85
L2. Original Gamma (S-Cinetone)
This is the default setting and selects the S-Cinetone gamma
curve which produces a film-like look with a very smooth
highlight roll-off.
The S-Cinetone gamma curve behaves slightly differently
to most conventional gamma curves such as Rec-709. This
behaviour allows you to adjust the amount of contrast in your
footage through small changes in exposure.
The contrast in the S-Cinetone gamma curve changes as you
go up in brightness. In the shadow and darker areas of the
image contrast is increased. Starting from around 70IRE or
70% brightness a gradual change in the gamma curve occurs
that gradually reduces contrast all the way up to the clipping
point.
This roll-off results in smooth looking highlights In addition
S-Cinetone’s highlight roll off has been carefully designed
to retain details and textures even in the brightest highlights
in a manner similar to film. Most conventional gammas
have an aggressive knee or highlight roll off that often lacks
texture and as a result this gives them that classic video
look. S-Cinetone avoids this and renders highlights in a very
pleasing manner. While it does have a very large dynamic
range, around 460%, about 11 stops, if you really do need the
greatest possible dynamic range you should still consider
using the FX9’s CineEI mode and shooting with S-Log3.
L. Gamma Settings In Custom Mode
