Darn it ....a tripod head bolt is magnetised !!!!
Posted 10 August 2009 - 03:25 AM
Anyone know how to easily degauss a bolt ? I'd rather keep the tripod assembled .
Posted 10 August 2009 - 05:37 AM
Posted 10 August 2009 - 06:34 AM
Any iron source near a compass will upset magnetic flux lines. Most tripods have steel bolts & thus compasses are affected by them.
Try to move the compass as far away as possible, lets say on a wooden board across the legs base?
Posted 10 August 2009 - 07:28 AM
K W TONG
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Posted 10 August 2009 - 07:38 AM
...steel tube type tripod ...
Even if you exchange megnetic bolt, your compas is going to be affected by steel tripod...
Just go some 10 meters away from tripod with your compas and check directions there.
Posted 10 August 2009 - 07:43 AM
Posted 10 August 2009 - 08:39 AM
I hand hold the compass about 3 feet from the mount when using it to polar align to avoid affects from steel, motors, and their magnets, etc..
I don't put the head onto the tripod until it's leveled and then compass aligned . It sits at least 8 ft away in the back of the Pajero or on a work bench in the garage until the above is done, I then bring it out and line it up with chisel mark on the tripod head.
I've some spare leg bolts that might be the right length from another older tripod that I spotted in my tools cabinet , I'll try them out (with the magnet first if they look the right size).
The other leg bolts don't seem to effect the compass needle , just one of them .
I think the legs are stainless steel (well that's what I was told they were when I bought it) and I haven't noticed any deflection due to the legs when I hold the compass right next to them).
I was also under the impression the tripod bolts were supposed to be srainless as opposed to ordinary Cr steel which has been chrome coated. I may be wrong on that score.
Posted 10 August 2009 - 09:14 AM
Posted 10 August 2009 - 12:52 PM