Reasons to choose K-7
Released in 2009, K-7 has about 365 mm² of sensor area, 14.6 MP effective resolution, and a 750 g body. Use these values to narrow the field, not as an overall image-quality score.
Side-by-side comparison
Pentax K-7
vs Sony Alpha NEX-C3
VS
Sensor area
365 mm²
K-7365 mm²
Alpha NEX-C3- Area ratio
- 1:1
- Absolute difference
- 0 mm²
- Relative difference
- 0%
The K-7 and Alpha NEX-C3 have the same sensor area. Compare pixel density, sensor architecture, and release generation to understand likely image-quality differences.
These cameras were released 2 years apart. Consider sensor generation when comparing pixel metrics.
Key specification differences
K-7MetricAlpha NEX-C3
14.6 MPEffective pixels16.2 MP
23.4 × 15.6Sensor23.4 × 15.6
5 µmPixel pitch4.75 µm
25 µm²Pixel area22.53 µm²
4 MP/cm²Pixel density4.44 MP/cm²
1.54Crop factor1.54
—Maximum video—
750 gWeight225 g
SD/SDHC/MMCStorageSD/ SDHC/SDXC, Memory Stick Pro Duo/ Pro-HG Duo
Lithium-Ion D-LI90 rechargeable battery Li-ion batteryBatteryLithium-Ion NP-FW50 rechargeable 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-7 and Alpha NEX-C3 have the same sensor area. The Alpha NEX-C3 has the lighter body. The Alpha NEX-C3 has the higher effective resolution. The Alpha NEX-C3 is the newer release. Also consider the lens system and subjects you shoot.
Reasons to choose Alpha NEX-C3
Released in 2011, Alpha NEX-C3 has about 365 mm² of sensor area, 16.2 MP effective resolution, and a 225 g body. Use these values to narrow the field, not as an overall image-quality score.