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Magnetic deviation from OS grid

Addy

Member
footleg said:
Can anyone tell me how to calculate the magnetic deviation from OS grid north for a location in the Dales (West Kinsgdale)?

Do you mean Magnetic Variation ??
 

Peter Burgess

New member
Aware of this advice to use both eyes to read a Suunto compass, but also aware of the problems of parallax, I reasoned that if I could take a bearing with just one eye, there would be no parallax problem. I reasoned that if I could do it with one eye then I would, and I always have done because I can, and I have never had any problems at all doing so.
 
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