Quote:
Originally Posted by duncan
Hi Johnno,
I would have thought that you should have a roughly equal gap all the way around the finders holder. That is where the finder tube fits through the holder with the 2 adjusting screws.
If it has not been bumped hard or dropped to bend something i'd say you've just over adjusted it.
Try backing the screws off to get it to sit roughly centre in the holder. Then line the scope up on a distant object (mast,tree on hill,or something) then adjust the finder in small increments.
Hope this helps,
Cheers,
Duncan
|
Hi Duncan,
Thanks for your fast reply and advice. Unfortunately, to no avail. I have turned the adjusting screws so that the spotter sits 'straight' or 'centred' in the mount. I have then focused the scope (25mm) on a distant line of trees (approx 5 klicks from my house). When I thus look back into the spotter the selected profile seems to be way way off to the left (inverted). In order to even get within cooee of the selected scope image I have to adjust the tension screws out to the max and still I can't get it to within the crosshairs. I tried a bit at a time and in small increments but this just made the journey extremely slow. This is driving me crazy. Could it be colimation or perhaps the paraboidal mirror is out of alignment with the
secondary-mirror bracket. I can pretty safely rule out damage to the spotter as it seems pretty much 90 deg square and I can't recall dropping or voilently bumping it. This is a doosy but I'm confident it is something really simple.
I can do more images if someone needs a little more info.
In any case I appreciate your comments Duncan and look forward to posting or threading to you again.