Are the Voigtlander Bessa grips compatible with the R-D1?

[Asahizuiko]

As per title. I'd like to add a grip to my R-D1 and the bessa grips are easier to find than the Epson ones

 

[CameraQuest]

nope, not compatible

 

[Asahizuiko]

Thats a shame! Thanks for your reply