My Camera >Lenses35SAMSUNG 20-50 mm F3.5-5.6 ED II lens (example)7123465No.Description1Lens mount index2Zoom lock switch3Lens4Focus ring (p. 70)5i-Function button (p. 48)6Zoom ring7Lens contactsLocking or unlocking the lensTo lock the lens, pull and hold the zoom lock switch away from thecamera body and rotate the zoom ring clockwise.