The optech usa super pro strap black is made to carry most medium format and some professional cameras with retaining lugs it uses a design b connector to attach the strap to the camera the fully adjustable strap is made of neoprene with elastic and a non slip grip it has control stretch comfort with a slightly curved pad to allow the strap to rest lower on the neck it has a locking slide mechanism for extra protection and a secure connection convertible to a hand strap by removing the q