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Result of subs over 3 broken cloud sessions. 10x 300s subs processed in PI & PS. TS RC8 @f8 (1624mm fl) with an ASI533 MC Pro and Baader UV/IR cut filter. On an iOptron CEM60 mount. Guiding PHD2 (v?) capture (2 sessions SGPro)(1 session AstroArt 8 ) - after lots of problems lately with SGP I think I'm switching to AA 8. Hope you like.

I've just bought AstroArt 8 having got really frustrated with SG Pro (v4....). I used AA? many years ago and reloaded the software on an old laptop and away it went like yesterday. Not so many features in the old version and looking at the demo of v8 and comparing it to SGP I made the decision to change over to AA8. Will see how it goes.

Short session last night due to the moon flattening everything once it creaped above the horizon. Still happy with this one. TS RC8 @ f8, UVIR cut filter, ASI533 MC Pro gain 0. 7x 300s. Processed: Stacking and initial processes in PI then a health tweak in PS CS3. Thanks for looking - I hope you like.

Listen to Olly he knows what he's talking about. You can start more cheaply, why not get a small mono (guide camera ASI120mm or similar) use that initially as a main camera and use via ASI Studio (free) software so you get to know how astro photography kit works. Then get the better cameras and use the smaller mono as it was intended as a guide camera. Initially forget about filters just get yourself comfortable with operating the basic set-up. You won't get the best images but you will learn far more quickly what is happening. Then start evaluating add-ons...

I have one of these under my 16 inch Dob (450mm OD).

I use anodised aluminium strip from b&q against PTFE blocks. Bends easily and can be glued or screwed in position.

You could make a hinged assembly. Open up between filters and then close down again...

That's a really good bit of imaging - well done.

Image changed. Now a combination of 2 nights 28x 300s (2hrs 20m)

A combination of 2 nights: 28x 300s processed in PI and tweaked in PS Scope TS RC 8 @ f8 Mount iOptron CEM60

If your using PI as you processor then you need to use SCNR at an early stage. That will remove the green bias. ABE will sort out the background or DBE which can be tailored to suit different images. Rather than doing your stretches in STF (nothing wrong with that), try using the Curves Transform. You’ll have more control. Use it in combination with Saturation. You can use saturation on individual colours or as a broad blank increasing or decreasing saturation as needed. Later you will use masks for even more control. Happy processing

22x 300s subs taken earlier tonight. TS RC 8 @ f8 with an ASI533 cooled to -15° C. Mount iOptron CEM 60. Processed in PI and PS

NGC3718 and others. Scope: TS RC8 @ f8 Camera: ASI 533MC Pro 0 gain -15°C Capture: ASI Studio, PHD2 guiding Subs: 13x 300s Processing PI and PS Struggle last night. First SGP refused to center the framing even though the object was in the field of view. I even went back and installed an older version but the same result so I switched to ASI Studio, there's no way to select a dither with ASI Studio (hint to ZWO) so that has contributed to some noise but focus was a problem and I've ended up doing some sharpening in PI (convolution) with a luminance mask to try and control where sharpening took place. Easter bunnies were removed in PS and the image resized. I'll go back to this group another night...

@Stu Great write up. I finished building a 16 inch with John Nichol optics late last year and really enjoy getting it under a clear sky. I'm hoping this haze clears today so I can have another session. Clear skies

I have a 533 and it’s superb. Virtually no noise making processing much simpler. And v sensitive too. I changed from a 294 to the 533 due to the amp noise in the 294.

Nikon have different pin/sockets to connect to, make sure you chose the right connector for your Nikon. e.g. I have 2 one has a 10 pin connector the other has a little rectangular connector…

Captured 8x 240s subs 1250 iso on a modified Nikon. The moon had pretty well swamped the image so I tried combing it with a colour image shot a few days ago. Two images rotated and combined in PS. TS-RC8 at f8 1624mm fl.

Well fog and a nearly full moon were not the right bed mates to shoot the Eskimo through last night. RC8, NBZ filter, mono modified Nikon D5100. iso 800 @ f8 and processed in PI (stacking - took ages!) & PS. Subs: 65 @ 15 s, 1 @180s cropped matched and merged in PS Must try again on a clear moonless night (some hopes!)

Centre of the Rosette nebula tonight through fog. This is a monochrome image taken with a modified Nikon. 7x 300s, 1250 iso using an RC8 @ f8 Processed in PI.

Are you using the'guide using multiple stars'. I've had the main green cross not be on a star but a number of little green circles sit around stars across the fov and guiding is good anyway?

Two mounts for me. First my current mount an iOptron CEM 60 standard non EC version then an Avalon linear fast reverse EQ mount. Both mounts work(ed) very smoothly. Didn't like my NEQ6 Pro.