My Leaf Gain process.
0) Shoot at ISO 100 to minimise noise. (I find 50 too clean and 200 not always clean enough).
1) After taking the shot, place the diffuser over the lens.
2) Lengthen exposure time by 2 stops take a white shot
3) Lengthen exposure time by 3 stops take a white shot
Aperture must not be changed as this alters colour casts.
4) Open the leaf MOS files in Leaf Capture
5) Select the files I wish to apply the 'Gain' adjustment to
6) In the setup dialog for the adjustment set the 'falloff' percentage as appropriate (see below)
7) Identify (with a radio button) whether the gain file is the first or last in the shot sequence, its generally last with me.
Close the setup dialog.
9) Select a target directory to save the gain adjusted files to
10) Click on the process button/icon to trigger the creation of the adjusted Raw files
11) Import adjusted files into Lightroom for basic grading and further editing.
In step 6: I try to mimize the use of falloff correction as I find it affects overall exposure level. I generally need a max of 50% with the 24mm digitar but usually get away with less, maybe 0-25% for my other LF lenses.
This procedure also eliminates any errant dust spots, initially I was annoyed at having to use the gain step, but the advantage of zapping dust makes the initial up front effort less problematic as it saves some time in post.