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    Re: The Wild T4 Theodolite
    From: Bruce J. Pennino
    Date: 2016 Apr 4, 18:14 -0400
    Hello all:
     
    As some may remember (maybe painfully) , I used my Topcon theodolite for measuring dip angle.  For various reasons, on the average, my dip data/results did not agree with the standard value. Nothing really significant, maybe 5 - 6 % lower, but it still was interesting and fun to do.  I would set up in a beach parking lot and wait for the moon or stars to ‘pop out”.
     
    I met many very nice people. Kids were really interested in astronomy. Venus , Sirus, etc  could be easily identified  and seen by eye and the kids were great. I recommend that you try to find a right angle prism. The accuracy in position was quite unbelievable. I previously had determined my height of eye for several locations so the set up was quick. It is truly amazing to me that the NA has such precision as proven by measurement with a theodolite.
     
    A heavy tripod is required for excellent results.
     

    Bruce


       
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