39mm filter

[dfoo]

What 39mm filter will go on a summicron 50 AND allow the hood to attach? I'm specifically interested in yellow/red/orange here.

[Tom A]

The dedicated Leica 39 mm filters works with the clip-on Leica hoods.

[loquax ludens]

What about B+W filters? Will they work in the same way with clip-on hoods?

[B.J.Scharp]

All my B+W filters work perfectly, except for my polarizer.