This is very impressive. Right now, I'm trying to decide how to use a double stack arrangement with a large ERF setup. Single stacking either a PST etalon or Quark Combo doesn't cut it. I'm playing with double stacking a PST etalon with my Quark Combo but so far the view is a bit dim.
One hesitation I have in buying another PST for a DS setup is that the current PST looks a bit different than the one I cannibalized for its etalon.
Would you know if the back and front threads between the current PST etalons and older PST etalons are the same?
Lou
Last edited by gabrieli on Sun Sep 24, 2017 12:38 pm, edited 1 time in total.
bart1805 wrote: ↑Sat Sep 23, 2017 4:12 pm
Hi Lou,
Thanks!
As far as I know the threads have stayed the same, so that would be M51x1. Maybe somebody else can confirm. Bart.
M50x1
"Solar H alpha activity is the most dynamic and compelling thing you can see in a telescope, so spend accordingly." (c) Bob Yoesle.
Largest full size 185 - 356mm Dielectric Energy Rejection Filters (D-ERF) by ARIES Instruments.
Lou,
As far as I can see, the latest PST have an anodised "gold" tube rather than the original brass tube.
The eyepiece holder as previously mentioned also appears to have been increased in height - making it more difficult to focus a camera and image.
The etalon assembly, black box design (and the over load of Loctite!!!) is unchanged.
Back to the images........very nice indeed! The DS PST mod appears to be working very well.
Stu.
H-alpha, WL and Ca II K imaging kit for various image scales.
Fluxgate Magnetometers (1s and 150s Cadence).
Radio meteor detector.
More images at http://www.flickr.com/photos/solarcarbon60/
Super detail from this setup, it's working really well!
http://brierleyhillsolar.blogspot.co.uk/ Solar images, a collection of all the most up to date live solar data on the web, imaging & processing tutorials - please take a look!
Thanks Alexandre, Stu and Mark!
@Mark: is the only difference between this DS experiment and the one you tried, the addition of the circular polariser?
230917_14h07m_Br127_DS_PM2,5x_AR_PS by bart moors, on Flickr
230917_14h07m_Br127_DS_PM2,5x_AR_PS_Inverted by bart moors, on Flickr
