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I keep reading every now and then that a specific camera has this advantage of ZERO amp glow, or forum members concerned about the amount of amp glow in specific camera models they are researching for their next purchase etc....even camera manufacturers advertise on their spec sheets that a certain new sensor has ZERO amp glow etc? I'd like anyone to explain to me the benefit of that? What is the point, really? As an example, my 294MC Pro has obvious amp glow on exposures at and above 5 minutes and -5C. The glow is exclusively at the edge of the frame. It has ZERO effects on my imaging experience, and calibrates out completely with some darks. And we all know that we take darks just ONCE, or maybe yearly for the fastidious. Similarly, a 2600MC Pro or 533MC Pro has ZERO amp glow, but almost everyone using those cameras will still take some darks to make sure they have well calibrated images, and make sure they have got rid of any hot/cold pixels etc. Some might say that they do not take darks with those cameras at all, but surely, if one would be aiming for an APOD or AB's IOTD, they most certainly will take darks, even with the IMX571. So, what is the point of LACK AMP GLOW in the first place. Why is it even an issue that keeps being mentioned? Full well depth, QE, Dynamic Range, sensitivity, cooling etc...all those parameters make a real difference, but amp glow, I find it strange that its even mentioned. To my mind, its comparable to that pesky dust particle stuck on your filter, that will completely calibrated out with your flats? To summarise, under what condition would AMP GLOW be detrimental to a final image?

New Mono CMOS cameras are CONSIDERABLY more expensive than their OSC counterparts. On top of that you need a filter wheel and SEVEN filters. I would say that a mono setup can easily amount to DOUBLE the price of a similar OSC setup, if not more.

Morning everyone Does anyone have any information on Optolong's 3nm dual band OSC new filter? Its supposed to be called the L-uLtimate filter? I am considering buying the L-eXtreme, but I watched a video yesterday by VISIBLE DARK on YouTube reviewing this new filter and comparing it to the L-eXtreme? Also, CUIV THE LAZY GEEK, released a video a couple of days ago regarding a similar new dual band OSC filter by Antlia, called the Golden Filter. That one is a 5nm bandpass. The L-eXtreme is 7nm in both bandpasses. Does anyone have idea on availability and pricing?

Many thanks I have never heard or seen any prior reference to Mure Denoise before? Where is that? Cannot see it in the processes? For denoise I initially used MLT with an inverted linear mask when I started using PI last tear. Recently I have moved to the EZ Processing suite; EZ Denoise. Is Mure Denoise superior? Many thanks Ossi

Many thanks for your reply! that’s very helpful. and CONGRATS OF COURSE!! Sorry, last question. Moving to Astrodon, was it night and day?

Many thanks for your reply! that’s very helpful. and CONGRATS OF COURSE!!

Excellent! Finally someone out there who uses/used these filters! So, overall, are you happy with the filters? From my research, I think that almost ALL O3 filters suffer most from halos, except for the Astrodons and Chroma. Were you satisfied with the Halpha and S2 6.5nm filters?

Yes. But the new Baaders are just £125 more for the set!? So, obviously not that cheap? Wish someone who has actually used them pick up on this thread and provide some feedback. I doubt they would be rubbish compared to Optolong/ZWO and similar cheap NB filter offerings. I generally have had god experience with Altair products.

Just did a quick search on Antlia. I could only find them on RVO. The 2” are all 3nm Pro series. The three filters are £1374!! Thats an entirely different price bracket!

Evening everyone I’m slowly assimilating my future MONO setup I’m planning on getting 2” LRGB and NB filters, even though the plan, for now, will be an APC-S sized mono sensor. For filters, my eye is on Baader’s new CMOS optimised filters, but I’ve read some negative comments with regards to halos on CNs. I’m looking at the NON F2 filters, as my scope is an Esprit 100ED f/5.5. I realise that short of Chroma and Astrodons, all filters will have issues. The Baaders are not CHEAP. £580 for the 6.5nm set and £915 for the 3.5nm set. So, I’m thinking of getting the Altair Astro NB premium set. They are 2”, 6.5nm and £475. I’ve seen ZERO reviews or feedback on the internet regarding their performance or quality? I tend to like Altair’s products, and anything I’ve bought or used from Altair has always been QUALITY. Whats the word on these filters? Would be immense if someone can give me some feedback on them? Many thanks

and here is the script applied: SCRIPT ---> UTILITIES ---> CORRECTMAGENTASTARS

Many thanks! Glad you like it!! Yes, I know the trick. Invert, do SCNR Green, Invert back. PixInsight now has a process that does it in one click: SCRIPT ---> UTILITIES ---> CORRECTMAGENTASTARS

Hi everyone Its a full moon these nights, but yesterday I had the first clear night in almost a week, sort of. I had a few hours where the clouds broke, so thought I would give the L-eNhance a go at the full moon. I processed this with the fake Hubble palette. WO Star 71 5 element apo - ASI294MC Pro - LeNhance - 44 180s subs (2 hours) - Ds - Fs & DFs. Obviously will need much more integration time to control the noise better, but I guess its alright? Ossi

Stunning!! Exceptional detail!!

yes, of course. But I wanted to try working on the separate channels, as my latest M33 project has tons of LP, and working on separate RGB channels might help me process better

No, it just kind of made me pause and think about it a little more. Considering its a big investment, I've decided to save a bit more and get the Mono version at some point. I have not seen or read about any issues with the 2600MM version.

