Jump to content

  •  

CNers have asked about a donation box for Cloudy Nights over the years, so here you go. Donation is not required by any means, so please enjoy your stay.

Photo

Show us your Asi2600/Qhy268c images

  • Please log in to reply
141 replies to this topic

#1 RichieS

RichieS

    Sputnik

  • -----
  • topic starter
  • Posts: 44
  • Joined: 13 Jan 2017

Posted 26 April 2020 - 10:40 AM

I'll start.

 

get.jpg?insecure

 

get.jpg?insecure

 

get.jpg?insecure


Edited by RichieS, 26 April 2020 - 10:42 AM.

  • Mert, R Botero, elmiko and 4 others like this

#2 Lead_Weight

Lead_Weight

    Surveyor 1

  • *****
  • Posts: 1,690
  • Joined: 21 Jul 2016
  • Loc: Houston

Posted 26 April 2020 - 10:46 AM

Here's mine. Since it's galaxy season all these are longer focal length shots. Both an 8" RC, and an Edge HD 11. I plan on shooting some wider field galaxy stuff starting tonight with a 102mm refractor. And once it's nebula season I want to do some even wider field shots.

 

get.jpg?insecure

get.jpg?insecure

get.jpg?insecure

get.jpg?insecure

get.jpg?insecure

get.jpg?insecure

get.jpg?insecure


  • Mert, drprovi57, R Botero and 9 others like this

#3 RichieS

RichieS

    Sputnik

  • -----
  • topic starter
  • Posts: 44
  • Joined: 13 Jan 2017

Posted 26 April 2020 - 11:18 AM

Here's mine. Since it's galaxy season all these are longer focal length shots. Both an 8" RC, and an Edge HD 11. I plan on shooting some wider field galaxy stuff starting tonight with a 102mm refractor. And once it's nebula season I want to do some even wider field shots.

 

 

Very nice.


  • Lead_Weight likes this

#4 nyda83

nyda83

    Lift Off

  • -----
  • Posts: 15
  • Joined: 30 Jul 2018
  • Loc: Brescia, Italia

Posted 27 April 2020 - 07:36 AM

Hi guys fantastic photos! My asi2600 came Friday but since then only clouds over my head. From the details in astrobin I see that you used gain 101 why not exactly 100 as preset?



#5 Lead_Weight

Lead_Weight

    Surveyor 1

  • *****
  • Posts: 1,690
  • Joined: 21 Jul 2016
  • Loc: Houston

Posted 27 April 2020 - 11:39 AM

I wasn't sure if the read noise change would kick in at 100 or 101, so I set it to 101. Then I never went back and shot new darks at 100, so I've just kept using 101. But 100 should be fine.



#6 nyda83

nyda83

    Lift Off

  • -----
  • Posts: 15
  • Joined: 30 Jul 2018
  • Loc: Brescia, Italia

Posted 27 April 2020 - 11:50 AM

thanks for replay, I'm in the middle of creating a dark library, can you confirm hdr and zero gain setting in the preset is basically the same thing? gain 0 offset 50



#7 mewmartigan

mewmartigan

    Apollo

  • *****
  • Posts: 1,289
  • Joined: 02 Jul 2008
  • Loc: outside of Pittsburgh, PA

Posted 27 April 2020 - 11:51 AM

My 2600MC Pro is arriving today! yay.gif

 

weather outlook? Not so good. 

 

dark library, here I come.


  • R Botero, elmiko and Lead_Weight like this

#8 Lead_Weight

Lead_Weight

    Surveyor 1

  • *****
  • Posts: 1,690
  • Joined: 21 Jul 2016
  • Loc: Houston

Posted 27 April 2020 - 11:59 AM

thanks for replay, I'm in the middle of creating a dark library, can you confirm hdr and zero gain setting in the preset is basically the same thing? gain 0 offset 50

It should be. But I'm not imaging on a PC, so I don't see the ASCOM settings. I use the INDI driver, which you manually have to set the gain to a number, hence, my 101 gain. If you don't live in a dark sky area, and have light pollution to deal with, then I recommend using 100 gain with short subs of 2 min or less. You'll have less noise, and less full well capacity (which you don't need with short subs). And only slightly lower bit depth, which you can make up by having all those short subs. 

 

If you have very dark skies, and want to do long subs of more than several minutes to take advantage of the full well capacity, then setting to 0 gain makes sense.



#9 APshooter

APshooter

    Skylab

  • *****
  • Posts: 4,266
  • Joined: 14 Oct 2013
  • Loc: Camby, In.

Posted 27 April 2020 - 02:26 PM

I shot my gain and bias frames, waiting on an adapter for the Rasa.



#10 nyda83

nyda83

    Lift Off

  • -----
  • Posts: 15
  • Joined: 30 Jul 2018
  • Loc: Brescia, Italia

Posted 06 May 2020 - 03:42 AM

Here it's mine first light, just 17x200 sub, hope for some more clear sky in the next days

get.jpg?insecure


Edited by nyda83, 06 May 2020 - 03:43 AM.

