Hoya sepia filters?

[Bill58]

Has anyone used these? How well do they work? How many exposure stops compensation do you have to use?

 

[petebown]

Horrible for anything but sunsets... and I still won't use one. The trouble is, strong colours creep through, so it looks nothing like a true sepia print. Also you won't get any white in the image.

Much better to print B&W then sepia tone.
You can use Ilford XP2 film and process it using a standard C41 colour print lab, this may produce sepia prints, but some labs produce an unpleasant green colour.
Or use photoshop - it has a built in macro to change a colour print to sepia.