A new version of the Filmic Pro app or the optional Cinematographer Kit will be released tomorrow. With the included, new
LogV2 function, Filmic wants to be able to get up to 2.5 f-stops more dynamic out of the built-in 8bit camera sensor than the standard readout actually provides. What sounds like magic can, like so much today, be traced back to complex calculations -- computational imaging.
According to Filmic, it has developed mathematical environment to process the luma and chroma signals of an image with 64-bit precision, and uses them to create a luma map from the image data coming from the sensor ("flattened 24-bit RGB vector"). Gamma values are then "reconstructed" from the brightness values (gamma vectorization), which are then mapped down into an 8-bit container. On some Android devices that support Gamma Curve Remapping by default, the process can be abbreviated as it seems and the gamma processing of the sensor can be interfered with early.
With LogV2, iPhone XR, XS and XS Max shots are said to have a dynamic range of more than 12 stops (at base ISO) -- whether the result in terms of dynamic range can actually compete with a Panasonic GH5s, as Filmic claims, remains to be seen.
A Filmic LUT Pack also appears to convert Log V2 footage to the Rec709 color space with a quick click (compatible with
Adobe Premiere Pro, Apple Final Cut Pro X and Blackmagic Davinci Resolve). Log V2 is supposed to work on iOS devices from A9 as well as most Android devices with Camera2 API support. The Cinematographer Kit Add-on costs 8,49 Euro.