Gear Talk > Camera Talk
Lloyd Chambers: Important Post
Michael Erlewine:
http://diglloyd.com/
Lloyd Chambers has an important observation, that many cameras, including the Nikon D810, have a filter that cuts of the color violet at around 420mm, which results in all our images being slightly yellowish because the violet has been removed.
My question is: how do we compensate or remedy this in post?
Bjørn Rørslett:
We had the similar filtration "built-in" with colour films - nobody complained then, so why now? Although we typically consider sunlight "white" it is really pretty biased towards blue-green and blue, so a slight warming of the colour balance usually is what we strive for anyway. Also, in order to cut away unwanted UV without having too strong dependence on incoming light angles, starting in the violet region is a necessity.
Just shoot a reference of a Color Checker Passport or similar at the onset of the shoot if perfect colours matter. Photoninja for example makes constructing a session profile a breeze. Just takes a few clicks with the mouse if you have done the appropriate steps in the field.
Michael Erlewine:
--- Quote from: Bjørn Rørslett on October 28, 2015, 14:19:33 ---Photoninja for example makes constructing a session profile a breeze. Just takes a few clicks with the mouse if you have done the appropriate steps in the field.
--- End quote ---
I don't know PhotoNinja. It is an editor? Non destructive? How does this editor help with color correction?
Bjørn Rørslett:
PhotoNinja (PN) is a very good RAW conversion programme that works in a non-destructive way and handles nearly all cameras. It is beset with quirks so need some time to gain proficiency with it. Among the useful features is the ability to build session colour profiles simply by shooting a Color Checker (Passport or similar) under the actual illumination. Works wonders.
I learned about PhotoNinja from NG member Anthony and became quickly a devoted user, despite its shortcomings. PN is the RAW workhorse for many of us these days.
Go over to www.picturecode.com and have a look.
RobOK:
--- Quote from: Bjørn Rørslett on October 28, 2015, 15:02:54 ---PhotoNinja (PN) is a very good RAW conversion programme that works in a non-destructive way and handles nearly all cameras. It is beset with quirks so need some time to gain proficiency with it. Among the useful features is the ability to build session colour profiles simply by shooting a Color Checker (Passport or similar) under the actual illumination. Works wonders.
--- End quote ---
What would you or others say are the biggest strengths of PN that overcome the "quirks", compared to say a baseline of Adobe.
Thanks,
Rob.
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