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Yeah I think there is some tilt in the imaging train but I'm not to bothered about it, I don't use Pixinsight due to myself running an old PC so I've been keeping things simple with SIRIL & Photoshop. If I can round the stars using any one of those I'd be happier as I don't have much room to fit a tilt adapter as I already have a filter drawer & rotator fitted.

I've been having a few issues lately with the RASA 11 V1, firstly the collimation went out for some reason so I eventually managed to sort that when we had a clear night, that night came briefly on Sunday night Monday morning, I had some Gremlins with the software & the Onstepped CGE Pro mount so I ended up recalibrating PHD2 which fixed it & I finally got imaging. I did rush the processing a bit as I had to go to work so it's literally a background extraction & colour calibration in SIRIL then removed the stars to stretch the image then popped them back in using Photoshop & flipped the image the right way. Equipment; Altair 26C camera, IDAS NBZ filter, RASA 11 V1 on a Celestron CGE Pro fitted with an ONSTEP kit. Forty, three minute subs stacked on DSS & Processed using the above method.

Awesome Peter Beautiful image.

Very nice mate

I've been using NINA a while now & love it, like you say a bit daunting at first I were the same after using other capture software for so long but after some time & figuring it out I can't see me ever going back. I can't see me ever using the advanced sequencer as my observatory will never be fully automated so I'll be shoving the dome round as & when needed lol.

You're certainly having fun with your new camera Mark & getting some nice results to, the 269C & 26C I run those at a gain of 282 with the offset at 47 (I think) but that's in NINA, I do find the settings to be very confusing at times but those settings seemed to work for me ok.

I've only just come across this thread & I have to say it's very informative as I have tilt issues myself & when using the RASA it shows up a lot more. I've got a tilt adapter so I'll be doing the same with the 26C I own, by looking at everyone's pictures I'm sure I can knock up something.

It looks to be performing well Mark very impressive, I loved my 269C & now I've finally got a 26C (Which is pretty much identical to the ASI 2600MCpro) a camera I've been wanting for a while now as it has the APSC sized sensor & that's been a great performer to. I've got a QHY8 fan cooled camera which is pretty old now & the performance between them the 26C is light years ahead. I think these CMOS cameras are great performers & I'm glad you're happy with yours. Look forward to seeing more images mate if these pesky clouds depart lol, clear skies!!

Lovely image

Cracking image that mate you always good at this, I use NINA & ASTAP for platesolving & image acquisition even polar alignment as there's a 3 point polar alignment feature you can use, so it's great to use in the field & in the observatory to. Took me a bit of head scratching to set it up to begin with but now I've never looked back.

The 183C is a good camera but be aware they do suffer with starburst amp glow although calibration frames should get rid of those, if budget allows the 533C is a better bet but they have a square chip, I bought a 269C last year from Kelling heath & it's been a great camera & this year I upgraded it to a 26C all of which don't suffer with any amp glow. All above were taken with the 269C from home, I'm especially happy to have captured the Helix nebula as that's been a target I've wanted to capture since starting this hobby & I were shooting through a lot of light pollution to get it. I don't know what filters you use if any but dual band filters really do help with emission nebulas to.

After returning from Kelling Heath Star party & spending more money I've tested out my new camera an Altair Astro 26C on the RASA 11, I did manage to nab about an hour & a half on the Pacman nebula but I really wanted to get a bit more data on a target so luckily on Thursday night I managed to get 3 hours 4 minutes of data on the Crescent nebula, I processed it the first time on the laptop as I wasn't home & it looked ok on the screen, but on looking at it on other devices it was looking way to red for my taste so the following day I processed it again using a different workflow than usual. I opened up the stacked file in Siril did a colour calibration & removed green noise, saved the file without stretching then processed the rest in Photoshop by doing some light stretches removing the stars then working on the image some more to bring out more detail. I do have a tilt issue in the imaging train so it's by no means perfect & will need addressing but I'm pretty pleased with the result for just a short integration time. I got home on Sunday night & even though the weather was saying it were going to be cloudy it were lovely & clear so I didn't really plan a target just found one & thought I'd have a go at Jones Emberson-1, I really need a scope with a lot more reach for this target & I had to drizzle & crop into the image to even get a half decent view of this target but I don't think it turned out to bad for 2 hours 28minutes worth of data, it's not really ideally placed at the moment so I might go back to it when it's higher up should we get more clear skies of course. Images taken using a RASA 11, Altair Astro 26C, IDAS NBZ filter.

Sadly it looks like the stump wasn't killed off & it's rising up again, it's still got a way to go but I can see my view being blocked again sometime in the future so I'll be concentrating on southern targets for as long as I can I think weather permitting.

Hi everyone This is a target I've wanted to capture for a long time but from my location it only rises to 17 degrees so a challenging one to get, we've travelled right down to the Southwest of England to try to get it but the pitch we were promised & the one we were given had a great big cow shed blocking the South view. We came home a bit despondent but as I've already had a go at some low down targets from home I thought I'd give it a go & to my surprise after starting the sequence in NINA there it was in the field of view. My South view is a lot clearer now due to a neighbour having a tree cut down but the town on the horizon especially the industrial units do produce a lot of light pollution so I wasn't having high hopes. After a couple of imaging sessions I did a stack & quick-ish process just to see what I got, the image looked a little soft which wasn't a huge surprise shooting through all that atmosphere & murk let alone the light pollution to but it had promise. So I went out again at every opportunity just to see what I could get, in the end seven hours 16 minutes & thirty seconds worth of data was captured, I did try some longer subs but in all honesty I wasn't seeing much of an improvement so kept them short at ninety seconds but I did combine all the data for the end result. I do envy those who live further South as this has been a challenge to capture but maybe I'll be able to get some more data next season. Starless image just to show more of the Nebula itself Equipment used; RASA 11, IDAS NBZ filter, Altair Astro 269C OSC camera on an AZ EQ6 GT mount

This might help Carl as I've followed a few of his tutorials with SIRIL it's nothing like Photoshop so if that's what you're used to then it will take a while to get your head round it but it is good & free. https://siril.org/download/