Different parts of a Compass (Demo on Silva 4)

Short clip describing the parts of a Compass and there uses we used a Sila 4 Expedition Compass as our demo being one of the most popular on the market also it relates well to other Compasses. My most popular bloop the orientation lines in face north in the compass and are aligned along the easting grid lines on the map when taking a bearing. I often call the easting lines northings by mistake when using orientation lines as they are pointing north along the eastings but not to matter all the parts are correct in this upload