Reasons to choose K-1
Released in 2016, K-1 has about 862 mm² of sensor area, 36.4 MP effective resolution, and a 1,010 g body. Use these values to narrow the field, not as an overall image-quality score.
Side-by-side comparison
Pentax K-1
vs Sony Alpha A99 II
VS
Sensor area
862 mm²
K-1862 mm²
Alpha A99 II- Area ratio
- 1:1
- Absolute difference
- 0 mm²
- Relative difference
- 0%
The K-1 and Alpha A99 II have the same sensor area. Compare pixel density, sensor architecture, and release generation to understand likely image-quality differences.
Key specification differences
K-1MetricAlpha A99 II
36.4 MPEffective pixels42.4 MP
35.9 × 24Sensor35.9 × 24
4.87 µmPixel pitch4.51 µm
23.67 µm²Pixel area20.32 µm²
4.22 MP/cm²Pixel density4.92 MP/cm²
1Crop factor1
1,920 × 1,080Maximum video3,840 × 2,160
1,010 gWeight849 g
SD/SDHC/SDXC (UHS-I)StorageSD/SDHC/SDXC/MS PRO Duo
D-LI90 lithium-ion battery Li-ion batteryBatteryNP-FM500H lithium-ion battery 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-1 and Alpha A99 II have the same sensor area. The Alpha A99 II has the lighter body. The Alpha A99 II has the higher effective resolution. The K-1 and Alpha A99 II were both released in 2016. Also consider the lens system and subjects you shoot.
Reasons to choose Alpha A99 II
Released in 2016, Alpha A99 II has about 862 mm² of sensor area, 42.4 MP effective resolution, and a 849 g body. Use these values to narrow the field, not as an overall image-quality score.