Hdr-sdr conversion – Sony E 16mm f/2.8 Lens User Manual
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HDR-SDR Conversion
This function is available with the optional “PVML-HSX1” license (sold separately). HDR signals displayed
on the screen can be converted to SDR signals with dynamic range conversion. It also supports color
space (color gamut) conversion for ITU-R BT.2020 and ITU-R BT.709.
AIR Matching (Artistic Intent Render Matching) function
Performs OETF mutual conversion on HDR signals while maintaining the same image representation
(appearance) on the monitor.
When the AIR Matching function is ON, the HDR signal is converted so that the image on the monitor
connected to the input side and the image on the monitor connected to the output side look the same.
Even in the mutual conversion of HDR and SDR signals, the AIR Matching function can maintain the same
conversion characteristics between the appearance of HDR images and the appearance of SDR images
regardless of the OETF of the HDR signal. Because of these characteristics, the "SR Live workflow" uses
the AIR Matching function for mutual conversion between HDR and SDR signals. When using "SR Live
workflow," set the AIR Matching function to ON.
When the AIR Matching function is OFF, the conversion is performed faithfully to the OETF (Optical
Electro Transfer Function) set for input and output. Whether or not the image representation on the
monitor will be the same is not taken into account.
Display Referred conversion
Converts HDR signals to SDR signals while maintaining the same image representation (appearance) on
the monitor (However, signals with an SDR output level exceeding 109% will be clipped to 109%, causing
highlight clipping, etc.). The image quality adjustment settings other than “Knee,” “HDR SDR Gain,” “SDR
White Clip” are fixed (e.g. Off, 0.0).
HDR Look function
HDR Look is a setting that determines the basic Look (appearance) of an HDR image. This fundamental
setting that determines how the image captured by cameras is represented on the monitor as an HDR
image, and can be selected from “Live,” “Mild,” and “Natural.”
Live
This characteristic is based on the Traditional Look derived from current SDR images. It offers a strong
sense of contrast and high color rendering, resulting in powerful images. The D-Range of the actual
image brightness is wide, so that high brightness is not easily crushed by imaging.
Mild
This is similar to the characteristic of Live, but has a milder image characteristic overall than Live.
Natural
This is the original Look of HLG and has milder colors. The actual sensitivity setting is reduced, but it is
advantageous for S/N(available only when the OETF setting for HDR input is ITU-R BT.2100 (HLG)).