@@jurgenlandrie1380 Thank you for the comment and Happy Holidays! The stacking steps highlighted in the video apply to any mono channel - including data captured with L,R,G,B filters. I have a separate video that covers manual stacking of color (RGB) channels. The steps are essentially the same, though there is a debayering step needed to ultimately generate the final Master light. All the best!

@@AstroDNAObservatory Thank you for your quick reply! I am watching all your videos so I'm sure I'll find the other one. Happy Holidays and clear skies!

Sorry to bother you again, but when RGB compositing my separate stacks, It says my green channel is "Not OK". Maybe you might be OK with me sending you an email on this matter? Thanks.

@@telemonkindeed f/10 is fine if you have good guidance! Happy Holidays!

Thanks for the comment Max! Happy Holidays!

Thanks, @telemonk! I am loving the scope, very happy with it's DSO performance. Once the snow clears, I am deploying one of my refractors again. Sooooo cold in my neck of the woods. Happy Holidays!

Thanks, Gene. Glad the video was helpful!

Interesting thought - I hadn't considered that. I am leaning towards a stacking issue on my end. I would need to study the subs carefully to be sure. If the artifact appears in the subs, then you may have the right theory!

It was a fun one! Thanks for the comment!

Good to know! Thanks for the feedback. I hope the video was entertaining none-the-less...

Thank you for the comment and question! I have a C8 and a C11 with two different focusing mechanisms. On the C8 XLT, I have a ZWO EAF with coupler and an adapter plate, that directly drives the focus knob. On the C11, I leave the knob as a manual adjustment and implemented a crayford focuser in line with the optical path and use an ZWO EAF on its focus knob. I did a video on this setup a few months back. I prefer the C11 setup in general. Being able to coarse adjust with the manual knob and use the EAF for fine focus gives me alot of versatility - which comes in handy when doing collimation and planetary imaging. Check my video on the focusing system I use for the C11 for more info. I hope that was helpful! Best!

@ That’s was hopefully I’ll give a try based on your video Thanks so much

Thanks, Rob! I enjoyed the process. Cheers!

Stay warm and get that shot! Cheers...

Go refractor guy! I plan to re-deploy my AT115EDT soon, love my refractors! To your question - YES, the challenges I outline apply to all SCTs - with one nuance. Some SCTs do have mirror locking mechanisms that mitigate mirror shift and flop. I do not own an EdgeHD, but I do believe they have mirror locking screws which should help. The primary advantage of the EdgeHD is the inclusion of additional optics to flatten the field - reducing spherical aberrations across the image circle. Thanks for watching and commenting!

@@sergeyyatskevitch3617 thanks for your comment. I find the best results are when the final movement of the focus knob is counter-clockwise. This causes the focus arm to press on the primary and I believe that helps to mitigate mirror shift/flop. I follow this practice when collimating as well. I defocus the star via a clockwise turn and iterate on my collimating adjustments as I bring back focus in counter clockwise turns. Unfortunately, SCTs without mirror locks suffer from mirror shift. But they are such light buckets! Thanks for your question!

⁠@@AstroDNAObservatoryThank you. This is an interesting bit of information. Will try. Just to clarify, when you say “clockwise”, I would assume it is towards the lesser focuser numbers. Is this correct? Cheers!

Relative to the physical knob - Clockwise rotation (mirror closer to the corrector): Moves toward outside focus. Counterclockwise rotation (mirror farther from the corrector): Moves toward inside focus. Just confirm how your EAF is configured, it may match this or be reverse of this. Observe the physical motion of the knob in response to the direction of your EAF to verify. Hope this helps!

@@AstroDNAObservatory Yep, tested my celestron focuser today. Looks that CPWI icons and the actual movements of the shaft are quite opposite :), but thanks to your advise I know what to do. Appreciate your advise and will follow your channel. Cheers!

@@sergeyyatskevitch3617 Awesome - I am glad I could help! Cheers!

Hi, Steve! I use NINA for my session and you can set the gain and offset in two places. First, you can default values in the Equipment/Camera area. I use gain of 140 and offset of 25 as default values. You can override these values used by the camera in the Advanced Sequencer where you specify your exposure settings. You can also do it from the Image area if you are just taking snapshots. Every software application is a little different, but I think they all allow for gain adjustment. I hope that is helpful - let me know. Thanks for the question!

I have been using the dual band pass filters exclusively (Askar D/D2, and Optolong LeXtreme). I think the performance will be a function of the filter itself, the ASI2400MC Pro is a very good and reliable camera in my experience so far! Cheers!

Thank you! Cheers!

The livestacking feature in Sharpcap is very impressive. AstroSurface is an excellent all-purpose post-capture solution. Very nice indeed. Thanks for the comment!

