General

compared to recent entry-level DSLRs
"The new Pentax K-x occupies the sweet spot between the entry-level K-m and prosumer K-7 cameras."
photographyblog.com | talking about the camera's overall-performance
Brand
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Pentax
Lowest price
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$1,495.00
below average below average
Announced
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September 2009
below average below average

Sensor

"The 12.4 megapixel JPEG images were a little soft straight out of the camera at the default sharpening setting"
photographyblog.com | talking about the camera's image-quality
Type
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CMOS
Crop factor
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1.5x
unique unique
Megapixels
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12.2 MP
below average below average
Light sensitivity
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6,400 ISO
below average below average
Light sensitivity (boost)
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12,800 ISO
Sensor cleaning
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Yes

Sensor (Advanced)

compared to recent entry-level DSLRs
True resolution
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12.2 MP
below average below average
Native resolution
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4288 × 2848
below average below average
Pixel size
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30.5 µm²
unique unique

Screen

Type
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LCD
Size
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2.7"
below average below average
Resolution
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230k dots
below average below average
Touch screen
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No
below average below average
Flips out
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No
below average below average
Live view
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Yes

Lenses

compared to recent entry-level DSLRs
Lens availability
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113 lenses
below average below average
Lens mount
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Pentax K

Form factor

"This little DSLR actually feels quite impressive, despite its budget price-tag and all-plastic construction"
photographyblog.com | talking about the camera's build-quality
Size
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123×92×68 mm
unique unique
Depth
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2.7"
unique unique
Weight
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580 g
Interchangeable lenses
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Yes
Waterproof
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No
Weather sealed
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No
below average below average
Built-in focus motor
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Yes

Viewfinder

compared to recent entry-level DSLRs
Type
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Pentamirror
below average below average
Viewfinder size
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0.56x
Coverage
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96%

Movies

Format
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720p @ 24fps
below average below average
Supports 24p
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Yes
High-speed framerate
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None
External mic jack
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No
below average below average
Autofocus
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None
All formats
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  1. 640 x 416 @ 24fps
  2. 720p @ 24fps

Features

compared to recent entry-level DSLRs
"Image stabilisation via the camera body is a great feature that works very well when hand-holding the camera in low-light conditions."
photographyblog.com | talking about the camera's image-stabilization
Panorama
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No
HDR
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Yes
3D
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No
Image stabilization
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  1. Sensor shift
Supports RAW
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Yes
GPS
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No
below average below average

Performance

Startup delay
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600 ms
below average below average
Shutter lag
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97 ms
unique unique
Battery life
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420 shots
below average below average
Continuous shooting
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4.7 fps
below average below average

Focus system

compared to recent entry-level DSLRs
Autofocus
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Phase detection
above average above average
Focus points
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11
below average below average
Cross type focus points
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9

Shutter

Max
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1/6000s
above average above average
Min
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30s

Flash

compared to recent entry-level DSLRs
Built-in flash
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Yes
Popup
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Yes
above average above average
External connection
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Yes

Storage

Storage slots
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1
Supported formats
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  1. SD
  2. SDHC

DXO Mark Scores

compared to recent entry-level DSLRs
"Noise is well controlled by the Pentax K-x, starting to appear at ISO 1600 and becoming more easily detectable at the faster settings of ISO 3200 and 6400."
photographyblog.com | talking about the camera's iso-noise
Image quality
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72.0
Color depth
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22.8 bits
Dynamic range
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12.5 EV
Low light performance
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811 ISO