Hi Peter,
My HEQ5Pro simply LOVES having an ED80 only on it, when I load up my imaging rig (8" newt @ 1000mm long, 50mm Orion guidescope and Atik 314L+) it struggles even with an additional counterweight and I find it isnt too happy when at full extension and the tube is on the west side.
At one stage I tried having my 130mm newt riding piggyback on the main tube and the motors could hardly move the bulk.
I think an 8" newt steel tube and 50mm guider is about the max this baby can handle, obviously having a CF tube or smaller scope makes a lot of difference, the ED80 as mentioned tracked like a champion as it is a featherweight compared to the newt.
Cheers
Chris
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