5. Aligning the Finderscope
Figure A. A distant object is centered at the telescope’s field
of view. In this example we have a house with a chimney.
The chimney is the reference point to place at the center of
the field of view. We first look through the telescope with
the lowest magnification possible (H20mm should be
preferrable). So we have the widest field of view.
STEP 1
Figure B. Looking through the finderscope we see the same
building but in this case the chimney is not centered. We
adjust the finderscope using the three thumbscrews so that
the finderscope moves slightly. This is enough to correct the
objects position in the finderscope. Trial and error is required
to get a satisfactory result. Make sure to tighten the 3 screws
after finishing so that the finderscope tube does not move.
STEP 2
Figure C. After playing with the three findercope
thumbscrews and some trial and error we get the
finderscope recticle close to the center (in this case the
chimney). The Finderscope is now ready to use!
STEP 3
6. Alignment of the optics and collimation.
Telescopes require periodical checking for the alignment of the optics. The optics should be
aligned (or collimated) so that the telescope can achieve a good performance and deliver a
