No Philippe, Lith D contains bromide and a benzimidazole. Lith C contains several sulphites, but it is too expensive because you have to dilute it 1+2 for this purpose.
Thanks! Of course I ment Lith C.
The Fotoimpex catalog says (about Lavaquick): "Eine Vorbehandlung mit Lavaquick verhindert effektiv die Bildung von Tonungsflecken, bei anschliessender Selentonung". Stimmt es?