7100 as full frame?

Started Sep 3, 2014 | Discussions thread
coudet Veteran Member • Posts: 4,007
Re: A step back

dg8r wrote:

And yet Sony produced, in order, the Alpha 7 (Mirrorless line of cameras) at 24MP, then the Alpha 7s at 36MP, and then for some reason the Alpha 7r at 12 MP. All three are full frame. What is the advantage of decreasing the MP count?

It's because of video. 12mp A7s can sample the entire sensor at slower framerates. From Sony themselves:

With the new α7S camera, the high-speed read out of the 35mm full-frame image sensor combined with the high-speed processing of the BIONZ X processor enables significant improvements in video quality.

These powerful components allow the camera to process data from all of the sensor's pixels and output stunning HD and 4K (QFHD 3840 x 2160 pixels) video3 while utilizing the full-width of the sensor. In addition to the benefits for low-light shooting, the read out of all pixels frees the video from aliasing, moiré and false color artifacts (as opposed to pixel binning) to achieve the highest quality video.

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