Is the Etalon unit still available?
Cheers from Sunny Australia
Mike
Search found 1 match
- Sun Apr 03, 2016 11:03 pm
- Forum: Solar Astronomy Shop and Swap
- Topic: Clearout(3):PST Etalon - BF D15m - PST Prism box - ERF 100mm
- Replies: 1
- Views: 3627