Yes it's was the 4K version. We didn't use IR filters. All in studio, controling the light.
In our test we shoot a color card ( Chroma Du monde) at 400 ISO, with a light for 5,6 diaph -mesuring the incident light- (medium grey at 43%) , and we make under-exposition and over-exposition....( to 22 and 2,1). in the shadow you start seeing the sensor (vertical and horizontal lines ), and in the high light over 2 stop you can't do anything...
I make a music video with the 4K , in APR422HQ, because of the running time that we have for making the post production. We make some shot at 800 ISO, and 60 frames. Well you start having noise, a lot of noise, and a strange flicker with natural light....you can move all the preset and the angle of the shutter, ther is nothing to do...Perhaps it's was this model in particular having problems. I don't like the footage of this camera. And when i was in the color correction, the skin of carribean people go quickly to the green....you have to make mask after mask....
And other strange thing, the APR was better in relation with the RAW footage....
I would like to try the 4,6K and see what happening.

I was making some test during January, about dynamic range, and color. The results are just terrible. The red is over satureted, and all the other colors are de-satureted. If you put a vetorscope you will see it. And the test of dynamic range give me 6 stops....when they say 15 on the paper....I waiting for my friend to send me the results and i can send it to you.

I hope that the 15 stop are real this time.....and the space color is going to be the correct one....

i'm here waiting Kodak 8mm

Pro : meet some great DoP, miceal chapman, jose-luis alcaine, ricardo aronovich.......

Just some good assistant.