Alexa 35’s new log curve captures extended dynamic range—but behaves differently as a working space
The Alexa 35 records up to 17 stops of dynamic range through ARRI’s new LogC4 encoding, compared to the 14-15 stops in LogC3. But that same curve that enables the extended capture range creates some friction when you sit down to grade.
If you’ve worked with Alexa 35 footage and felt like your usual grading moves weren’t landing quite right, you’re not imagining things. The reason lies in how LogC4’s transform function differs from the familiar LogC3—and why you might want to consider alternative working spaces for your color grading sessions.
“LogC4 isn’t a great working space. It’s a great capture space… But it’s not a good working space because of the way [it] behaves with these controls that we’re used to in Resolve.”
Peder Morgenthaler, Colorist
Key Takeaways
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