I use an Ipad mini at night while observing with my telescope and it's screen emits a light blue glow that has to be dimmed down to retain night vision. My request is can someone comment on the new Ipad Air or Rmini under these conditions? Does the new IGZO displays still put out this glow. Take your older ipad and the new one in pitch black room and turn down the brightness. Is the new one dimmer?