I have been using PI for the past year, and have been processing my OSC data from my ZWO ASI294MC Pro. I have NEVER processed Mono data before, meaning that I have never worked with R,G & B separate channels before. With the new WBPP 2.2 which has this new option of Debayer RGB Separation, can some one please give me a broadline how to process my data moving forward? With my current processing work flow, after the regular WBPP, I get a MASTER RGB file. I do Dynamic crop, DBE, PCC, EX Denoise, a tiny bit of Arcsinhstretch followed by the Histogram stretch. On the NON Linear image, I usually then do Starnet, and work with the starless image: Curves and colour saturation, and possibly some HDRMLT and TGV denoise. Deconvolution is according to the target. With the NEW WBPP2.2, I now have 3 separate channel Masters. Do I follow the same processing workflow on the separate R,G & B Masters? Do I do my regular Dynamic crop, DBE, PCC, EX Denoise, a tiny bit of Arcsinhstretch followed by the Histogram stretch on EACH Master separately? If so, at what stage do I combine them in RGB combination? When they are in LINEAR or NON LINEAR stage? Many thanks Ossi

It’s actually an increasingly common issue with the Color version of this ZWO camera. There are two very long threads regarding this issue on CNs. Maybe the batch we got here in the UK has less of an issue? Not sure. This is the main reason I’ve been holding off buying this camera, as the reviews and results overall are very positive. Don’t quote me on this, as I’m not sure, but I think that the QHY, Altair and other versions do not suffer of this silicon/oil leak. I believe also that the ZWO MONO version does not have this issue.

I’ve decided to only buy 2” filters. I already have a 2” RGB set, 2” ha and o3. I decided to go 2” sometime ago, so as to not worry about any future mono camera purchase.

Is this what you had in mind? https://www.firstlightoptics.com/baader-filters/baader-uvir-cut-filter.html It says discontinued? No stock?

Oh, I never thought of that. Yes, I think the 294MC Pro just has AR glass, but no IR/UV coating. I do not have any UV/IR filters. The filters I have are L-eNhance, IDAS D2 and V4 Would the D2 LP filter be a good option? Alternatively, does Baader do a 2” UV/IR filter?

Thank you all for your replies. Here is my RAW data: 372 120s Lights (discarded quite a few), Darks, Fs & DFs. https://www.dropbox.com/sh/8pazqynoadupch9/AACewrQUy3ZAZSG_JcdNtAvGa?dl=0 And here is my version of WBPP: https://www.dropbox.com/sh/vs2tet3hfm98xol/AAApMMnk1Yj-XUZJ6FteKvPGa?dl=0

I haven't changed my calibration routine and stacking in ages. WBPP 2.2. ALL STOCK, except choosong GALXY in Weighting, and RGGB for all the Lights. 50 Fs, DFs, & Ds The above was just before I applied SCNR. Here's what it looks like after SCNR. And here's the final image. Something's not right? Andromeda, that I shot last month, with the same exact setup was much easier and cleaner, with some great colors?

Good evening everyone. After spending the past few months focusing on Nebulae, I had a go at M33. Considering its a Broadband target, with some areas of Halpha, I decided to shoot it WITHOUT any filters, following advice I received on Cloudy Nights. I am over 12 hours into imaging, and I am not happy with the result. The image is very MONOCHROME, with barely any color. The filters I have at my disposal are the Optolong L-eNhance, IDAS LPS D2 and the IDAS LPS V4. My skies are Bortle 8-9, and I was advised to aim for 20 hours, but I do not see that any more data will bring any color into this project? I was advised to use ELLIPTICAL GALAXY option in PixInsight's PCC, as well as ARCSINSTRETCH to bring out some color, which it did, but very very faint. The scope I am using is not the best for the target, agreed, but surely after more than 12 hours I should be doing better? Scope: WO Star 71 5 element Apo, ZWO ASI294MC Pro and NO FILTER. 120s subs, 400 subs so far. Here is a screenshot showing my Master Light having had Dynamic crop, DBE, PCC, EX Denoise, Arcsinstretch and histogram stretch. When I then proceed to Starnet, Curves and Saturation, the colors are barely there, and I somehow need to force color into the image. You can see that in the histogram I have NOT MOVED the middle slider LEFT, as doing so BLOWS OUT THE WHOLE GALAXY! Would using the IDAS LPs D2 help at all? or the L-eNhance? Please help!! I've been imaging M33 over 5 nights, and I feel beat.

I did stress on QUALITY in the example I gave above. By quality cameras, I meant a high end top quality camera, like a 6200MM or 2600MM. Those are rare as hens teeth on the used market, as there probably isn’t a BETTER step up camera than those two in the amateur AP market. Those two examples are usually bought by imagers who have some years of experience in the hobby, and would not go back to just OSC. I would not count any of the 1600MMs or older CCD mono cameras in the search. I will take an educated guess that almost all those selling a 1600 or older mono CCD camera are probably upgrading to a better mono setup, like the 294MM or 2600MM. Very rarely you will see a quality high end mono full setup for sale, including camera, FW and filters. Those are usually up for sale by a beginner who enthusiastically got into the hobby, spent a lot upfront, got overwhelmed by the whole process, and either chose to just give up and go back to visual, or go the easier route of an OSC.