New Diagonal Mirror
Posted: Fri Dec 24, 2021 8:10 pm
Picked up this Celestron Diagonal in a box of parts off ebay.
The mirror did not look so good, but with a minor diameter of 30mm could not find a correct size replacement in USA. Enter the direct from China sellers on ebay. One showed up recently with mirror sizes every 5mm. Took 3 weeks to arrive and looked very nice, thicker too, so maybe higher quality. A nice refurbishment of a favorite 90.
Ebay search: short axis secondary mirror.
1st on list should be the source.
The mirror did not look so good, but with a minor diameter of 30mm could not find a correct size replacement in USA. Enter the direct from China sellers on ebay. One showed up recently with mirror sizes every 5mm. Took 3 weeks to arrive and looked very nice, thicker too, so maybe higher quality. A nice refurbishment of a favorite 90.
1st on list should be the source.