Gary Clayton

Might be worth having a word with Altair Astro as well?

Yep not a bad price, I sold mine for £650 last year

Will do, just give me a day or two.

Seem very short for dark frames, that being said they do look very odd and nothing like my 300 second darks from my IMX571 camera.

Have a word with Altair Astro as they do Ioptron repairs in the UK

I use a cheap Beelink mini pc with PHD2 and NINA with my Altair 26M and use the inbuilt  native camera driver, you do have to install Ascom any other drivers/software that you might need for other equipment but once done it's  a very reliable system that has fully automated my imaging sessions. 

NGC1499 the California nebula in the Hubble palette, 98 x 5 minutes sub for a total integration time of 7.9 hours and taken last night. 
Antlia 3.5 nm filters
Altair Astro Hypercam 26M
StellaMira 90ED
Ioptron CEM 40

NGC 281 the Pacman nebula taken last night, 107 x 5 minute subs for a total integration time of 8.9 hours.
Antlia 3.5 nm filters
Altair Astro Hypercam 26M
StellaMira 90ED

Ioptron CEM40

The Clamshell nebula, SH2-119 using just 2 hours each of HA and SII as the OIII data was so weak, along with some artistic licence.
Antlia 3.5 nm filters
Altair Astro Hypercam 26M
StellaMira 90ED at it's native focal ratio

Around 6 hours worth of data and cropped in to the central region

Antlia 3.5nm filters

Altair Astro Hypercam 26M
StellaMira 90ED at it's native focal ratio

1 hour ago, Peds said:

That's very nice Gary, I love the colours!

- Pedro

Thank you

The North American and Pelican nebula in the SHO palette 
21 x 5 min HA subs
21 x 5 min SII subs
21 x 5 min OII subs
Altair Astro Hypercam 26M
StellaMira 90ED at it's native focal ratio

18 hours ago, windjammer said:

Stars looking a bit eggy in the corners ?

Yep have some tilt or back focus to sort out since just going mono

The Fish head along with Melotte 15, at the centre of the heart head nebula in the SHO palette and taken last night.

20 x 5 min HA subs
20 x 5 min SII subs
20 x 5 min OII subs
Altair Astro Hypercam 26M
StellaMira 90ED at it's native focal ratio

NGC7822 in the SHO palette, shot last night.
20 x 5 min HA subs
20 x 5 min SII subs
20 x 5 min OII subs
Altair Astro Hypercam 26M
StellaMira 90ED at it's native focal ratio

1 hour ago, Lee_P said:

Just out of curiosity I ran the image through PixInsight's CorrectMagentaStars script. I rather like the shade of blue that came out. Just my personal taste! It's a great image either way, congrats to @Gary Clayton

One area that I struggle with is colour balance, with not be very arty in nature. This version looks a lot calmer than my original.

Could Admin please move it to the correct section please

8 hours ago, windjammer said:

>>as the HA signal is the strongest what ratio do you use?

I use PixInsight for the early stages of processing, which includes a function called linfit which basically brings the peaks of each of the Ha/Sii/Oiii histograms into alignment before channel combination.  So they are evenly balanced, which I guess answers your question !  I find this avoids a load of issues down the road.

You might this further info on carastro's selective colour useful if you haven't come across it:

http://bf-astro.com/hubblep.htm

You have done a great job already BTW!

Simon

Thanks for your insight and the link, I will look into these options

14 minutes ago, Jonny_H said:

Thanks Gary.

I plan to use a 2600MM with the SM 90ED.  Do you use the same camera?

Regards,

Jonny

Hi Jonny

I am using the Altair Astro version of the 2600MM, the Hypercam 26M.

2 hours ago, Jonny_H said:

Out if interest, which sized filters is everyone using with this scope and for which camera?

Very much debating on 36mm or 2".....very conflicting info on this topic!

Regards,

Jonny

With my APS-C sensor I am using 36mm unmounted filters with on issues at all.

2 hours ago, carastro said:

I generally do twice as much Ha  to the other filters, despite it being the stronger signal as you need that for the fine detail.  Generally the other colours are just that, colours,  with a few exceptions.  I use photoshop and adjust the colour sliders in image adjust selective colour using green to adjust the Ha in the green channel and lifting the Cyan in the Cyan channel for the blue and reducing yellow in the Cyan slider also brings out the blue.  This might not help with the software you are using though from the colour adjust point of view. 
 

You look to have done an excellent job.  

That's interesting I had not thought of it like that, something for me to try next imaging session.

Thank you.

My first mono SHO image of the Soul nebula and a question for the  mono experts, as the HA signal is the strongest what ratio do you use?.
As this was my first attempt at SHO using NINA I setup the filter focus offsets and then ran with just doing two subs of 5 minutes on each channel.
Antlia 3.5nm HA 20 X 5 minute subs
Antlia 3.5nm OIII 20 x 5 minute subs
Antlia 3.5nm SII 20 x 5 minute subs
Altair Astro Hypercam 26M
StellaMira 90ED at it's native focal ratio

The Lobster Claw Nebula and Bubble nebula's shot last night, 52 x 5 minute subs.

HA/OIII OSC filter
StellaMira 90ED
Hypercam 26M

IC 1396, I used both OSC data from early on in the year and mono HA data taken last night, so a blend of both using LRGB combine in PixInsight.

The EZ SoftStretch issue has been fixed now, I can confirm it's working for me https://pixinsight.com/forum/index.php?threads/ez_softstretch-resurrected.21314/#post-131825