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Hi, Mountain Wanderer. This question is like asking how long is a piece of string. The 4.5" would be fine for some people, and disappointing for others. It all depends what your expectations are. With the rig you
mention, the deciding factor would be the mount rather than the scope.
The EQ1 and 2 are not really stable enough for any serious viewing
with the 4.5". Are you familiar with aligning an EQ mount so that it will track quite well? It's not just a matter of plonking the scope down and
switching on the motor. If your primary interest is in viewing deep sky
objects, you will soon tire of 4.5. The SW450 with motor drive would
surely cost nearly the same as an 8" dob. You could get a used 8" dob
for around $300, possibly less. Keep your eyes on the classidieds here.
raymo
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