Jump to content
UltravioletPhotography

[RPP] How to get an almost Raw Composite from Raw Photo Processor


Andrea B.

Recommended Posts

To see a non-white balanced file, or "raw composite" as it is called in Raw Digger, make the following settings in RPP. The output is quite similar to that from Raw Digger but may have different camera color profiliing applied. The differences for this particular example seem to be in degree of saturation and amount of brightness.

 

White Balance, WB:  Select UniWB from the drop-down WB menu at the top left.

Curve: Select Gamma from the drop-down Curve menu under the RGB channel boxes.

............Enter 2.2 in the gamma box.

All other settings should be 0 or OFF.

 

Note that while you can get a UniWB version of a file from some raw converters (like RPP or Darktable), you would not be able to get the accompanying raw histograms supplied by Raw Digger which are useful for various kinds of analyses.

 

An RPP screen shot showing the settings for obtaining a raw composite.

rppsettings.png

 

 

RPP: Raw Composite with Gamma 2.2 and RPP's camera profile.

bouquet_vis_ambSkyLite_20210807laSecuela_25296rppUniWBGam22.jpg

 

 

Raw Digger: Raw Composite with embedded camera profile from NEF and a Gamma 2.2 curve, and autoscaling.

bouquet_vis_ambSkyLite_20210807laSecuela_25296rawCompEmbProf.jpg

 

 

For reference here is the finished photograph (which was shown elsewhere earlier).

bouquet_vis_ambSkyLite_20210807laSecuela_25296pn01Res.jpg

 

Link to comment

Another example from a file made with a UV+Blue+Green filter:  U330 x 2.0mm + S8612 x 2.0mm.

 

RPP Version of Raw Composite

bouquet_ug5x1dot5_s8612x1dot75_ambSkyLite_20210807laSecuela_25309rppUniG22SatLo.jpg

 

 

 

Raw Digger Version of Raw Composite

bouquet_ug5x1dot5_s8612x1dot75_ambSkyLite_20210807laSecuela_25309rawComp201.jpg

Link to comment

This last example was made with Baader-U. The Uni-White Balance shows dark red almost everywhere with some areas dark orange on the glass jar and in the center of the left flower.

 

Raw Digger

The raw composite was then brightened in Photo Ninja with a 3/4 stop increase in exposure. I just wanted to see if I could match the RPP brightness. Close enough.

bouquet_uvBaad_sb140_20210807laSecuela_25299rawCompexpThreeFourths.jpg

 

 

 

RPP

bouquet_uvBaad_sb140_20210807laSecuela_25299rppUniG22.jpg

Link to comment

Please sign in to comment

You will be able to leave a comment after signing in



Sign In Now
×
×
  • Create New...