assouptro

Thanks for the reply “scope” is a Samyang 135 lens there is an adu setting percentage and I aimed for 35% which was around 22000adu, this was achieved by adjusting the image time and adjusting the brightness of the panel (I have a dimmer on it) tolerance is 10% by default Regarding Bias, I originally didn’t bother but I have since read that bias can reduce the cameras fixed pattern noise so I thought I’d try! Cheers

Hi again I have tried to do research on this and haven’t found much info other than I am possibly not getting above the noise threshold in mode 0 at gain 26? I am totally new to cmos and as usual with this hobby there is a learning curve As the camera is second hand, I’m more concerned there may be a problem with it? I’ve tried calibrating with dark flats and bias but the results are the same but without flats pictures look good? No flats: flats and dark flats: flats and bias : Any help would be greatly appreciated Cheers Bryan

Hi This was taken with a 6d and Samyang 135 It was taken using an Astrotrack at 2 min subs from a bottle 3-5 location The processing was done about 5 years ago and my processing has improved since then Cheers Bryan I found a re processed version of the image above probably 3 years ago… Same date, just handled differently! Nog saying it’s better, just different 😊

Hi Craig a Thanks for the reply The integration time for the flat was 1.19s and there was a corresponding dark flat It’s a Samyang 135mm lens at f2.8 The flat panel was barely on, almost so dim I couldn’t see it the flat darks are really smooth by comparison, no banding at all to my eye Cheers Bryan

Hi starfolk! I hope one of you with experience or brains can help me out? I am trying to find out the best way to produce a decent flat with my qhy268m My first light images were taken in mode 0 gain 26 offset 25 as that was the default with Nina and I haven’t done all the research on mode/gain/offset yet as it’s quite confusing with my Atik ccd’s I have a dimmable flat panel, set up a looping image and adjust the brightness until I’m around 26000 adu then tick the save box allowing 30 frames to be saved (couldn’t be easier!) Now I have Nina flat wizard, which is new to me too, telling me it’s too bright or too dark then finally settling but producing flats with horrible vertical banding What am I doing wrong? master flat of 30 frames Many thanks Bryan

Hi Starpeople! I’ve been imaging for years and managed the upgrade from dslr to ccd but now I’m using my new (to me anyway) qhy268m and I’m struggling with flats I used Nina flat wizard (for the first time) and the light panel I have used with ccd for a couple of years now but when I integrated my first light in app I was shocked by the flat masters that have ruined the stacked images what am I doing wrong? i I used the same temperature as the lights, same gain and offset but I’m baffled by the results I’d appreciate any help! many thanks in advance Bryan single frame Ha master ha flat results

Do you merge them in photoshop? like a 50/50 blend (or whatever percentage works for your data?) Great result btw! Cheers Bryan

Lovely first light Carole and a great advert for the ED72 You’ve framed it really well and I love the dark bok globule detail around the “eye” Thanks for sharing Bryan

Wow! How do you do that?? Amazing! Thanks for sharing Bryan

Wow! The detail is amazing! It looks like tortured souls are attempting escape from some ethereal cosmic dust! Simply brilliant! Thanks for sharing your methods too Olly Bryan

I really like this! Especially when I zoom in to look, it’s got depth! Thanks for sharing Bryan

Not laughing That must make your day to day life quite difficult at times Great image btw! 😊 Thanks for sharing, and “sharing” Bryan

Hi again Star people! I have been lucky enough to gather quite a bit of data over the last few months due to the unusually good weather at my location in the NW as it takes time to gather reliable data when imaging with a scope that has a native focal length of 3050 even with the 0.7 focal reducer taking that down to roughly 2135 on a mount that shouldn't cope with the imaging equipment loaded on it Having said that, here is yet another SHO image from my Meade LX200 OTA with Starizona 0.7 focal reducer/field flattener combined with my trusty Atik460 mounted on an Azeq6 mount. Around 15 hours of an object I haven't imaged before Sh2-112 which is about 5.600 light years from Earth in Cygnus, the Swan I don't see many images of this object, and I'm not sure why? Either I don't log on when they are posted or maybe it's just overlooked for more popular Nebula in the sky at this time of year? Anyway, enough of the waffle...... And the starless version.... Thanks for looking Bryan

Rodd! That is beautiful! What a stunning image sensitively processed Thank you for sharing Bryan

You should be happy with that! It knocks the socks off my first attempts! The Astrotrac is old tech these days but I still have mine and have had great fun with it! Thanks for sharing Bryan

Thank you It’s an old 12inch Meade lx200gps OTA not HD, or ACF or RC but combined with a Starizona LF 0.7 focal reducer/field flattener I wanted to try one of these field flatteners and waited for a couple of years for one to turn up second hand, when I finally decided to buy one, I had to wait for a a few months for them to come into stock Although expensive I’m glad I bought it, even if it’s just pushed me to try harder! Thanks for the comment Bryan

Wow!! Thank you! Very kind words indeed! I am genuinely thrilled to get a response like this! Greatly appreciated I’m glad you like it 😊 Bryan

Thank you Lazy! I chose the colour of the bottom one of the two and just blended it in photoshop I think Gorann gave me sound advice! Thanks for the comment Much appreciated 😊 Bryan

Very nice! I haven’t had a go at this area but know how difficult it can be to image galaxies whilst keeping the Stea under control and you have done a great job Thanks for sharing Bryan

Very nice! So many stars!! Thanks for sharing Bryan

simply stunning! Well done Adrian, we have had an unseasonably dry period and your dedication has paid off! Thanks for sharing Bryan

Hi again stargazing people! I normally change scopes in autumn after galaxy season but this year so far I have been really enjoying the long focal length of my 12" scope After spending so long on the bubble nebula https://stargazerslounge.com/topic/400626-ngc-7635-the-bubble-nebula-my-close-up-season-continues/ I decided to keep the scope on the mount and see what else I could capture at this time of year with the long slow focal length This is a quick one by comparison less than 8 hours in total lrgb on NGC891 30 million light years away! anyway, here is the result so far... Thanks for looking Bryan

I thought about this and was going to do it but last night I couldn't get them to align as they came from different stacks in APP and I was too tired to think but in the fresh light of day I realised I could just use star align in PIX!! Something like this? Thanks Gorann Bryan

Thanks Newbie I know what you mean, the second image started to resemble a painting to my eyes and I was trying to produce an image so I started again I have looked at Antlia filters and specifically the 4.5nm HD filters as they seem reasonably priced and claim to work down to 3 or 2.8 (which is my fastest scope) Thanks again Bryan

Thanks Alan I appreciate your kind words I was hoping to create something in between the two images keeping that 3d look but less “sharp” but I guess the second image (my first attempt) will remain the better image until I gather the energy and impetus to start again!! And thanks for the extra credit! I still really enjoy using the Meade scope! 😊 Thanks again Bryan