OAG on my EdgeHD
Quite a specific question here. I capitulated and bought an off axis guider (OAG) for my 8” EdgeHD as I had troubles with differential flexure with my guide scope. I am aware however that the EdgeHD has specific backfocus requirements of 105mm when using the 0.7x reducer. I had all the right extension bits to get this but the OAG adds 16mm.
How hard and fast is the 105mm requirement? What effect will I get if I go outside this?
If a problem I will have to look for a spacer that is the correct length which will be tough. Cheers
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