Leitz VISOFLEX Modified by CAMCRAFT
Instead of a reflex mirror a stationary non-moving "Pellicle" , a semi-silvered mirror that splits the light between the finder (30%) and the film (70%) is used. Now with the Leica Digital M cameras with Live-View, you can change your M digital camera into an SLR movie camera. Only a very few of these were made. No vibration due to the reflex mirror and no black-out.
As seen in photos, no release arm is needed. This VISO weighs 2.5 ounces lighter.