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I have a small nit-picking issue with the Orion AO unit and the same issue with their Deluxe OAG. The guide camera mount is attached to the body of the unit by the usual means - it sits on a shaft that runs up from the internal pick-off prism. The issue is with the actual way the guide cam unit is secured to that shaft. There are 2 grub screws. Yes, they're nylon tipped and all that but only 2 and not 3 of them. With my deluxe OAG, I have found that the guide head is not as rigidly secured as I would like. When I have the time I plan to have a third hole driilled and tapped for another grub screw just to give me that bit of additional rigidity.
I wrote to Orion in the states and was told by them that they have not had any other comlaints about this and no returns because of it. So it may just be me and, as I said, it's a nit-picking issue anyway.
Peter.
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