Rollei Spirit Level Set - Clip-on Spirit Level for Correct Camera Alignment for Hot Shoe (Pack of 4)PRODUCT DESCRIPTION Especially for long time shots of landscapes with filter insert it is important to align the camera exactly horizontally to the horizontal line. Most Rollei tripods are equipped with numerous spirit levels (spirit levels) as standard so that you can be sure to shoot in poor lighting conditions or in tight spaces always in the right solder. However if you want to align the camera independently of the tripod you need additional spirit levels which can be easily mounted and dismantled. Simply slide the clip-on vials of the Rollei spirit level set into the hot shoe of your camera. The extra slim spirit levels feature a distinctive and highly visible black circle for accurate levelling of your look. Even if you accidentally lose a dragonfly you will also have more workable specimens away from the photographic infrastructure. BOX CONTAINS 4 push on spirit levels.