on a mirrorless rangefinder?(http://www.autoadmit.com/thread.php?thread_id=5744540&forum_id=2\u0026mark_id=5310486#49059721)
(http://www.autoadmit.com/thread.php?thread_id=5744540&forum_id=2\u0026mark_id=5310486#49061723)