LH-49 Sliding Lens Hood Dimensions Needed (1 Viewer)

Does anyone have one of the Oly sliding lens hoods? I do not, and actually want to use on a different lens (by modifying slightly). I know the lens it goes with is approx. 55mm wide but exact dimensions would be helpful.

If anyone has one I'm looking for the exact internal diameter of the bracket for the hood, and the internal diameter of the hood itself.

Thank you!

sorry for late reply, only just seen your post - hope this info is still of use. I don't own the Oly hood but i do use the (very much cheaper) JJC LH-J49 Lens Hood on my Oly 60mm macro. Looks the same and works very well, in same, sliding, way as the Oly original. Internal diameter of hood is 50mm, and of 'bracket' 49mm.