Little sister to the A55, the A33 uses the same semi-transparent mirror for continuous AF during video capture, as well as a 6-fps burst rate and super-fast AF. Its imaging proved noisier than the A55's in our tests, though.
At a time when many new interchangeable-lens cameras have been forgoing reflex mirrors altogether, Sony’s new Alpha 55 (and Alpha 33) take a radically different approach. Instead of ditching the mirror—and with it, speedy, reliable autofocus—Sony gave these two DSLRs a semi-transparent mirror that doesn’t flip up and down. The result: Cameras that can autofocus continuously while recording high-definition video, and fire off stills at high burst rates—and that keep the existing Alpha lensmount for compatibility with the entire Sony lens catalog.
|Camera Category:||Interchangeable-lens Compact|
|Fastest Shutter Speed:||1/4000 second|
|Slowest Shutter Speed:||30 seconds|
|Display Size:||3.0 inches|
|Display Resolution:||921600 pixels|
|Minimum ISO:||100 ISO|
|Maximum ISO:||1600 ISO|
|In-Body Image Stablization:|
|Media Type:||Secure Digital (SD) |
Secure Digital High Capacity (SDHC)
Secure Digital Expanded Capacity (SDXC)
|Maximum Video Resolution:||1080p|
|AF in Video Mode:||Yes|
|Wireless Flash Trigger:||No|