kevlewis' photostream  

This was the only image worth processing today, as the sun was being very shy. Solar imaging is almost as frustrating as astro work lol.

A quick 30 second capture and 20% of the frames used. DMK41, Powermate 2.5x and modified Lyra Optic 4" f/11 refractor.

I used Avistack2 for a change and I like the gentle effect it has produced.

First light with my recently completed PST Stage 2 Lyra Optic 4" f/11 refractor (LOHA).

www.photosbykev.com/wordpress/2011/11/29/pst-modifications/

First light with my recently completed PST Stage 2 Lyra Optic 4" f/11 refractor (LOHA).

www.photosbykev.com/wordpress/2011/11/29/pst-modifications/

First light with my recently completed PST Stage 2 Lyra Optic 4" f/11 refractor (LOHA).

www.photosbykev.com/wordpress/2011/11/29/pst-modifications/

Trial fit of the BF-15 blocking filter, the Borg focuser and adaptors and the PST Etalon with 2" nose piece.

The front Borg adaptor has a SCT thread on the front which I need to remove and replace with a M50 x1P thread to connect to the PST Etalon. At the moment the working distance from the front of the BF-15 housing to the front of the PST Etalon knurled ring is 145mm when the focuser is at 10mm i.e. mid travel.

I think when I modify the Borg adaptor I'll shorten it another 5-10mm as it is easier to lengthen the optical path if I needed to but more difficult to shorten it as I modify the components