How much dynamic range does the Sony A58 offer?

According to measurements carried out by DXO Mark, the sensor in the Sony Alpha SLT-A58 provides a maximum of 12.5 EV of dynamic range (DR). DR is defined as the ratio between the highest and lowest brightness a camera can capture. A value of 12 EV or above is considered excellent.

High dynamic range of a camera sensor is particularly desirable for scenes with a mix of very bright and very dark parts, such as in some landscape photography settings. It helps to avoid that highlights get washed out or that detail in shadows is lost.

Sensor specs and performance

The table below compares the sensor specs of the Sony A58 to those of several similar cameras. The reported DXO values are indicators of the sensor's imaging quality (higher is better). In addition to dynamic range (DXO Landscape), the listing also covers color depth (DXO Portrait) and high-ISO noise (DXO Sports). Larger sensor cameras tend to outperform cameras of the same generation that are equipped with a smaller imager. On the other hand, larger sensors are more expensive and require bigger and heavier lenses than smaller light receptors.

Sensor Characteristics

#		Camera Model	Sensor Class	Resolution (MP)	Horiz. Pixels	Vert. Pixels	Video Format	DXO Portrait	DXO Landscape	DXO Sports	DXO Overall
1.		Sony A58	APS-C	19.8	5456	3632	1080/60i	23.3	12.5	753	74
2.		Canon SL1	APS-C	17.9	5184	3456	1080/30p	21.8	11.3	843	63
3.		Canon T5i	APS-C	17.9	5184	3456	1080/30p	21.7	11.2	681	61
4.		Nikon D3300	APS-C	24.0	6000	4000	1080/60p	24.3	12.8	1385	82
5.		Nikon D3200	APS-C	24.1	6016	4000	1080/30p	24.1	13.2	1131	81
6.		Pentax K-S1	APS-C	20.0	5472	3648	1080/30p	23.5	13.0	1061	78
7.		Sony A68	APS-C	24.0	6000	4000	1080/60i	24.1	13.5	701	79
8.		Sony A77 II	APS-C	24.0	6000	4000	1080/60p	24.4	13.4	1013	82
9.		Sony A5100	APS-C	24.0	6000	4000	1080/60p	23.8	12.7	1347	80
10.		Sony A6000	APS-C	24.0	6000	4000	1080/60p	24.1	13.1	1347	82
11.		Sony A3000	APS-C	19.8	5456	3632	1080/60i	23.7	12.8	1068	78

In the United States, the A58 was initially launched in February 2013 at a price of $599.

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Camera to camera comparisons

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