I'm glad you brought up such a heavy EP Mike. It is something which someone with a dob needs to think about. There are some EPs out there that push the 1kg mark! You need to know that such an EP won't unbalance your scope, or you'll have to rig up a counter balance for it, which you will then have to reset once you remove the bulky EP. Careful it is not a counter weight that puts your primary at risk,

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