[keithwms]

Why not?

LOL my first question as well. Because Rolleis work miracles with shitty light, don't ya know

Mustafa, please clarify what you are trying to achieve. Are you trying to put in colour that you didn't see with your eyes at the time? Not trying to be flippant but that's what it sounds like to me.

Or: is the issue that your film isn't handling the colour temp in low light / shade? That is a common issue with colour film.

If you want more saturation in flat, low light then you might try slide film, but just be aware that colour temperature can shift wildly from 5000K in low light/shade. You're not going to get daylight tones from any colour film unless you take that into account and filter appropriately. Colours will wash out quickly if you don't.... no matter how you expose.

That said, I do sometimes mildly overexpose colour neg film to enhance the primary colours and give more saturation. But again, if colour temp is off... is that your issue?

Rollei has zero to do with it. Not even sure the film has much to do with it, really. This is probably a colour temp issue, but why not show us an example. Maybe I am misunderstanding your issue, sorry if I am.