I used an older version of the Lowepro lens cases for mine. You need to use the cases designed for larger diameter lenses.
I was fortunate to be able to go into a camera store (Glazer's in Seattle) that at the time had a selection to choose from.
I don't have mine anymore, and the model names and numbers have changed.
The cases that are large enough for RB lenses are themselves quite large on the exterior.
I used an older version of the Lowepro lens cases for mine. You need to use the cases designed for larger diameter lenses.
I was fortunate to be able to go into a camera store (Glazer's in Seattle) that at the time had a selection to choose from.
I don't have mine anymore, and the model names and numbers have changed.
The cases that are large enough for RB lenses are themselves quite large on the exterior.