I use two different compasses. The Brunton Baseplate 7DNL is great for use with a map, and it has adjustable declination. or rather a declination scale. I don't really use that feature where I live because declination is almost zero. For walkabouts, hunting, and canoeing, I use my old fashioned brass Taylor compass. I figure if it was good enough for the US Corps of Engineers, it's good enough for me. You can still get these for the price of a high-end modern compass.