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By Mandy D
I've just bought a Daystar Solar Scout 60mm DS for H-alpha imaging of the Sun. I am now looking for a suitable camera to use with it. I know I could use my DSLR, but for H-alpha that is not going to give best results, so am looking for a dedicated monochrome imaging camera. I have identified the ZWO ASI178MM as a possibility that fits my budget and has a large enough (I think) sensor to image the entire Solar disc if I use a 0.5 focal reducer which will give me a total focal length of 465 mm.
Does anyone have any experience of this camera in this application, or know if it will be suitable? I know it does not have an IR blocking filter, which I understand is an advantage for H-alpha. The spec is available here:
I bought this filter about one year ago with the aim to protect both my Tak-100 DF and a Quark eyepiece which eventually I never bought. Therefore, I am selling it, hoping that it will go to a good home and be used as it deserves.
It is a top quality Baader ERF for solar viewing with Quarks. It is in excellent condition and comes complete with housing measuring 146mm. The previous owner used to fit it on an Altair 115mm F7 refractor. With some minor modification (essentially adding some padding to the internal side of the housing) it can be fitted on many other telescopes.
It cost £550 but selling for £320 including postage. I will accept PayPal (pay as a friend) or direct bank transfer.
Also advertised on ABS.
Thank you for looking,
as suggested by Hughsie, here's my pastel sketch my contribution to the solar imaging challenge.
Telescope: Lunt LS50THaB600PT
Eyepiece: Celestron X-Cel 10mm
Date & Time: May 29th, 2019 / 1630-1700 CEST
Location: home terrace, Dusseldorf region, Germany
Technique: reddish Koh-i-Noor Toison d'Or pastels and pastel pens on greyish Canson Mi-Teintes pastel paper
Like all of my astronomical sketches , I did this one directly at the eyepiece. The picture of the sketch is taken with my smartphone and just cropped.
Clear (and sunny) skies!
Size: 24 x 32 cm
Taken on Sunday evening with a 98% Moon.
Comprising of 12 x 600s subs using an ED80 with a 0.85x FF, an Atik 383L+ and a 7nm Optolong Filter.
Stacked in DSS, and processed in PS.
Full frame and cropped, mono and h-alpha colour using NC Actions.
Thanks for looking
Managed a bit of further processing on data captured on holiday - this field of view is something I would really struggle with at home (it's 9 degrees lower, and doesn't rise above my roof from my garden!) - a widefield of the Eagle (M16), Swan/Omega (M17) and M18, as well as a lot of HII in the surrounding areas. The HA filter helped a lot in cutting through the atmosphere - it's not fantastically high from the site we were at, and I still had to have a couple of nights at it dodging the trees.
QHY163M + Canon 200mm f2.8L (@f3.85) + Baader 7nm HA filter, mounted on a Losmandy GM8.
Exposure 2h50m in 5min subs. Binned a few subs as they were of poor quality.
Processing in PI. Thanks for looking
At 50% resolution:
Partially annotated version (lots of unmarked catalogues not shown, and not sure why Sh2-47 is marked away from the actual object! :