Do GH4 full pixel readout when shooting video full hd?
In this preview:
http://www.eoshd.com/content/11934/panasonic-gh4-preview
4K from a nearly full pixel readout of the sensor, internal recording
My feedback to Panasonic was to give us the full sensor 4.6K readout and let us scale it to 4K in post as the reduced sensor size is perhaps a little disappointing. I’m told Panasonic had much internal discussion over whether to take a 1:1 pixel readout of the sensor for 4K video, or to take the full sensor and scale (zoom) it down. The latter technique entails a drop of image quality because we’re back to pixel binning again. In the end they used the same technique as Canon on the 1D C – optimal image quality, reduced recording area – and it seems to pay off looking at the output.
In this review:
http://www.eoshd.com/content/12771/panasonic-gh4-review
...excellent sensor with full pixel readout...
What is correct?
For example about Sony RX100 Mk3:
http://www.sony.net/Products/di/en-gb/products/c3jk/feature.html?contentsTop=1
"Full-pixel readout reduces artefacts
By using the power and speed of the BIONZ X processing engine to read the data from all of the image sensor's pixels at high speed, artefacts are effectively suppressed so that a smooth, high-resolution image is reproduced."
But Panasonic do not say about GH4 so on his site.