Yes, this is a color planetary camera which is indeed convenient - I think perhaps customary for planetary imagers... I use an IR/UV cut filter but I am not sure it is needed. The micro lenses on these sensors are probably just fine. Cheers!

@@PeterRowe-k1o thank you for your kind words! I'm glad you enjoyed. Cheers!

Thank you kindly - glad you enjoyed it! It was a fun one. I will be working on a timelapse of Io transit. Hope to get that done in the next week. All the best!

I am not sure - let me see if I can figure that out... Thanks for pointing that out.

It seems that the language for the video was not set - which it should be by default. I corrected that and you should now have closed captioning available. Thanks again for pointing that out - I am an advocate for accessibility... Cheers!

More to come... Hope all is well, Larry!

Now is the time for Jupiter. I am getting the hang of the tooling and I like the small pixels of the 678. Thanks for sharing!

Awesome! Thank you! Enjoy that C11...

@@timpatton3948 - I know that uneasy feeling when it comes to tinkering with optical instruments! I am also a bit of a hoarder... Consider gifting the scope to a family member! Thanks for commenting!

Thanks for the comment - given the EDGE HD has a flat image circle published at 42mm - I your results should exceed what I have experienced. I'm very satisfied with the pairing, and I think the image scale at f10 in your rig is around .6 arc-s per pixel, which I think is fine. But, it is a full frame sensor and that means BIG data files. So it comes down to intended use. If your targets will benefit from the larger FOV, you are good to go! If your targets really don't need the FOV, then the 2600 is a great alternative with less data impact! Thanks again for the comment!

@@AstroDNAObservatory Thank you for this feedback. I am looking closely at the 2600 too. The 2600 duo seems like a sweet combination and would allow me to remove my guide camera and my OAG. The 2600 is 16bit ADC, whereas the 2400 is 14bit ADC. But the 2600 is a smaller sensor. So file sizes are likely similar.

Timely technique! Thanks for the comment!

Muchas gracias!

@AstroDNAObservatory a ustedes amigos y adelante con la bella astronomia

I tried with mixed results. It is a matter of target selection IMHO. If the target fits in the smaller FOV, and is bright enough for short uncooled exposure - yes, I have done it. Planetary Nebula, small Globular Clusters. I have had less success with fainter DSOs. But, I really have not experimented enough. Thanks for your comment!

@@sushantacharekar it is a keeper! Thank you kindly for the comments. I'll be rotating back to refractor telescopes after I work Jupiter this month. I'll probably use my SVX090T for some dark sky trips and I'll put the AT115EDT up in the dome. It's always nice to experience the contrast of a refractor after months with a long focal length SCT!

I'll do a video on Crescent. I did a combo of short broadband for the stars and longer with Askar D1 filter. I also process stars separately from nebulous region. There is a trick that I use... Thanks for the comment!

Excellent suggestion - thank you. I want to revisit this topic, I'm actually not happy with my flat frame for this target data. Cheers

My pleasure! I'm glad you enjoyed the video. The Stellarvue is a wonderful instrument with outstanding optics. I look forward to working it more with a full-frame sensor. Cheers!

