mackiedlm

That's a stunning image. Fantastic detail.

3 minutes ago, Synchronicity said:

WHat a fantastic image!  Is this the type of filter you are using? https://www.firstlightoptics.com/light-pollution-reduction-imaging/optolong-l-enhance-narrowband-deep-sky-imaging-filter.html ?   I might need to ask Santa for one 🙂

Michael

Yes thats the one. There is a new one, the l-extreme which has narrower bandpass and is getting great reviews. But I have seen it mentioned that it may not work as well on DSLR (what I use). But you should ask around.

12 minutes ago, Stuf1978 said:

Thanks, that's something to start from. Can always download the trial version of APP and see how I get on. 👍

Personally I can't rate APP enough. It does a great job of stacking, it allows a high degree of flexibility for calibration frames, and the gradient removal and colour calibration are superb if you are taking them in to PS.

I'm new to pixinsight but have tried it for pre processing but I think i will continue stacking with APP

2 minutes ago, alan potts said:

Lovely shot there. I got rid of my L ehance filter as I didn't like, had I have known you could do that I may well have kept it, live and learn.

Alan

Thanks Alan. Yes I know what you mean. I've not had mine that long and while I like the images I've done with it so far I've felt they were a bit, I don't know, uninspiring? But being able to take images with LP and even some moon made it worthwhile. And this adds another dimension to it altogether.

1 hour ago, Stuf1978 said:

Thanks I'll take a look, I have the photoshop action set as well so I'll have a play around. Is the splitting of the channels done on the linear data? 

In App yes. I don't know if you can split channels in DSS. But in PS  I'm not sure what the best way would be. I'd probably do a first stretch to see what I had, crop, then pull the individual channel data at that point. But I've not done it so...?

Read to the bottom because you can do it without PI.

So initial splitting of the channels was in APP using the "extract Ha and Oiii" algorithms. Further processing was indeed in PI following this 

 BUT.. I'm pretty sure you could do it in Photoshop if you know your way around it. Copy out the R & B channels, work them separately using levels and curves. For recombine if you have carbonis actions that would work but if you are good with PS I expect you'd do it manually. Watch the video, and I'm sure you will be able to translate it to your own application.

Good luck and do post your result.

Continuing to play with this different way of processing L-Enhance data. This heart is from data captured a few weeks ago.

EOS700Da, SW 80ED, NEQ6
100 X 180s ISO1600
L-Enhance Filter

I really cant make up my mind about this - it feels strange producing this type of image from a DSLR - but I do like the colours in the images. Mostly!

Interested to hear your thoughts.

Great details and colour. An unusual framing for this target but i like it.

This is a first effort at a new -to me anyway- processing technique for data from the l-enhance filter. This involved extracting the Ha and Oii in APP, stretching out the Oiii data then recombining with pixelmath and using the Ha as a further luminance layer. Its fairly rough I know and I'll have another go at it to improve the overall image but purely from the colour perspective I  think its interesting.

SW 80ED, EOS700Da, NEQ6
L-Enhance filter
60 X 240s ISO800

thats a superp image. Fantastic detail and great colour.

that is outstanding - just fabulous.

This is a repro of an image I posted a few weeks ago. This time using starnet to allow work on the neb alone. Definite improvement in colour and detail - BUT (aint there always a BUT!!) something weird is going on in the stars now - looks like some type of chromatic aberration but it was not in earlier versions so I really dont know what happened here. Any ideas?

8" LX200 GPS, on a wedge, Canon EOS1100D

120 X 180s

First rev is here

Nice image. Great structure in the dark lanes

thats really good. Nice framing, good colour in the nebulae and lots and lots of stars!!

That is just stunning. Fantastic image.

Thats a fantastic image. Personally i'd say with the level of detail and resolution its is about spot on as it stands - does not need RGB stars.

So after my earlier Wizard on the LX200, this is a wider field image from the SW 80ED

SW 80ED, EOS700Da, NEQ6
L-Enhance filter
60 X 240s ISO800

1 hour ago, ollypenrice said:

SCNR green has always worked well for me. Did you try the slider at various settings?

The method you used in Ps was OK and I got a similar result, maybe using a slightly different technique. In Ps I opened the histogram in All Channel View and moved the black point slider (per channel in Levels) to the right to align the top left of the blue peak with the green, as below. I don't know why the red historgram has this strange form. But the idea was to use the black point slider to get the top left of each peak aligned. I also brought the black point in in red as well. That's probably the biggest difference between yours and mine.

Feeling the bright star was a bit green, still, I did a further tweak in colour balance adjusting the highlights.Marginal difference.

I think we can expect the L-enhance filter to bring down the blue channel because OIII only passes the greenest blues and H-Beta is blue but very faint and is given out only by those gasses also shining in Ha. Broadband blue is blocked, if I have this right.

Olly

Thanks for taking the time at that. I did try the sliders in SCNR but it was looking awful. I have used SCNR on other images to great effect.

In PS I just put a sample point in the background and adjusted green and blue channels - your way looks more flexible- I'll try it.

36 minutes ago, ollypenrice said:

We all have similar tales to tell! What you do know is that with more data you'll get a really great result.

For me the green needs attention since it's rather high both in the dark dust and the stellar cores. Not a difficult adjustment, though.

Olly

Thanks so much for that @ollypenrice. I have to admit I had not even seen the green until you pointed it out.

I took it back to Pixinsight (in which i am a true beginner) and ran SCNR but that made things much worse! Also tried HLVG in Photoshop - also worse. So I manually balanced it in levels - the blue needed to be brought down too - giving the image below. I am not experienced enough to really say if this is better - its brought out much more red in the background - possible too much? Would you suggest a different method to sdjust the green?

Thanks again for the advice.

Continuing with the too rare run of clear nights I had both rigs out at the week-end. But of course the moon is getting bright. While the LX200 was clunking away on the Bubble in Ha , I set the 80ED with L-enhance to the Pelican and hit go. It ran for 7 hours and even did perfect Automated meridian Flip. Then when I went to do my flats in the morning I see the lens covered in condensation!!!! I had failed to turn on the dew heater

I managed to use the first 2 hours of images consigning FIVE HOURS to the bin So its really a bit noisier than I had hoped for.

So
SW 80ED, NEQ6, EOS700Da, L-enhance
28 (hear me sob) X 240s ISO800

These are nice. It was a nice change to have some clear sky in Ireland last week! I had my kit out too.

I only do OSC at the moment so cant help you  in terms of colour duration. But having done this target a couple of weeks back (during our last good night!) I can tell you I found it a harder target to do well than I had expected.

Good luck and hopefully this will be a run of clear skies.

David.

That's really nice. The star colors are great. I did  nearly the same image last week with a DSLR and L-enhance but I  struggling to process it because of the noise.

Those are really good for such short I integration.

That's nice but personally I prefer the version you posted earlier. I think it seems sharper and I prefer the colour. But that's just my own taste I guess. 

The Bubble nebula is one of my favourite astro-images and I have wanted to capture it since I first started this just over a year ago.

the plan is to get some RGB to add to it but for the moment I'm happy just to have managed to get it.

95 X 240s, ISO1600 EOS1100Da
8" LX200 GPS Wedge, 0.63 FR / FF
Astronomik Ha 12nm Clip in filter