My
SkyWatcher 130M telescope needs a little help to reach prime focus with a DSLR camera (see also this
great blog post). So I decided to move the primary mirror up the tube to allow my Canon EOS to reach focus when attached directly to the T-ring for prime focus astrophotography. This involved almost completely dis-assemblying it, playing with new nuts and bolts, then putting it back together.
I started by removing the spider and secondary mirror assembly, which are held by four recessed screws and nuts on the inside (which should not be dropped onto the primary mirror):
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| Four screws hold the SkyWatcher 130M spider | SkyWatcher 130M (SK1309EQ2) secondary mirror |
