S-Log vs. D-Log - What's the difference?

S

squire387

New member
As stated in the subject line, what's the difference between shooting something S-Log versus D-Log? How are they different in post?
 
Every camera company in the world (or most) have their own form(s) of LOG gamma curves that they implement into their cameras to obtain the most dynamic range possible (or at least a certain amount). The results vary based on a number of variables, but mainly the sensor being used and the processing and engineering that is taking place in a particular piece of hardware. Some companies also have several versions of their LOG gammas, i.e. Sony with S-Log, S-Log2, and S-Log3.

You'll only be able to shoot S-Log on Sony cameras and D-Log on the DJI drones. (C-Logs on Canon, etc.)

Visually, LOGs, all attempt to handle a scene in a similar fashion by providing you the most stops of exposure they possibly can (overall low-contrast, flat look), but every camera analyzes an image differently (data compression, colors, etc), and you'll therefore see different results when applying the same manipulation across the board on a variety of camera systems.
 
For every Log curve format there is only one mathematically correct inversion LUT that restores accurate linear values.
 
Like mathematically to the decimal?

Because there are dozens and dozens of LUTs that look great on various LOG formats.
 
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