Operating instructions for your carl zeiss binocular . Available to purchase for immediate download. Below is an extract from the manual converted to text for a quick impression on the content. Operating instructions for your carl zeiss binocularOperating Instruunons for your ZEISS BinocularThere is no difficulty in handling your ZEISS Binocular. How- ever, it will nevertheless be useful to carefully study this booklet. May be it contains some interesting and new information which is worthwhile to remember. This will increase your pleasure in the precious Binocular. Setting of the pupillary distance Move the two binocular halves either closer to or farther away from each other, until you see one circular image field only when observing with both eyes. The binocular is now correctly set for your pupillary distance. The value for this can be read off the corresponding scale (Fig. 1), and should be remembered in future.