Good morning all. I have recently acquired an LPL 7451 which has both colour and the VCCE modules. Now my understanding with the VCCE head is the exposure time will remain constant no matter the grade selected. I tried this out on a quick test the other night using MG V. Using the Durst easel that opens up into quarters on 10x8 sheet ( can't think of the official name) I printed at grade 0, 2, 3.5 and 5. the lower grades were fine but 5 needed twice the exposure. I know this applies when using the Ilford filters but I wasn't expecting it with this head. So my question is - is this normal even with these type heads or am I missing something?