smith934 wrote:
Step two, as presented, does not involve any presets or adjustments, just a simple conversion of the raw file to jpeg. Given that, I completely agree with what Donald said, it's unnecessary as it accomplishes nothing for a comparison.
I don't think any of us disagree by much in this situation, except that step #2 does serve an educational purpose . I think we read and interpreted the original post slightly differently.
Step two as presented just said "copy raw files and convert them to jpeg".
It did not explicitly say without any presets or other adjustment. So whether any presets would be permitted is a matter of interpretation. The outcome of that conversion would clearly be different depending on the nature of the process. It's really a problem of having something expressed in simple terms in a complex situation.
Bull drink water's exercise was completely valid, and step #2 could serve a useful educational purpose to demonstrate that there is more to the raw / JPEG thing than just a computer file format. This is not always obvious to everyone.
In the majority of cases a JPEG delivered by a camera includes more than a format conversion, compression and discarding some of the data deemed unnecessary. Depending upon the camera settings it frequently includes other image adjustments, which will vary for landscape, portrait, or monochrome for example.
So in looking at the exercise presented, with some enhancements:
1 shoot in raw/jpeg. - this provides a basis for comparison
2a copy raw files and convert them to jpeg without anything other than the format change - this will provide a viewable version of the raw file in JPEG format. It will probable look fairly bland in comparison to the JPEGs from the camera and demonstrates that the camera introduces some kind of additional processing
2b do more raw to JPEG conversions for any given file using some different adjustments - brightness / contrast / sharpening etc., then repeat for a few similar frames with the same presets - this can be automated if preferred, which is actually an important workflow step for many.
3 pick a few "good" or "challenging" raw files and individually make adjustments to either fix some issues - white balance, blown out areas, incorrect exposure etc., or to adjust the image to your desired result.
4 compare the results of steps 2a, 2b, and 3 with the JPEGS out of the camera and see which you like best.
Personally I think that would provide a more complete example of the differences between shooting JPEG only, shooting raw and the PP that is involved in producing a final JPEG whether from the camera or from post-processing. It is however an academic exercise to illustrate differences, not a recommendation for a workflow.
Cheers