The Iris 50 compass is clear evidence that a sturdy marine compass no longer needs to look austere. Good protection against hard knocks: the smooth finish feels soft in your hand and it will not slip even if it is wet. Outstanding legibility of the card with one degree graduations. No parallax error: a prism projects the reading of the bearing to infinity. This also contributes to a more comfortable operation as you do not need to alternate close-reading to read the card and infinite-reading to take bearings. Optimum conditions to take bearings thanks to the superb card stability and the wide 20° field of view which will accomodate the roughest sea conditions. Most accurate bearing : the pivot and very hard stone are a guarantee of long life and shock resistance of your compass. Soft bottom cell: engineered using ultra-somic welding it acts like an expansion diaphragm preventing the formation of bubbles and leaks. Built-in photoluminescent lighting completely maintenance-free impervious to corrosion operates without batteries or radio-active tritium. Course reading from above the compass: you can read your compass like a standard compass with no need to look through the prism Features Two functions: handbearing and traditional compass.