  • R Botero, elmiko, nemo129 and 3 others like this

#11 RichieS

RichieS

    Sputnik

  • -----
  • topic starter
  • Posts: 44
  • Joined: 13 Jan 2017

Posted 07 May 2020 - 04:30 PM

Here it's mine first light, just 17x200 sub, hope for some more clear sky in the next days
get.jpg?insecure

Very nicely done

Edited by RichieS, 07 May 2020 - 04:30 PM.

  • elmiko likes this

#12 smr

smr

    Explorer 1

  • -----
  • Posts: 76
  • Joined: 22 Aug 2018

Posted 08 May 2020 - 05:13 PM

Great images. Has anyone got this Camera with a widefield scope similar to the Z73 ?



#13 Lead_Weight

Lead_Weight

    Surveyor 1

  • *****
  • Posts: 1,690
  • Joined: 21 Jul 2016
  • Loc: Houston

Posted 08 May 2020 - 07:16 PM

Nothing too wide yet, but I do have some images on my ES 102MM FCD-100. 

 

 

Coma Galaxy Cluster

get.jpg?insecure

 

M37 - 30 minutes

get.jpg?insecure

 

I never noticed before with my smaller chip and mono imaging, but it appears that the ES102 paired with the Stellarvue reducer isn't well corrected. I have some serious radial chromatic aberration and will most likely replace the scope now with one that's better corrected since this scope seems to be geared to smaller sensors.

 

I will be using my Redcat 51 with this chip as soon as the MilkyWay appears for me again, probably in another month or two.


  • artem2 and RichieS like this

#14 nyda83

nyda83

    Lift Off

  • -----
  • Posts: 15
  • Joined: 30 Jul 2018
  • Loc: Brescia, Italia

Posted 09 May 2020 - 01:11 AM

And here a mineral moon

get.jpg?insecure


  • R Botero, elmiko, artem2 and 2 others like this

#15 davidparks

davidparks

    Viking 1

  • *****
  • Posts: 723
  • Joined: 20 Jul 2017
  • Loc: Battle Creek, MI - USA

Posted 13 May 2020 - 09:44 AM

ASI2600 with the William Optics Zenithstar 73

(Clicky picky for details)

 

NGC7000
 
M101
 
M101
 
M81
 
M51

  • R Botero, elmiko, artem2 and 4 others like this

#16 smr

smr

    Explorer 1

  • -----
  • Posts: 76
  • Joined: 22 Aug 2018

Posted 13 May 2020 - 09:58 AM

ASI2600 with the William Optics Zenithstar 73

(Clicky picky for details)

 

Very nice. I have the same scope and I'm thinking about buying the 2600. What do you think of the Camera and how does it compare with the 294MC Pro?



#17 davidparks

davidparks

    Viking 1

  • *****
  • Posts: 723
  • Joined: 20 Jul 2017
  • Loc: Battle Creek, MI - USA

Posted 13 May 2020 - 11:02 AM

I really like the 2600, it’s been performing wonderfully.  The backlit sensor has no amp-glow, at least not showing in 5 minute darks.  This means you can probably use a single master dark with dark scaling, however, my process still uses matched darks.

 

How does it compare to the 294?

 16 bit ADC vs 14 bit ADC

  Slightly larger sensor (23.5 x 15.7mm) vs (19.1 x 13mm). (APS-C vs 4/3)

  Smaller pixels (3.76um vs 4.63um)

  Slightly higher QE%

  Both are cooled, but the 2600 also has Anti-Dew Heater

  Because of the higher resolution of the 2600, it has larger image files.  (50,969 vs 22,849kb)

 

With the Z73, the 2600 has a great pixel size, particularly for average seeing conditions, leaning to slightly under sampled in excellent seeing conditions, whereas the 294 is slightly under sampled with average seeing, and even more so in excellent seeing.

 

The 294 has been a great performer as well, particularly with the Z73, however, the 2600 is a grade better in every way, and the back-lit sensor is a real game-changer.  If the 294 is a $1000 camera (and it is), then the 2600 is definitely worth $2000, in my opinion.


  • JerseyBoy and smr like this

#18 jtrezzo

jtrezzo

    Apollo

  • *****
  • Posts: 1,001
  • Joined: 13 Mar 2017
  • Loc: Tampa Bay, FL

Posted 13 May 2020 - 08:51 PM

Here are my images with QHY268C so far (all thumbs link to Astrobin). It's a fantastic camera. I also wrote a review on my site here: http://cosmic-colors...qhy268c-review/

Horsehead Nebula 
get.jpg?insecure

Pleiades
get.jpg?insecure

Orion Nebula
get.jpg?insecure

Ced 51
get.jpg?insecure

NGC 3718
get.jpg?insecure

NGC  2841
get.jpg?insecure

NGC 4725
get.jpg?insecure

NGC 3521
get.jpg?insecure

M94
get.jpg?insecure

M83
get.jpg?insecure


  • sebastien79, R Botero, elmiko and 16 others like this

#19 smr

smr

    Explorer 1

  • -----
  • Posts: 76
  • Joined: 22 Aug 2018

Posted 14 May 2020 - 07:37 AM

Amazing images. Unfortunately I can't afford an f/3.9 or f/2.2 Astrograph as well as an ASI2600. 

