Page "Single-lens reflex camera" Paragraph 24

Some manufacturers of medium-format 120 film SLR cameras also made leaf-shutter lenses for their focal-plane-shutter models.

Rollei made at least two such lenses for their Rolleiflex SL-66 medium format which was a focal-plane shutter SLR.

Rollei later switched to a camera system of leaf-shutter design, ( i. e., the 6006 and 6008 reflexes to name a few ) and their current medium-format SLRs are now all of the between-the-lens shutter design.