S-Log is a gamma curve with a wide dynamic range optimized under the assumption that grading will be performed in the post-production process. S-Log3 allows for better reproduction of gradation characteristics in shadows and the mid-tone range than S-Log2. It has characteristics closer to those of scanned film.
S-Log3 is recommended in general. If S-Log3 does not offer sufficient gradation in the mid- to high-luminance range, try S-Log2.
When using S-Log, we recommend checking the image quality including grading in advance by test-shooting. When grading videos recorded with S-Log, technical knowledge is required.
Pro LOG is a new flat film gamma profile which brings EOSHD Pro Color optimisations to LOG format footage.
It is compatible with a range of LUTs in post production, in addition there are 25 EOSHD Film Looks (LUTs) included, designed especially for Pro LOG.
Also included is an optimised S-LOG 2 profile and further LUTs designed exclusively by EOSHD for all S-LOG 2 footage!
A flat film gamma profile, Pro LOG is easier to grade than S-LOG and works at low ISO sensitive such as ISO 200, without the upper-minimum ISO limitations of S-LOG (which can sometimes be as high as ISO 3200).
Advantages of Pro LOG Cinema
Works at any ISO sensitivity (for example ISO 200)
Easier to grade than S-LOG2
Similar curve to C-LOG and compatible with LUTs designed for Canon LOG
Enables use of exclusive EOSHD Film Looks only available with Pro LOGIncludes advantages of EOSHD Pro Colour, such as reduced colour clipping (i.e. prevents blue highlights turning turquoise of green), deeper and truer reds and better skin-tonesSignificantly decreased banding compared to S-LOG3.
Advantages of Pro LOG S
Maximum dynamic range
A more forgiving colour gamut than Sony’s default S-LOG profiles
Based on SLOG-2 gamma, therefore works with any LUT designed for S-LOG2
Enables use of EOSHD Film Looks for S-LOG 2 supplied with this guideIncludes advantages of EOSHD Pro Colour, but the final colour depends heavily on the LUT used in post
Pro LOG is designed to work with the following models:
Sony A7S II
Sony A7R II
Sony A99 II
Sony A7 II
Sony A6300 / A6500
Sony RX100 IV / VSony RX10 II / III / IV
Sony cameras which lack advanced picture profile capabilities are not compatible (such as the RX100 M1 to M3, A9, old A7R, A6000 and RX10 M1).