max shutter speed 1/6000 secs 1/2000 secs
Continuous shutter speed 5.0 frames per sec 1.0 frames per sec
Shutter priority
Aperture priority
Manually set exposure
Exposure compensation Yes -
Change white balance
Image stabilization
Integrated flash
Flash distance 16.00 m 4.00 m
Flash settings Auto, On, Off, Red-Eye, Slow Sync, Rear curtain, Wireless Auto, On, Off, Red-eye, Soft
Hot shoe
AE bracketing
White balance bracketing
Max flash sync 1/180 secs -
Exposure
Multisegment metering
Average metering
Spot metering
Partial metering
AF area metering
Center weighted metering
Video features
Video resolutions 1280 x 720 (24 fps), 640 x 416 (24 fps) 1280 x 720 (30, 15 fps), 640 x 480 (30, 15 fps), 320 x 240 (30, 15 fps)
Max video resolution 1280x720 1280x720
Video data format Motion JPEG Motion JPEG
Microphone jack
Headphone jack
Connectivity
Wireless None Eye-Fi Connected
Bluetooth
NFC
HDMI
USB USB 2.0 (480 Mbit/sec) USB 2.0 (480 Mbit/sec)
GPS None None
Physical
Environment seal
Water proofing
Dust proofing
Shock proofing
Crush proofing
Freeze proofing
Weight 580g (1.28 lb) 153g (0.34 lb)
Dimensions 123 x 92 x 68mm (4.8" x 3.6" x 2.7") 101 x 65 x 28mm (4.0" x 2.6" x 1.1")
DXO scores
DXO Overall rating 72 not tested
DXO Color Depth rating 22.8 not tested
DXO Dynamic range rating 12.5 not tested
DXO Low light rating 811 not tested
Other
Battery life 1900 pictures -
Battery form Battery Pack -
Battery ID 4 x AA D-LI68
Self timer Yes (2 or 12 sec) Yes (2 or 10 sec)
Time lapse feature
Type of storage SD/SDHC card SD/SDHC, Internal
Storage slots Single Single
Price at release $600 $150