Reasons to choose K-r
Released in 2010, K-r has about 373 mm² of sensor area, 12.4 MP effective resolution, and a 598 g body. Use these values to narrow the field, not as an overall image-quality score.
Side-by-side comparison
Pentax K-r
vs Pentax K-x
VS
Sensor area
373 mm²
K-r373 mm²
K-x- Area ratio
- 1:1
- Absolute difference
- 0 mm²
- Relative difference
- 0%
The K-r and K-x have the same sensor area. Compare pixel density, sensor architecture, and release generation to understand likely image-quality differences.
These cameras were released 1 years apart. Consider sensor generation when comparing pixel metrics.
Key specification differences
K-rMetricK-x
12.4 MPEffective pixels12.4 MP
23.6 × 15.8Sensor23.6 × 15.8
5.48 µmPixel pitch5.48 µm
30.07 µm²Pixel area30.07 µm²
3.33 MP/cm²Pixel density3.33 MP/cm²
1.52Crop factor1.52
—Maximum video—
598 gWeight515 g
SDHC, Secure DigitalStorageSDHC, Secure Digital
Lithium-Ion D-LI109 rechargeable battery Li-ion batteryBattery4 x AA batteries (Lithium, Alkaline or Ni-MH)
Amber marks the value that is generally preferable in this comparison context. It is not an overall camera score.
How to choose between these cameras
The K-r and K-x have the same sensor area. The K-x has the lighter body. The K-r and K-x have the same effective resolution. The K-r is the newer release. Also consider the lens system and subjects you shoot.
Reasons to choose K-x
Released in 2009, K-x has about 373 mm² of sensor area, 12.4 MP effective resolution, and a 515 g body. Use these values to narrow the field, not as an overall image-quality score.