The Sony Alpha SLT-A99 is lighter and smaller than the Canon 5D Mark III and the Nikon D800, the two competitors, who like them as full-format cameras for the price under 3.000 euros position. However, the Sony Alpha SLT-A99 differs fundamentally in its design with a fixed, semi-transparent SLT mirror and an electronic, high-resolution viewfinder. In addition to the format advantage, this offers decisive advantages in the LiveView and Video mode, as the phase autofocus can remain active even after a while and can quickly and accurately strike the sharpness.
Image quality
The Sony Alpha SLT-A99 captures more than 20 percent more of its 24-megapixel full-format sensor in the RAW test: With JPEG, our measurements reached maxima of about 1,680 LP / BH, up to 2,116 LP / BH. Higher MTF25 and MTF50 values also indicate that the contrasts in the image remain above 25% and 50% of the output contrast, respectively, up to higher frequency ranges (fine structures).
And the lower kurtosis values are here for a better fine-tuning compared to JPEG. However, the more powerful luminance noise the Sony Alpha SLT-A99 costs in the upper sensitivity range dynamic.
Buying advice: Editors' favorites - DSLRs up to 3,000 euros
Note: This is the RAW test of the Sony Alpha SLT-A99, which focuses solely on the image quality of the camera in RAW mode (more about our test procedures and the new RAW test). For all technical details of the camera and a comprehensive review, including the evaluation of processing and operation, read our JPEG test of the Sony Alpha SLT-A99.
Sony Alpha 99 RAW 1.7
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