Reasons to choose Alpha a5100
Released in 2014, Alpha a5100 has about 367 mm² of sensor area, 24.3 MP effective resolution, and a 283 g body. Use these values to narrow the field, not as an overall image-quality score.
Side-by-side comparison
Sony Alpha a5100
vs Sony Cyber-shot DSC-QX1
VS
Sensor area
367 mm²
Alpha a5100357 mm²
Cyber-shot DSC-QX1- Area ratio
- 1.03:1
- Absolute difference
- 9 mm²
- Relative difference
- 2.6%
The Alpha a5100 has the larger sensor area. More area usually means greater light-gathering potential, though real image quality still depends on sensor architecture and generation.
Key specification differences
Alpha a5100MetricCyber-shot DSC-QX1
24.3 MPEffective pixels20.1 MP
23.5 × 15.6Sensor23.2 × 15.4
3.88 µmPixel pitch4.22 µm
15.09 µm²Pixel area17.78 µm²
6.63 MP/cm²Pixel density5.63 MP/cm²
1.53Crop factor1.55
1,920 × 1,080Maximum video1,920 × 1,080
283 gWeight216 g
SD/SDHC/SDXC, Memory Stick Pro Duo/Pro-HG DuoStorageMemory Stick Micro, microSD, microSDHC, microSDXC
NP-FW50BatteryNP-FW50
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 Alpha a5100 has the larger sensor area. The Cyber-shot DSC-QX1 has the lighter body. The Alpha a5100 has the higher effective resolution. The Alpha a5100 and Cyber-shot DSC-QX1 were both released in 2014. Also consider the lens system and subjects you shoot.
Reasons to choose Cyber-shot DSC-QX1
Released in 2014, Cyber-shot DSC-QX1 has about 357 mm² of sensor area, 20.1 MP effective resolution, and a 216 g body. Use these values to narrow the field, not as an overall image-quality score.