Wyvernp

Wow Dave. That's a set of images to be proud of.

That is definitely an improvement. What process did you use to reduce the noise? I used MultiscaleLineartransform on the Ha component on mine. perhaps not enough.

I have to say I'm not happy with the Ha data overall. I'll probably revisit this as soon as it's in my FOV from my back garden but with 20m exposures

In the meantime I have reprocessed and come up with this which I think is a little better.

Good stuff. Thank you!

Try now

Sure thing, The HA was taken at a couple of camera angles hence the crop. Thanks in advance for the assistance. masterLight-BINNING_1-FILTER_Green-EXPTIME_60.fit integration_Ha.fit masterLight-BINNING_1-FILTER_Blue-EXPTIME_60.fit masterLight-BINNING_1-FILTER_Red-EXPTIME_60.fit

Afternoon All, This one has been quite a while in the making as it seemed to get brushed to the bottom of the imaging pile, I finally pulled my finger out and finished off taking the RGB subs for the stars. and couple of extra Ha subs. https://www.astrobin.com/psc4hq/?nc=user Antlia Ha 3.5nm 36mm: 112x360" (gain: 139.00) -15C bin 1x1 ZWO 36mm Blue: 16x60" (gain: 139.00) -15C bin 1x1 ZWO 36mm Green: 16x60" (gain: 139.00) -15C bin 1x1 ZWO 36mm Red: 16x60" (gain: 139.00) -15C bin 1x1 Please do feel free to critique, it's mostly why I upload these as it's the best way to learn. Wyvern

That was nice clean data to play with and gradients aside a great image. Here's my take on on the data after giving it a quick process in PI Cheers, Wyvern

63.5mm produces a nice flat field for me.

Yes indeed. It is now fully operational and works really well. The the main issue with the stars was simply backfocus, the 31mm adapter tht comes with it is just too long for my scope so I had to buy some adapters and m48 spacers. The second issue I found was that this camera does not like being connected to USB hubs or extension cables, or at least mine didn't.

Afternoon, Thought I may as well throw my hat in the ring as well. I used a bit of a custom channel mapping with this one, but it's roughly R=Ha, G=SII, B=OIII Unfortunately I don't really have a process to share as I tend to just do stuff until I like the look of it. Final polish was in photoshop which was just some levels, saturation etc. Wyvern

Thank you for all your Kind comments!

After a few pretty nice nights I've managed to capture M31and M33 in HaRGB and M45 In RGB M31 20x R 240s 20x G 240s 20x B 240s 20x Ha 300s M33 20x R 240s 20x G 240s 20x B 240s 20x Ha 300s M45 30x R 240s 30x G 240s 30x B 240s I'm liking how each has turned out. Feel free to pixel peep and be brutal Wyvern

If you haven't watched this already it should answer all your questions.

Really Really nice! I had no idea there was anything other than Ha in this object. Still collecting data for this one and I will add SII to the mix. Thank you for sharing!

Very nice too, love the star colours and some nice nebulosity showing. This is a hard collection of nebulae/star clusters to frame, I'm currently imaging this myself and am not as happy as I could be with it.

Just wow! fantastic result and thanks for the info about it too!

@DaveL59 snap!

That's exactly it, just make sure the subnet mask is the same, default is 255.255.255.0

I'm not a mac guy but I do know a thing or two about networking. How have you set up the IP addressing on both the mac and the pi?

Had a quick play in Pixinsight and there's actually quite a bit of data here! It looks like you have a bit of coma which is deforming the stars, I haven't used camera lenses for astro so not sure I can advise what is the cause. Anyway here's my take on your data.

Could it possibly also be the barlow magnifying the effect of coma? or even affecting the backfocus distance? Do you have any pics taken without the barlow to compare with? The only reason I ask is that when I use filters I have to account for their thickness in the backfocus calculations, I'm not sure if the same applies to a barlow? edit, missed that you were usung the mpcc III corrector

Hi, It does seem to be some sort of aberration, what scope/correctors are you using? and also is your camera sensor at the correct backfocus distance? don't worry if you don't know the answe to the last one as we can probably help figure that out. Wyvern

Calibration and stacking will be no different, the only time I can think of that it changes will be the additional step of combining when using a mono camera which isn't the case here.