How are people finding the Quark?

Use this section to discuss "standard" Baader/Coronado/ Lunt SolarView/ Daystar, etc… filters, cameras and scopes. No mods, just questions/ answers and reviews.
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cshahar
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How are people finding the Quark?

Post by cshahar » Sun Oct 26, 2014 12:08 am

I am thinking of buying one and a 110mm refractor, but a search of this and other forums reveals mixed results. I was hoping to get some feedback from users. It seems that it is difficult to get sharp images with the quark. Please let me know your experiences. There was quite a buzz when this filter first came out, but I am hearing much less about it now! I am still open to buying a dedicated solar scope, but was hoping the Quark lived up to its hype!
Thanks for your insights,
-Charles

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Re: How are people finding the Quark?

Post by grimble_cornet » Sun Oct 26, 2014 12:53 am

I am on my second Quark (first returned with banding issues) and am very impressed.
It is intended as a visual 'toy' so imagers are pushing the boundaries and learning as they go.
Daystar suggest f30 is the optimum which means that f6-7 refractors are ideal when combined with the x4.3 telecentric built into the Quark.
Here is a table summarizing my experience and that of another member (Solarhound) with different scopes:
Scopes for the Quark.jpg
The Quark seems to be quite sensitive to seeing conditions (not surprising with a x4.3 magnification factor) and there are lots of variables to consider (tuning, camera settings, use of focal reducers etc.) but I have produced a few images which make me smile.

This is probably my best so far using the Equinox 120 without reducer:
Equinox120 Quark Grasshopper3 2014 3009 0941ut coloured a.jpg
This is a rather nice prom shot with the same kit:
Eq120 Quark Grasshopper 2014 1910 1005 ut colour 800px.jpg
Eq120 Quark Grasshopper 2014 1910 1005 ut colour 800px.jpg (193.03 KiB) Viewed 1389 times
And finally a couple of images from my Equinox 80:
Eq80 Quark Grasshopper3 2014 1010 1030 ut inverted coloured.jpg
Eq80 Quark Grasshopper 6 pane 1032x776 mosaic 1200px.jpg
Hope this helps?
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Mike Garbett

Selection of Solar and Deep Sky images on Flickr: https://www.flickr.com/photos/mikegarbett/

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cshahar
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Re: How are people finding the Quark?

Post by cshahar » Sun Oct 26, 2014 1:39 am

Amazing images Mike! I am so impressed. You are one of the success stories for the Quark. I have some unanswered questions I would like to ask. Please excuse my naivete in the case of some of these:

1. Does taking images in urban settings affect solar images? You mentioned "seeing" conditions. Is pollution in the urban environment a factor? I would imagine heat rising from buildings would affect solar images, but do I need to go to the country to maximize my results?
2. I live in Canada, and therefore a cold climate. Is that a problem for the Quark, which needs to be heated to operate? In short, can I use it in the winter?
3. I plan to buy a 110mm refractor. Do I need an energy reduction filter or will a UV filter suffice? I think that's the cut-off.
4. Will a 2-inch focuser work on current quarks?
5. Most important: Have they ironed out their production problems by now?

Thanks a bunch,

-Charles

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Re: How are people finding the Quark?

Post by swisswalter » Sun Oct 26, 2014 8:13 am

Hi Charles

stay away from buldings, concrete, hot streets and roofs. Seek for gras or water.

A 2" focuser works perfect

I have yet to use it in cold weather, but I think that shouldn't be a Problem

a 110 mm gun is o.k.
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Re: How are people finding the Quark?

Post by cshahar » Sun Oct 26, 2014 1:32 pm

Thanks Swisswalter. I appreciate the information!

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Re: How are people finding the Quark?

Post by grimble_cornet » Sun Oct 26, 2014 2:00 pm

Hi Charles. I have sent you a 'detailed' reply to your email :lol:
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Mike Garbett

Selection of Solar and Deep Sky images on Flickr: https://www.flickr.com/photos/mikegarbett/

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Re: How are people finding the Quark?

Post by Valery » Sun Oct 26, 2014 2:34 pm

Mike,

I see your QUAK is exceptionally good, almost perfect. I believe that the best way to go is to investigate all the possibilities
of using Q with 120mm refractor.

Valery.
Last edited by Valery on Mon Oct 27, 2014 3:33 am, edited 3 times in total.
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Re: How are people finding the Quark?

Post by grimble_cornet » Sun Oct 26, 2014 4:11 pm

Thanks Valery. I managed to put it through most of the checks you suggested and was fairly happy with the results.
I now need some quality time in the sun to sort out optimum tuning, capture settings, use of focal reducer etc.
Unfortunately we seem to be locked into a long sequence of poor weather with low pressure systems, wind, cloud and rain constantly moving in from the Atlantic so........ watch for progress when things improve.
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Mike Garbett

Selection of Solar and Deep Sky images on Flickr: https://www.flickr.com/photos/mikegarbett/

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Re: How are people finding the Quark?

Post by smerral » Mon Oct 27, 2014 3:43 pm

I love mine. I find it performs very well with my ST102 (even though it doesn't get a great write up in the above table). Here's an inverted filament shot done with a 0.5x reducer.

Image
BRIAN
Caithness, Scotland.
Double stack PST, Lunt CaK B600, Daystar Quark Chromosphere
with Altair Astro 102 ED f.7 Refractor.
Celestron Nexstar 8SE.
DMK31AU03, ZWOASI120MM.

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Re: How are people finding the Quark?

Post by grimble_cornet » Mon Oct 27, 2014 11:31 pm

Hi Brian.
That is an excellent image :bow :beanie: :bow

I produced the table to record MY experience with the Quark as a guide for other users and was then contacted by Solarhound who added his experience to the mix.
If you don't mind, I would like to add your experience with the Skywatcher to the table to give a more balanced report for prospective users?
Scopes for the Quark.jpg
.

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Mike Garbett

Selection of Solar and Deep Sky images on Flickr: https://www.flickr.com/photos/mikegarbett/

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