Nikon 5000 with EagleEye 5x lens mounted on UR-E5 at 3/4 zoom. No adjustable coolfix needed with the EagleEye. For some strange reason it works better with the UR-E5 than it does with the compressed adjustable coolfix. Probably because the camera end of the EagleEye is smaller than the Kenko or Crystalvue.