Hitech 85mm Filter system Step up ring covers

[Minch]

Does anyone know where you can get covers to attached to the step up ring for the Hitech filter system which would allow me to leave the step up ring on the camera and still protect the lens?

 

[Wissel]

Would like to know this as well.

 

[stevelmx5]

I've never looked closely at the Hitech holder because I've always used Cokin P holders. Looks like you'd need a cover with a thumbscrew like the filter holder but I've never seen anything like that? For the Cokin style adaptor rings I have clip on covers but looks like you may need to make something yourself which would be strange for what is supposed to be a complete system?