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For sale is my Daystar Quark, Chromosphere version. It has had infrequent use and I can't justify keeping it. Works superbly with my ED80. It was purchased in July 2017 from Widescreen Centre so is still well within the 5 year warranty period. I am looking for £625 posted to a UK mainland address. Everything is complete in the box including instructions, USB cable and power adaptor. Payment by bank transfer please.
I currently have a Lunt 50THa and I am looking for something showing more detail and contrast on the sun's surface. I have been considering the new Meade SolarMax III 70 Double Stack, the Lunt 60 with DS (fairly expensive in comparison) and now stumbled across the Daystar Chromosphere. My key considerations:
- I love that I can just take out the Lunt at lunch time, put it on a photographic tripod, and I am up and running in about 5min.
- When travelling, it would be easier to have one telescope to take with me for day and night use
- Cost is certainly an aspect - I do not want to spend more than about 3000 pounds.
May I get your input on a couple of assumptions I am making (and which may be completely wrong - sorry, I am not a telescope expert, I just love using them...)
- The only purpose of double stacking is to get a narrower bandwidth using (cheaper) filters with a wider bandwidth - by using two 0.7nm filters tuned to slightly different bandwidth the Lunt and the Coronado achieve 0.5nm effective transmission.
- A Daystar Chromosphere with a transmission of <= 0.5nm will hence show me the same detail as a Lunt or Coronado Double Stack with a single Etalon
- A refractor up to 80mm does not require an additional ERF
- A relatively cheap achromat will do - as I am only observing at a single wavelength, the correction for multiple wavelengths really does not make a difference (at least for H alpha)
So on that background I guess an 80mm refractor with the DayStar will give me a really good solution am I right?
Hello from Florida, 👋
I wasn't able to image the 4th and final day as AR2729 rounded the limb due to work, but I was able to latch on for three days while it had lovely visible umbra. This is spanning December 5th, 6th and 7th. Imaged in 6562.8A wavelength.
Celestron 150mm F8 Refractor (CR150HD)
Daystar 150mm ERF
Daystar Quark Chromosphere
ASI174MM Camera with 2" GSO 0.5x Focal Reducer
I am thinking of getting a Lunt 50mm scope. I want to image as well as observe. I am thinking I could put my ZWO on the scope and capture video. My question is, does focal length in a solar scope relate to the FoV as it does for a non-solar scope? The field of view calculator (http://www.12dstring.me.uk/fovcalc.php) suggests I could just about get a full disc with a focal length of 350mm (the 50mm Lunt), but not with a focal length of 500mm (the 60mm Lunt). Is my logic correct?