JSeaman

Tried to remember how to process stuff mostly  I only dusted my kit off last night for the first time in 9 months!

I did a quick stretch in PI and it all looked nice so moved to PS for levels/curves and a little color balance. Pushed vibration a smidge then back to PS with a starmask/star reduction.

Nothing fancy and I'm sure others will do better but it looks really clean and nice data

I think it looks good, I had a quick play just for fun and got this

Yes it's definitely past the best time of year, I'll probably add O3/S2 next Winter. Crazy having to think in terms of years for a photo but such is the astro way!

I had my first go at a mosaic, 3x3 panel of HA data. I guess it will be Winter before I can think about getting O3 and S2

You can take stills and feed those into registax with autostakkert, example below because I just did it a minute ago with an R5 and Sigma 300-800 lens!

What's the limiting factor, could you push 5/10 minutes?

I see, what duration subs are you taking?

I'm not seeing an issue with it, just a DBE in PI and then crop plus levels/curves in photoshop gave this:

I finally got a chance to try this and it worked well with the MPCC in the draw tube. I then had two problems:

1. The stock focuser kept falling down, I have just finished fitting my Steeltrack to test that later

2. The guiding using the 1500 focal length was crazy, it just didn't work at all. I have reverted back to the ED80 as a guide scope for now

As for removing the stuck fine pitched threads, I favour upside down on a rubber glove pushing down and twisting. Sometimes you need to pinch the corners with mole grips too

Oh ,sorry, the OAG has an M42 male thread rather than a nosepiece

The 1600 is 17.5mm (with the included 11mm ring) then 20mm for the FW and ~18mm for the OAG = 55.5mm, should be just about right hopefully!

It will be an ZWO 120mm mini

Hopefully this should work ... https://www.ebay.co.uk/itm/373811265924?chn=ps&_trkparms=ispr%3D1&amdata=enc%3A1lM2hbctmTyyKTMPQvGPouw18&norover=1&mkevt=1&mkrid=710-134428-41853-0&mkcid=2&itemid=373811265924&targetid=1394813963940&device=c&mktype=&googleloc=1006589&poi=&campaignid=15278604175&mkgroupid=135429446288&rlsatarget=pla-1394813963940&abcId=9300698&merchantid=505772724&gclid=CjwKCAiAhreNBhAYEiwAFGGKPFN7Oq5HFwspKwfzM4wyQRUDHngikL0sfh44cJTUZifzhXU8qbX2MBoC9O4QAvD_BwE

Nope it's in the OAG, it will work better if I can figure out how to attach the OAG's male M48 thread into the manual filter wheel's female M42!

Thanks all, I could put the coma corrector into the draw tube and then the OAG I guess, will have a play - thanks!

I have an MPCC Mark III coma corrector which is attached to my ZWO manual filter wheel (20mm thick). The other side of the filter wheel attaches to the ZWO 1600 and I have a ZWO OAG to add into the chain. If I put it in front of the coma corrector I cannot get enough 'in focus', is this something that has been overcome by anyone?

James

I used a VAG 118 (Audi), it has a 232m diameter and a 39.3mm depth with a 65mm centre diameter
 

Thanks, this is HA/O3/S2 using a ZWO ASI 1600

Less data than I'd like for this one but I managed to finish last night

This is an SHO version using Pixinsight and Photoshop

I stretched each layer and combined into an RGB then, using Selective Colour, I adjusted a separate layer to boost vibrance which was merged to pull out detail of the nebula

An agressive removal of red followed before some levels and curves then finished with a morpholigical transform which was selectively masked in

I did crop a tiny bit as there was some noise on 2 edges
 

It has taken me nearly 4 months to get enough data to produce this - NGC7380 or the Wizard Nebula

The hydrogen alpha was taken over 8 nights throughout July with 4.5 hours of usable data. 2 multisacle median transform, a light one across the whole image followed by a luminance mask to push the background. Then a layer with the unprocessed image was used as a selective luminance (masked by selective colour to only affect stars) for some of the bigger stars. Ringing was removed with another layer with 100 on the contrast dial then masked this in round the edges. Registax was used to add some wavelets then a minimum filter in PS to recover the stars.

I had to wait until September for some darkness and usable skies. 2 good nights of O3 data followed which gave just under 7 hours of data. I added 30 5 minute darks, 20 bias and 20 flats to this. The O3 was simply stretched and a star reduction was performed

S2 was all last night, I got about 6 hours in total with a bit of moon to fight with but good enough to pull out a picture

Yes this was pre coma corrector too, it's not without it's challenges but it works

My experience is that it is capable but not the perfect mount for it. I'm having over 30kg off mine and it's holding up pretty well for astrophotography, this is one of my best with a 300PDS ...

Settings were similar to those shown in the screenshot above, crack up the sliders high and sharpen as much as you can. If it gets pixelated then reduce noise

If you open registax then use as, does it not automatically open the file for you? I don't see a _conv file

Stacked in autostakkert and processed in registax (yes you use the output from AS), it's a good set of data

I quickly threw the jpg through registax, I think you can push it a bit further (play with sharpen/denoise as well as the sliders)