Quick test repaired Quark

this is the main message area for anything solar :)
Post Reply
User avatar
PDB
Almost There...
Almost There...
Posts: 702
Joined: Mon Aug 15, 2016 4:23 pm
Location: Belgium
Has thanked: 2 times
Been thanked: 149 times

Quick test repaired Quark

Post by PDB »

Quark came back from the US 2 weeks ago.

Cold an cloudy before noon, but suddenly around 12:30 clouds started to break. Still to cold (below 5°C) for the Quark, but decided to do a quick test anyway. Got it on temperature so the heater worked ok. Visually there was a lot of contrast in the image. (Had not seen that for long time).

So grabbed the laptop and the ASI-120 for a quick run, and shot 2 ser files + flat before clouds took over again. Not the best seeing for imaging,and no time to wait for good seeing. Sun 23° up in the sky.

The image is not really sharp, and too heavy processed, but the Quark looks promissing again ...
2018-02-08_T_13-44-52-0581.jpg
2018-02-08_T_13-44-52-0581.jpg (72.92 KiB) Viewed 1619 times
Paul


User avatar
marktownley
Librarian
Librarian
Posts: 42272
Joined: Tue Oct 18, 2011 5:27 pm
Location: Brierley Hills, UK
Has thanked: 20435 times
Been thanked: 10243 times
Contact:

Re: Quick test repaired Quark

Post by marktownley »

Glad the quark has returned mended! Glad you are getting some sun.


Image
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!
User avatar
PDB
Almost There...
Almost There...
Posts: 702
Joined: Mon Aug 15, 2016 4:23 pm
Location: Belgium
Has thanked: 2 times
Been thanked: 149 times

Re: Quick test repaired Quark

Post by PDB »

Thanks Mark. In fact I think the old one was beyond repair. Looked like a brand new unit.

P


User avatar
ffellah
Way More Fun to Share It!!
Way More Fun to Share It!!
Posts: 11171
Joined: Mon Oct 27, 2014 6:46 pm
Location: Westport, CT USA
Has thanked: 9144 times
Been thanked: 6025 times

Re: Quick test repaired Quark

Post by ffellah »

The seeing not great but still a valid image, Paul.

The nice part is that you are imaging again....

Franco


User avatar
Montana
Librarian
Librarian
Posts: 34560
Joined: Mon Oct 17, 2011 5:25 pm
Location: Cheshire, UK
Has thanked: 17667 times
Been thanked: 8789 times

Re: Quick test repaired Quark

Post by Montana »

I'm glad you got one that works, the one they sent me back was an absolute joke ;)
I look forward to sunnier days for you :)
Alexandra


User avatar
PDB
Almost There...
Almost There...
Posts: 702
Joined: Mon Aug 15, 2016 4:23 pm
Location: Belgium
Has thanked: 2 times
Been thanked: 149 times

Re: Quick test repaired Quark

Post by PDB »

Thanks Franco and Alexandra.
Well, weather forecast for the coming days not good. We did not have many "good" days in December and January, a weather change would be really welcome.

P.


User avatar
Valery
Way More Fun to Share It!!
Way More Fun to Share It!!
Posts: 4059
Joined: Sun Nov 18, 2012 3:13 pm
Has thanked: 156 times
Been thanked: 893 times

Re: Quick test repaired Quark

Post by Valery »

Looks nice! Congratulates with a mended Quark.

BTW Does this image represents a full Quark FOV? Have you applied a flat field to this image?


Valery


"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.
User avatar
PDB
Almost There...
Almost There...
Posts: 702
Joined: Mon Aug 15, 2016 4:23 pm
Location: Belgium
Has thanked: 2 times
Been thanked: 149 times

Re: Quick test repaired Quark

Post by PDB »

Hi Valery,

this was with the ASI 120MM but binned 2x to get bigger pixel size and not oversampling at f/25. (7.5 instead of 3.75) Noth resized in post processing but the crop in AS!3 made it a little bit smaller). Conditions were very bad and I had a lot of problems focusing when viewing on the laptop screen. A flat was applied (otherwhise there would have been a big dust donut)

While imaging conditions als deteriorated because of hazy clouds coming in.

Next test will be with a new 120mm/f8.3 (if the Sun ever comes back)

Regards,

Paul


User avatar
PDB
Almost There...
Almost There...
Posts: 702
Joined: Mon Aug 15, 2016 4:23 pm
Location: Belgium
Has thanked: 2 times
Been thanked: 149 times

Re: Quick test repaired Quark

Post by PDB »

Valery,

i now stacked a version Without flat and without the crop option in AS!3. So this is the full view on the ASI-120MM sensor.
Little bit of L&R an stretch in IMPPG and correct orientation. So this shows some darkening towards the left (but that is also direction of the limb)
And of course a big dust donut.
But flats can take care of this
Noflat.jpg
Noflat.jpg (79.1 KiB) Viewed 1582 times
Paul


User avatar
PDB
Almost There...
Almost There...
Posts: 702
Joined: Mon Aug 15, 2016 4:23 pm
Location: Belgium
Has thanked: 2 times
Been thanked: 149 times

Re: Quick test repaired Quark

Post by PDB »

And here is an image taken today with the 120mm f/8.3 refractor (with Quark at f/35)
Still not really sharp but that is mainly due to:
- seeing conditions
- very bad focuser which I need to replace with something decent (wit 4200 mm focal lengt a good focuser is a must)

ASI 120 MM-S 2x binned against too much oversampling.
C2018-02-10.jpg
C2018-02-10.jpg (46.64 KiB) Viewed 1541 times
Still some work ahead ...

regards,

Paul


User avatar
ffellah
Way More Fun to Share It!!
Way More Fun to Share It!!
Posts: 11171
Joined: Mon Oct 27, 2014 6:46 pm
Location: Westport, CT USA
Has thanked: 9144 times
Been thanked: 6025 times

Re: Quick test repaired Quark

Post by ffellah »

A nice addition, Paul.

Franco


User avatar
marktownley
Librarian
Librarian
Posts: 42272
Joined: Tue Oct 18, 2011 5:27 pm
Location: Brierley Hills, UK
Has thanked: 20435 times
Been thanked: 10243 times
Contact:

Re: Quick test repaired Quark

Post by marktownley »

Yes, good addition, the new quark seems to be a winner.


Image
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!
User avatar
PDB
Almost There...
Almost There...
Posts: 702
Joined: Mon Aug 15, 2016 4:23 pm
Location: Belgium
Has thanked: 2 times
Been thanked: 149 times

Re: Quick test repaired Quark

Post by PDB »

Thanks Franco & Mark.
Still some work to do now on this refractor to get it fixed to the mount in good balance and a decent focuser without breaking the bank. But unfortunatelly "on a budget" and "astronomy" seem to be mutually exclusive. (and I should need to get a camera with an IMX174 sensor for that combination as well. €€€€..)

regards,

Paul


User avatar
Montana
Librarian
Librarian
Posts: 34560
Joined: Mon Oct 17, 2011 5:25 pm
Location: Cheshire, UK
Has thanked: 17667 times
Been thanked: 8789 times

Re: Quick test repaired Quark

Post by Montana »

Very nice pic :bow :hamster: oh how I wish I could get out imaging again!
Alexandra


Post Reply