Here is 13stops of grey my Sigma fp can capture. I’ve done a DR test with the help of my 13 stops HDR monitor, photoshop, and a spotmeter. Definetly there is a room for a stop in highlight with a Davinci highlight recovery. So, it’s about 14 stops the camera can capture at ISO 100-800.
Very important addition. Keep in mind that it is a pure RAW which is a rough information from the sensor, what means it doesn't have any noise reduction applied. If you apply some NR to this files you get extra stops in shadows. You always get less when shoot in raw than when shoot in mov in other cameras and it makes some in camera NR. To my optimistic opinion you can get about 15 stops from this camera with a highlight recovery and NR applied. ENJOY this wonderful creation in a super compact form factor.
The test has been done in a dark room. I've set my monitor to 100% brightness and then used Photoshop to make grey screens equal to 13 stops of light with the help of a spotmeter, that measures exposure in stops. Then I've shot all the grey screens exposing my camera to the brightest one. I've put everything in Davinci together and transformed linear CinemaDNG files to Arri Alexa LogC gamma and color space with the help of a color transform tool. It gave me 13 stops of visible stops. The last two darkest stops are a bit noisy if you try to push it a bit. With a little help of NR they becomes absolutely clean and can be pushed about 3 stops higher.
Sigma fp to Alexa LUTs tutorial: [ Ссылка ]
Here you can BUY Sigma fp to Alexa LUTs: [ Ссылка ]
