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Among the many greatest battles with mirrorless cameras gaining professional video options has been the best way to greatest work with log footage. Take into consideration how the primary mirrorless cameras with a real log profile had been caught with 8-bit footage, which might be problematic whenever you attempt to push the grade. This resulted in lots of people recommending overexposing and different nonsense.
Now, cameras just like the a7S III and FX3 function wonderful high quality codecs and newer log choices, so its one other studying curve to determine the best way to expose them. Working particularly with S-Log3 on the newest Sony cameras filmmaker Jacques Crafford has put collectively a pleasant information on correct publicity methods.
This S-Log3 publicity information will apply to even newer cameras, just like the a7 IV. Jacques really recommends utilizing this profile on a regular basis due to how significantly better it’s with regard to issues like dynamic vary. So, how must you use it?
There are a set of instruments out there to evaluate publicity:
Utilizing your eyes (Gamma Show Help)
Utilizing digicam’s metering modes
Utilizing zebras
Utilizing exterior monitor
Jacques doesn’t suggest utilizing your eyes on a regular basis since it’s removed from excellent, but additionally factors out that having an exterior monitor, whereas good, isn’t important to get began.
Working indoors or in managed gentle you should utilize your eyes together with the Gamma Show Help setting. This can apply a show LUT that makes the picture look “regular.” In case you are coming from monitoring footage this manner with different profiles you’ll really feel at dwelling, although you may wish to manually set show brightness to +2 for consistency.
For metering modes, you’ll want to persist with the Multi possibility because it gives normal metering of the complete picture. In case your shot is pretty balanced then the metering modes are a superb possibility. Typically, it has been beneficial to overexpose by +1.7 to +2.0. Nonetheless, on these newer cameras going with one thing nearer to +1.0 might be higher because it’ll higher characterize the pores and skin tones. Overexposing will prevent from some noise within the shadows, however you’ll hand over some vary within the highlights.
Picture Credit score: Sony
The place the metering modes don’t work is when you have extraordinarily brilliant or darkish areas filling a big portion of the shot. Particularly, brilliant highlights are an issue. Having the solar within the again or just a lightweight will trick the meter into considering it’s too brilliant. In these instances in the event you change to the spot meter you possibly can test precise spots on the picture, comparable to pores and skin tones, to extra precisely meter your shot.
If you wish to test how the complete picture seems to be and is uncovered you need to activate zebras. These will present up whenever you hit sure publicity ranges. In Jacques case, he makes use of C1 to set a zebra to point out at 50 with a +2 vary. This can enable you nail midtones as you possibly can watch the zebras present up and know you could be on the way in which to clipping in the event that they begin to disappear.
The C2 setting is for checking the highlights. The usual setting is 75 with a +2 vary. This exhibits that after your fundamental topic is exhibiting zebras you might be hitting the higher restrict. It would be best to bump down when they’re exhibiting on the principle topic, although having a little bit present isn’t the top of the world both.
Picture Credit score: Sony
That’s it for in-camera choices, however if you need even higher instruments you have to an exterior monitor. Most of those will provide waveforms and false coloration. False coloration paints colours over the complete picture representing completely different exposures. This manner you possibly can shortly establish which areas are brighter or darker and precise how brilliant or darkish they really are. Now you can also make extra exact changes on the fly.
Utilizing waveforms you possibly can see the publicity throughout the complete scene and when you have been utilizing it’s coloration grading work you’ll already know the place precisely you need your topic to be. It would be best to test the waveform earlier than you apply a LUT, although you also needs to test it out after as nicely.
Creating or utilizing a LUT could make the entire enhancing course of take a fraction of the time. It’ll get you almost there in the event you discover or have a definite look.
Do you’ve gotten any greatest practices for exposing S-Log3 footage?
[source: Jacques Crafford]
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