Reasons to choose K-S1
Released in 2014, K-S1 has about 367 mm² of sensor area, 20.12 MP effective resolution, and a 558 g body. Use these values to narrow the field, not as an overall image-quality score.
Side-by-side comparison
Pentax K-S1
vs Pentax K-S2
VS
Sensor area
367 mm²
K-S1367 mm²
K-S2- Area ratio
- 1:1
- Absolute difference
- 0 mm²
- Relative difference
- 0%
The K-S1 and K-S2 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-S1MetricK-S2
20.12 MPEffective pixels20.12 MP
23.5 × 15.6Sensor23.5 × 15.6
4.27 µmPixel pitch4.27 µm
18.22 µm²Pixel area18.22 µm²
5.49 MP/cm²Pixel density5.49 MP/cm²
1.53Crop factor1.53
1,920 × 1,080Maximum video1,920 × 1,080
558 gWeight678 g
SD/SDHC/SDXCStorageSD/SDHC/SDXC
Rechargeable Lithium-ion Battery D-LI109 Li-ion batteryBatteryLi-Ion battery D-LI109 Li-ion battery
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-S1 and K-S2 have the same sensor area. The K-S1 has the lighter body. The K-S1 and K-S2 have the same effective resolution. The K-S2 is the newer release. Also consider the lens system and subjects you shoot.
Reasons to choose K-S2
Released in 2015, K-S2 has about 367 mm² of sensor area, 20.12 MP effective resolution, and a 678 g body. Use these values to narrow the field, not as an overall image-quality score.