ConchyJoe
Contributor
I would need a +4 diopter in my mask alone to see that!
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Does this mean that the WB settings in the OLY EM5 don't do anything in the RAW file so don't bother with making adjustment in the camera?
That's the point of shooting raw. Everything the sensor records is in the raw file, and no PP settings on the camera affect the raw file. The only thing that affects the raw file is exposure bias, since that directly affects the amount of light hitting the sensor.
It may seem as if your camera settings (saturation, sharpening, WB etc) affect the raw file, but in reality they don't. The camera settings are stored as PP instructions in the raw file, usually readable only by the proprietary raw file processing software. Topside, I'm a Nikon guy, and the settings on my D300 affect the initial result - before my own adjustments - if I PP in ViewNX or CaptureNX. If I PP in LR or PS, the camera settings don't matter at all since the instructions in my NEF file can only be read by Nikon software.
But basically, as long as you shoot raw, WB and other settings on the camera only give you a basis for your PP settings. The information in the image file isn't affected at all.
Phil, I had the impression that the GRADATION setting was actually one of the few settings that may affect RAW (like increase noise in the boosted shadow areas under AUTO gradation...)
Can you confirm which way it goes on that setting for RAW?
Frankly my UW pics are coming out a lot better since i selected a LOW gradation setting on the OM-D (I only shoot RAW) and process later using LR or ACDSEEPRO but your experience may tell me whether I am just delirious about this or gradation does indeed affect RAW.
So while the other settings will not be changed in the RAW files GRADATION will make a difference.
with the EM-5 F22 looks pretty darn good with lots of DOF!
According to this thread on mu-43.com, it's because the gradation setting actually affects exposure. Somewhat similar to Nikon's "Active D-lighting", which exposes for the highlights to ensure they don't blow out and then lifts the shadows during PP/JPEG generation.
Personally, I prefer to introduce any exposure bias myself instead of the camera doing it without me explicitly telling it to, but anybody's mileage may of course vary.