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Well I got the scope out for an hour or so last night (was bloody cold).. with its fresh laser collimation.
Result.. perhaps a slight improvement but nothing out of this world. Still getting sharp and clear images of everything within reason, so it is certainly not any worse. I seemed to be able to resolve more detail and more stars in omega centauri cluster so that is a plus. Even managed to find M104 for the first time!
Will try the above checks too and see how I go. This dob's primary seems to be mounted on threaded screws throught he frame that the glass is mounted to, if that makes sense. with stop-screws sitting next to it. No springs.
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