Objects Disappear on Camera View - Pressing "0" Key I'm puzzled why my ojects disappear whenever I press "0" key to preview camera angle. I've set my camera to 50mm and LOCK CAMERA TO VIEW. Cannot figure it out. They all disappear when I zoom out. 

By the way, I have set my unit of measurement to IMPERIAL. Is this a problem?
Try to decrease the "Start" value and/or increase the "End" value in Clipping section of your camera settings.