Digital camera channel 21 September is called the A55 ushered in a new era of digital photography, because the A55 adopted the "half-lens" (Translucent Mirror Technology) technology, to achieve a comparable professional SLR behind Jiao and continuous shooting capability.
More importantly, the technology to break through the single/single bottleneck of electro-photography, camera mode continuous auto focus, order status or encounter DV.Because unlike past all digital cameras, Sony will A55 named DSLT (Digital Single Lens Translucent Cameras), the Chinese translation of semi-permeable-reflector SLR.
However the name is clearly too a mouthful, so Sony as it took a more easy to remember name: single-camera.So what is a semi-permeable-reflector SLR? original SLR introduction to actions of reflectors, viewfinder and af is reflective plate down, shooting reflective plate lift, the optical path to photographic imaging components.
A55 mirror of semi-permeable type used, according to the spectrum of different, most of the light transmission of the Exmor CMOS HD, also on the reflection of light to a 15-point autofocus module responsible for AF action. Whether taking a static or dynamic images, reflectors are not actions, and therefore can faster AF speed and video filming a balance between the continuous AF.Sony this launch of the single-camera apart from the A55, there is a slightly lower number of A33, but the gap between the two cameras just pixels and continuous shooting speed (A55 is 1600 megapixels 10 pieces/per second continuous shooting, A33 is 1400 m pixel 7/second continuous shooting), however the prices of the A33 A55 cheaper than a thousand, it is clear that the more appropriate to focus on price/performance of the user to select.
But precisely because the gap between the two cameras are small, read the evaluation of the A55, also on the A33 familiar.
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