Hi Anders, thank you for chiming in.
My profiles are for general purpose, landscape.
> With a general-purpose profile the light used when shooting the target is often not the same as when shooting real scenes
No. But the Sonnar and the Oly 135 were shot with the same Solux light, so they should look the same. - I need ICC profiles, because Helicon doesn't handle dcp's.
I do not adjust WB to taste visually for every image. The camera is set to 5000 K, which fits most of the time. If not, I sometimes use the sky as visual reference. Or I adjust WB to what I believe, based on sky or time of day. Regardless, 2 lenses shot under the same light should give the same result, IMHO.
So if I understand you right, I have to shoot the target with the Solux run at 15 V, which gives close to 5000K; and make a profile for every lens. So I will.