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Old 22-07-2019, 06:26 PM
Startrek (Martin)
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Startrek is offline
Join Date: Dec 2017
Location: Sydney
Posts: 2,767
In addition to your 8 or 10 Bintel Dob telescope you will need to collimate ( align ) the optics or mirrors from time to time depending on how much the scope is moved around or bumped etc...
Attached are two accessories I have used over the past couple of years that do the task really well

Orion Cheshire eye piece

Orion laser collimating tool

Both available from Bintel

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