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Attackpoint - performance and training tools for orienteering athletes

Discussion: Standalone magnifying glass?

in: Orienteering; General

Jun 5, 2024 9:44 PM # 
I use a baseplate compass and have not used a magnifying glass so far.
Can you recommend any magnifying glass to be used with a baseplate compass?
What should be its focal length / optical power?
Jun 5, 2024 11:21 PM # 
You could look through Amazon and probably find a selection of baseplate compass with magnifiers built in or just do a google search.
A number of years ago I experimented with a simple reading magnifier I purchased in a book store. I think it was a +1.25 but I may be confusing that with a pair of cheater glasses I tried once. It did the job magnifying but was clumsy for me to carry and it was a magnet for dirt and droplets of sweat.
Jun 6, 2024 6:11 AM # 
Sounds like your iron levels are too high.
Jun 6, 2024 2:12 PM # 
Both Silva and Suunto have current model baseplate orienteering compasses with a built-in magnifier. Neither specifies the optics, but why do you need that information? You just hold the magnifier over the map at whatever focal length suits your eyes best. This is probably 3-4cm. Magnifiers that are made to fit on thumb compasses are usually on an arm at about that distance above the map.
Jun 6, 2024 9:18 PM # 
Buy this:
and drill a hole in the base plate to fix it.

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