The Lighthouse FREE Power Grade Look
This is a power Grade that can be imported into Davinci Resolve to achieve the similar orthochromatic look that 'The Lighthouse' has.
The Power Grade uses the built-in grain effect from Davinci Resolve, so non-studio owners will have to use a grain overlay or another plugin that contains a grain effect.
When applying this power grade to footage, you may find it sometimes unbalanced as all footage doesn't usually have the same exposure or contrast and so on. To fix this, it would be best to configure the LGG node till you find it balanced and accurate to the film's 'look'.
Reference screen grab from the lighthouse:
'The Lighthouse' Power Grade before/after:
Before:
After:
A power grade that you can fully adjust yourself to help you achieve the orthochromatic look