CameraLore
Archive illustration for Pentax K-x

Quick facts

Full name: Pentax K-x

Original position: Camera; original market position is not yet verifiedProduction status: Production status not verified
Regional aliases
No verified regional aliases
Similar models to distinguish
K-7K-rK-5Alpha SLT-A35
Editorial guidance, not a verified specificationWhy it is still searched

People still search for Pentax K-x to verify its exact model, specifications, and place among comparable cameras.

Core specifications

Release year
2009 · Released about 17 years ago
Sensor
23.6 × 15.8 mm CMOS
Effective resolution
12.4 MP
Lens
—
Zoom
—
Weight
515 g
Battery
4 x AA batteries (Lithium, Alkaline or Ni-MH)
Storage
SDHC, Secure Digital
View full specifications
Editorial guidance, not a verified specification

Who it may suit

Useful for model identification and specification research; suitability depends on condition, lenses, and the intended subject.

What to check before buying used

The checks below are editorial guidance. Verify the individual camera and seller information before buying.

  • Inspect the body, screen, doors, seals, and tripod socket for impact or moisture damage.
  • Test every button, dial, flash, screen, and viewfinder.
  • Photograph a plain bright surface to check for sensor dust, dead pixels, or damage.
  • Confirm the battery holds charge and that a compatible charger is included or available.
  • Test a supported memory card and inspect the card slot for bent pins or read errors.
  • Inspect the battery compartment and contacts for leakage or corrosion.

Sensor metrics

Diagonal
28.4 mm

Sensor diagonal

√(23.6² + 15.8²) = 28.4 mm

Calculated from sensor width and height using the Pythagorean theorem.

Surface area
373 mm²

Sensor surface area

23.6 × 15.8 ≈ 373 mm²

A larger area usually offers more space to collect light, though image quality also depends on sensor generation.

Pixel pitch
5.48 µm

Pixel pitch

23.6 ÷ 4,304 × 1000 = 5.48 µm

Pixel pitch is the distance between the centers of adjacent pixels. This result assumes square pixels.

Pixel area
30.07 µm²

Pixel area

5.48² = 30.07 µm²

Theoretical pixel area is the square of pixel pitch and does not subtract physical gaps between pixels.

Pixel density
3.33 MP/cm²

Pixel density

12.4 MP ÷ 373 mm² ≈ 3.33 MP/cm²

Higher density means more pixels per unit area. It does not represent image quality on its own.

Actual sensor size

Rectangles use their physical proportions. Calibrate your display to approximate real-world size.

Calibrate screen size

Enter your display diagonal so sensor rectangles are shown closer to their physical size.

23.6 × 15.8 mm

Full specifications

Imaging

Effective pixels
12.4 MP
Total pixels
12.9 MP
Sensor
23.6 × 15.8 mm CMOS
Calculated resolution
4,304 × 2,881
Maximum image
4,288 × 2,428
Crop factor
1.52

Exposure & viewing

ISO
100–12,800
Viewfinder
Optical viewfinder
Display
2.7 in / 230,000 dots
Lens mount
—

Video & storage

Maximum video
—
Storage media
SDHC, Secure Digital
Battery
4 x AA batteries (Lithium, Alkaline or Ni-MH)

Body

Weight
515 g
Dimensions
122.5 × 91.5 × 67 mm
Release year
2009

Wikidata

Aperture Priority
Yes
Battery
4 x AA batteries (Lithium, Alkaline or Ni-MH)
Brand
Pentax
Built In Flash
✓
Crop Factor
1.52
Depth Of Field
simulate →
Digital Zoom
No
Dimensions
122.5 x 91.5 x 67 mm
Effective Megapixels
12.40
Exposure Compensation
±3 EV (in 1/3 EV, 1/2 EV steps)
External Flash
✓
Focal Length 35mm Equiv
—
Gps
—
Hdmi
—
Iso
Auto, 100 - 12800
Macro Focus Range
—
Manual Focus
✓
Max Aperture
—
Max Aperture 35mm Equiv
n/a
Max Image Resolution
4288 x 2428
Max Shutter Speed
1/6000 sec
Metering
Centre weighted, Multi-segment, Spot
Min Shutter Speed
30 sec
Model
K-x
Normal Focus Range
—
Optical Zoom
—
Raw Support
—
Screen Resolution
230,000 dots
Screen Size
2.7"
Sensor Resolution
4299 x 2885
Sensor Size
23.6 x 15.8 mm
Sensor Type
CMOS
Shutter Priority
Yes
Storage Types
SDHC, Secure Digital
Total Megapixels
12.90
Usb
USB 2.0 (480 Mbit/sec)
Video Capture
—
Viewfinder
Optical (pentamirror)
Weight
515 g
White Balance Presets
9
Wireless
—
Year
2009

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