Seeking ways of tracking birds in flight with 500mm lens

Started May 23, 2013 | Discussions thread
Tan68
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Re: Seeking ways of tracking birds in flight with 500mm lens
In reply to Barry Pearson, May 29, 2013

ok.  i still had a misunderstanding.  i didn't realize light was involved.  i thought it was a painted sight.

has it been difficult to sight in ?

(i figure the alignment can be adjusted with little set screws...  or do you just get a feel for the position of the light versus actual point lens covers..?)

((when i had an old meade or tasco or whatever telescope, it was nearly impossible for me to properly adjust the little sight on the side.  there were 6 set screws.  3 in front and 3 toward the back))

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