 

I wonder how long I would need to be able to collect the same amount of data with my Z73's f/5.9 aperture say for instance on the Horsehead Nebula image above. I see that that was 2 hours integration.

 

The Celestron has a f/2.2 aperture I think?

 

I have similar skies (Bortle 5, 19.57 mag)..

 

Would be appreciated if anyone knows how many hours I'd need to achieve a similar amount of photons?


Edited by smr, 14 May 2020 - 07:38 AM.


#20 Lead_Weight

Lead_Weight

    Surveyor 1

  • *****
  • Posts: 1,690
  • Joined: 21 Jul 2016
  • Loc: Houston

Posted 14 May 2020 - 09:16 AM

Here are my images with QHY268C so far (all thumbs link to Astrobin). It's a fantastic camera. I also wrote a review on my site here: http://cosmic-colors...qhy268c-review/
 

Great images! I wish I had your skies. 1.9 hours on M45 looks amazing. It would take me close to 10 hours to get that in my bortle 8 skies.  Great review too. I love that you did some H-Alpha on the camera. I bought the filter drawer that ZWO makes to do just this.


Edited by Lead_Weight, 14 May 2020 - 09:37 AM.


#21 jtrezzo

jtrezzo

    Apollo

  • *****
  • Posts: 1,001
  • Joined: 13 Mar 2017
  • Loc: Tampa Bay, FL

Posted 14 May 2020 - 10:27 PM

Amazing images. Unfortunately I can't afford an f/3.9 or f/2.2 Astrograph as well as an ASI2600. 

 

I wonder how long I would need to be able to collect the same amount of data with my Z73's f/5.9 aperture say for instance on the Horsehead Nebula image above. I see that that was 2 hours integration.

 

The Celestron has a f/2.2 aperture I think?

 

I have similar skies (Bortle 5, 19.57 mag)..

 

Would be appreciated if anyone knows how many hours I'd need to achieve a similar amount of photons?

Yeah the RASA is a little ridiculous in how much photons it collects ;)

This is an oversimplification and I'm no PhD but you can get a rough calculation of this comparison concept with:

 

f-ratioSlower^2 / f-ratioFaster^2

 

5.9*5.9 / 2.2*2.2 = 34.8 / 4.8 = 7.25

 

So in theory it would take 14.5 hours to equal the 2 on RASA. However it doesn't really work that simply and there other factors. The biggest one would probably be the aperture and image scale. Larger image scale=more light per pixel. Your 73mm has 430mm FL and the RASA has 620mm, so you'd be sampling at 1.8"/px and I am at 1.25"/px. Then there's stuff like scope obstruction, reflectivity, transparency, skyglow, etc. This would shorten it a bit so maybe I'd guess like 10 hours? 

 

Great images! I wish I had your skies. 1.9 hours on M45 looks amazing. It would take me close to 10 hours to get that in my bortle 8 skies.  Great review too. I love that you did some H-Alpha on the camera. I bought the filter drawer that ZWO makes to do just this.

Thanks! Yeah it is very nice for adding some H-alpha to RGB images. I wouldn't use it for pure narrowband false color images, but you probably could get a decent enough result, just way less efficient.


  • SXBB likes this

#22 Gene3

Gene3

    Viking 1

  • *****
  • Posts: 798
  • Joined: 02 Feb 2016
  • Loc: Del Mar, CA

Posted 15 May 2020 - 04:22 PM

Here is my first attempt with the QHY 268C and my SVX152T

https://www.astrobin...846z/B/?nc=user

 

 

Attached Thumbnails

  • NGC2903 HR (2).jpg

  • R Botero, elmiko, John O'Grady and 11 others like this

#23 paolop

paolop

    Explorer 1

  • -----
  • Posts: 50
  • Joined: 03 May 2020
  • Loc: Portland, Oregon USA

Posted 16 May 2020 - 12:33 AM

Just ordered ASI2600. It already shipped and should have it next week!


Sent from my iPad using Tapatalk
  • tkottary and davidparks like this

#24 tkottary

tkottary

    Viking 1

  • *****
  • Posts: 532
  • Joined: 06 Dec 2015
  • Loc: SunnyVale ,CA

Posted 16 May 2020 - 12:51 AM

Were did you order from ?

Just ordered ASI2600. It already shipped and should have it next week!


Sent from my iPad using Tapatalk



#25 paolop

paolop

    Explorer 1

  • -----
  • Posts: 50
  • Joined: 03 May 2020
  • Loc: Portland, Oregon USA

Posted 16 May 2020 - 12:52 AM

Were did you order from ?


Telescopes.net in LA. They had a few in stock


Sent from my iPad using Tapatalk
  • tkottary likes this


CNers have asked about a donation box for Cloudy Nights over the years, so here you go. Donation is not required by any means, so please enjoy your stay.


Recent Topics






Cloudy Nights LLC
Cloudy Nights Sponsor: Astronomics