Sony annouced the SLT A55 & A33
本帖最後由 siumaibb 於 2010-8-25 13:54 編輯
dpreview: Sony SLT A55 in-depth review
The SLT-A55's translucent mirror design and full-time live view make it easier to implement a video mode than it would be on a 'traditional' DSLR, which needs to flip its mirror out of the way before it can start recording. It also means that the A55 can use its phase-detect AF sensor where 'traditional' SLRs and interchangeable lens cameras have to make do with the slower contrast detect systems. The SLT-A55 is Sony's first SLR (and, after the NEX-series, its second large sensor camera) to come with a movie recording function.
The camera offers 1080i video in AVCHD format (which offers excellent quality with efficient compression and is most suitable for viewing on a HD television set) or 1440 x 1080 pixels in the less efficient but more readily sharable MPEG-4 format. Despite the pixel count the MP4 video is still captured in the 16:9 aspect ratio and is usually interpolated up to 1920x1080 when played back so doesn't appear stretched or squashed.......
* A hybrid camera between a DSLR & a EVIL, I think it is born for video capturing rather than still image taking...... |
發表於 2010-8-25 13:49
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