THANK YOU! YOUR PRESENTATIONS ARE SIMPLY AWESOME! I WILL NOT COMMENCE MY ASTRO IMAGING PURSUITS WITH A DEDICATED AP CAMERA UNTIL AROUND MID 2026. I AM CONSIDERING A ZWO ASI2400MC PRO OR AN ASI2600 DUO. MIND BY THE TIME I AM READY TO PURCHASE THE EXPENSIVE DEVICE, THERE WILL NO DOUBT BE A NEW GENERATION AVAILABLE WITH EVEN MORE SPECTACULAR TECHNOLOGY. AS A NEW ASTRONOMY ENTHUSIAST WHO QUICKLY FELL IN LOVE WITH THE VISUAL ASPECT OF THIS FABULOUS HOBBIE, I AM IN NO DASH TO START SHOOTING WITH AN EXPENSIVE CAMERA. RATHER, I WILL TRY MY HAND AT IMAGING WITH MY BRAND NEW CANON 90D. THIS NEW PASSION IS FOR LIFE, SO I HAVE DIVED RIGHT IN AT THE DEEP END AND HEAVILY INVESTED IN A "SKY ROVER 130 REFERENCE REFRACTOR" FROM A RETAILER CALLED ASTRONOMY ALIVE HERE IN AUSTRALIA. IT HAS A FOCAL LENGTH OF 920MM AND CARRIES DECENT APERTURE AT 130MM. SADLY, IT HAS COST ME $6400 AUSTRALIAN BUCKS WHICH MEANS IT REQUIRES AN APTLY CAPABLE MOUNT TO ACCOMMODATE IT. DUE TO PORTABILITY AND FLEXIBILITY, I HAVE DECIDED THE SKYWATCHER WAVE 150i WILL BEST SUIT MY INTENTION TO ENJOY MY HOBBIE WHEN ON A TRIP IN ADDITION TO APPRECIATING MY VISUAL JOURNEY FROM HOME. IN JULY OF 2025, I WILL PURCHASE A BRAND NEW CELESTRON 9.25 EDGE HD TO COMPLIMENT MY REFRACTOR, SO I CAN ZOOM IN ON PLANETS WITH MY FAVOURITE BEING SATURN AND JUPITER. I AM EXCITED BEYOND BELIEF! AFTER QUICKLY BECOMING SUPER FRUSTRATED WITH MY FIRST TELESCOPE IN 2020 THE "STARSENSE CELESTRON DX130MM", I DECIDED TO BITE THE BULLET AND "PROPERLY INVEST" TO A CONSIDERABLE SUM AS TO AVOID ANY FUTURE DISAPPOINTMENT-I AM ABSOLUTELY DELIGHTED WITH SUCH A SENSIBLE DECISION BECAUSE I EXEPCT NOTHING SHORT OF DAZZLING VIEWS OF PLANETS IN FULL HD COLOUR THROUGH MY NEW HIGH-END SCOPES. IN THE FIRST HALF OF 2026, I WILL BUY A STELLARVUE SVX 90T WHICH WILL "COMPLETE" ALL OF MY ASTRO REQUIREMENTS FOR MY FUTURE JOURNEY THROUGH SPACE. TOURING THE NATURAL WONDERS OF LIFE IN DETAIL WITH HIGH CLARITY, WILL PROVE AN UNFORGETTABLE EXPERIENCE CREATING EXQUISITE MEMORIES THAT LAST FOREVER. WITHOUT A SHADOW OF DOUBT, ASTRONOMY HAS CHANGED ME AND PROVIDED AN UNIMAGINABLE IMPROVEMENT TO MY TIME HERE ON PLANET EARTH. I AM SUPER GRATEFUL AND THANK MY LUCKY STARS TO HAVE FOUND THIS ASTONISHING NEW INTEREST, EVEN IF IT MEANS MY BANK ACCOUNT WILL TAKE A HIT IN THE SHORT-TERM. I AM OVER THE MOON TO HAVE SUCH A FABULOUS KIT FOR A BEGINNER TO THIS EXTRAORDINARY WORLD OF DISCOVERY AND NEW HORIZONS . . . . I MIGHT BE 45 BUT I FEEL LIKE I AM IN MY PRIME SINCE I FOUND ASTRONOMY, OR PERHAPS IT FOUND ME! HA, HA, HA, HA, HA . . . . . MY EYEPIECES ARE; 1). EXPLORE SCIENTIFIC 6.5MM 52° 2). CELESTRON LUMINOS 7MM 3). CELESTRON LUMINOS 10MM 4). CELESTRON LUMINOS 15MM 5). CELESTRON LUMINOS 23MM 6). MASUYAMA-FULL SET 7). BAADER MORPHEUS-FULL SET 8). TELE VUE PANOPTIC 24MM 9). TELE VUE DELOS 10MM 10). TELE VUE ETHOS 13MM 11). TAKAHASHI 3.3 TOE 12). PENTAX XW 40MM 13). EXPLORE SCIENTIFIC 4.5MM 52° 14). SAXON CIELO 2.3MM THANK YOU DEAR FRIEND AND ENJOY THOSE DAZZLING VIEWS!

Thanks for the comment! I have not tried an artificial star, though I have seen videos of folks doing so. One of the tricky aspects of the SCT is the tendency of the mirror to shift and flop when slewing to your target. So, when I collimate, I try to do it after the slew. Cheers!

Thank you for the comment and I love the C11! I originally intended to use it strictly for planetary, but I am very pleased with the performance on DSOs. I'll be imaging Jupiter in November, I have a ton to learn about planetary - but I continue to grab other targets with my C11 during clear skies. All the best!

@@PaulHirschhorn Warwick, NY - about 65 miles NW of NYC. Cheers!

Hey - thanks for the question. Mono CMOS cameras can be binned - at least that is the case with all my ZWO pro cameras. I use NINA for my sequences and it is an option in the Equipment and in the Imaging screens. You can't bin Color CMOS at the hardware level due to Bayer matrix - you would not be combining pixel signals properly. Cheers!

Thanks for the comment!

Morning, Steve. I don't fabricate caps at this time. But I am familiar with your pain! I'll keep you posted if I do eventually create caps for these telescopes. Thanks so much for your support!