Reasons to choose Alpha DSLR-A550
Released in 2009, Alpha DSLR-A550 has about 365 mm² of sensor area, 14.2 MP effective resolution, and a 632 g body. Use these values to narrow the field, not as an overall image-quality score.
Side-by-side comparison
Sony Alpha DSLR-A550
vs Sony Alpha SLT-A37
VS
Sensor area
365 mm²
Alpha DSLR-A550367 mm²
Alpha SLT-A37- Area ratio
- 1:1
- Absolute difference
- 2 mm²
- Relative difference
- 0.4%
The Alpha SLT-A37 has the larger sensor area. More area usually means greater light-gathering potential, though real image quality still depends on sensor architecture and generation.
These cameras were released 3 years apart. Consider sensor generation when comparing pixel metrics.
Key specification differences
Alpha DSLR-A550MetricAlpha SLT-A37
14.2 MPEffective pixels16.1 MP
23.4 × 15.6Sensor23.5 × 15.6
5.07 µmPixel pitch4.77 µm
25.71 µm²Pixel area22.77 µm²
3.89 MP/cm²Pixel density4.39 MP/cm²
1.54Crop factor1.53
—Maximum video—
632 gWeight506 g
SD/ SDHC, Memory Stick Pro Duo/ Pro-HG DuoStorageSD/SDHC/SDXC/Memory Stick Pro Duo/ Pro-HG Duo
Lithium-Ion NP-FM500H rechargeable battery Li-ion batteryBatteryRechargeable NP-FW50 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 Alpha SLT-A37 has the larger sensor area. The Alpha SLT-A37 has the lighter body. The Alpha SLT-A37 has the higher effective resolution. The Alpha SLT-A37 is the newer release. Also consider the lens system and subjects you shoot.
Reasons to choose Alpha SLT-A37
Released in 2012, Alpha SLT-A37 has about 367 mm² of sensor area, 16.1 MP effective resolution, and a 506 g body. Use these values to narrow the field, not as an overall image-quality score.