Quote:
Originally Posted by Benno85
Hi Eric,
I wasn't aware that GSO offered a low profile focuser, but that was what I was trying to get at 
Basically I don't want to bring the mirror up the tube by cutting the OTA, but if longer collimation bolts will do the same thing then that may be the cheapest way to go (as opposed to the GSO focuser) |
Well I was sure GSO did, but I cannot see it on the Bintel site at the moment??? OK, I can see it on the Andrews Communications site. Height 32mm, cf 52mm standard focusser.
If you do some searching, there was a report of replacing the collimation bolts with longer bolts and springs to move the mirror several cm up the tube. Apart from the bolts being rigid so the primary doesn't "wobble", the only issue I can think of might be a bigger diameter light cone at the secondary spilling over the edges - a bit of light loss?