Yesterday I have had a real challenge.

Misty weather, frosty temperatures, and together this gave nice ice crystals, which looked like snow on the trees and the leaves.

But the whole scene has been more grey than white, and I haven't had a good idea for separating the misty background to the trees in the foreground (background more dark, front more bright):

- Polarization filter - no function without blue skies, I believe..
- Colour filters? Grey seems not to be a complementary colour of another colour..
- Changing exposure and development times wouldn't spread the grey tones, in my opinion..
- Darkroom action with Multigrade, dodging, burning?
If the whole scene contains nearly one or two shades of grey, would this really help? I don't think so..

If I'm wrong, please tell me, but I only can see the gradual ND filter as a solution in this situation, and maybe the blue filter for giving the mist in the background some more presence ...

Thanks for your suggestions,
Ritchie