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Found 7 results

  1. I was very excited to process those photos of the NGC6188 region. After many hours of work I was not happy with the result and started from scratch, finally I got the result I was pleased with. Photo Details: Ha: 1.1 Hour RGB: 20 Min each channel Total Exposure: 2:10 Hours Telescope: ASA 12'' F3.6 Mount ASA DDM85 Camera: FLI 8300 Mono Location: Namibia Hope you like it too Thanks for watching Haim Huli To all my photos, follow me at my Flickr page: https://www.flickr.com/photos/101543943@N04/
  2. Back in 2013 i captured a nice image of this nebula that i was very pleased with. However, it strongly lacked red as my unmodded 550D filtered it all out. So here the other day, trough some fog, i managed to capture some Ha data with the help of the QHY5L-II-M and a Baader 7nm Ha filter with the explorer 200. Exposures were limited to only 60 sec as i was capturing unguided, and even then i had to throw away half my subs (i really need to have my mount chacked and serviced...). Captured using Firecapture, with gain set at 1000, and peltier cooled the camera to about -20c. RGB data from 2013: 1 hour 45 min @ ISO800. Ha data from this week: 47x 60 sec. Gain 1000. I think the Ha data helped a lot to bring out more red color and details. What do you guys think? Original RGB from 2013: Ha data from the QHY5L-II-M: New HaRGB:
  3. RikM

    Bubble HaRGB P1

    From the album: Deep sky

    The Bubble nebula and my first HaRGB image. SW 150P on NEQ6 SXV-H9 with Baader RGB and 7nm Ha filters + SW LPR filter for all channels. Ha 10x 600s R 5x 300s G 5x 300s B 4x 300s Ha at 1x1, colours at 2x2. RGB combined in Maxim at 1.32:1.30:1.00 Ha added to red in blend mode lighten, then added as luminance at 60%.
  4. Took this Tarantula Nebula photo during my trip to Namibia. Photo Details: Ha - 60Min RGB - 15Min Each channel Total Exposure: 1:45 Hours. Telescope: ASA 12'' F3.6 Astrograph Mount: ASA DDM85 Camera: FLI 8300 Mono Hope you enjoy it Haim Huli
  5. Hi guys So we had a completely clear night last Thursday and, as luck would have it, i was actually off work all week, so i was able to take full advantage. Well, mostly, as you'll soon find out. As it turned out this was a night that almost went completely awry. The first thing that i messed up was i forgot the external battery that keeps the D5300 powered all night. I only noticed this after driving the 45 min trip back to the family home where i do my imaging. Doh! Luckily though, i dipped into my big bag of astro stuff and found the 2 old camera batteries and charger that i used to use. By my reckoning it was last December when i last used them, so i was amazed to find they still had quite a bit of charge in them! So i was able to charge one while i used the other. Unfortunately though it meant i had to keep going out to the scope every 2-3 hrs to change battery, but tbh i was just relieved that i didn't have to drive home and lose another 90 mins of dark sky time. The next thing to grumble was the guider. For some bizarre reason, i could not see Polaris in the Fov in Sharpcap. I could barely see anything at all tbh so even though Sharpcap told me it was able to platesolve i was very dubious. And then when i came to do the Sharpcap PA routine, the adjustments were jumping around all over the place. It took me about 25 mins to PA instead of the usual 5, and i really thought the guiding was going to be a nightmare, but what do you know, it turned out to be actually really good. It even dipped below 0.5" at times. Go figure! Due to the floodlights of the sports facility (which is rather conveniently only about 100 yards away from the house) i was forced to start with Ha subs, then once they were turned off at 10pm, i switched to Oiii, as i knew the moon was coming up around 00:30 so i needed to take advantage of the darkest part of the night. I figured i'd go for about 3 hrs of Oiii, knowing that with the final filter change back to Ha again, i should end up with about 4-5 hrs of Ha in total. Well, after doing the last filter change and going back in to grab a nap for a couple of hrs, when i woke up and checked Team Viewer i noticed that the sequence had unexpectedly ended. Went out and saw that the 7 Ahr LifePo4 battery i use for the mount had died. I also noticed that the lens of the Finder-Guider had completely dewed up. As it turned out, the dew strip for it had failed so i've had to order a new one. I've also ordered a PSU to power the HEQ5-Pro from the mains, so fingers crossed i shouldn't have to worry about mount power over the winter now. All in all this was a bit of a pain of a night, as i normally only shoot 1 filter per night. Sometimes in the longer winter nights i might do 2, but i've never done 3 before. It's a real hassle too, as i need to shoot flats, change filter, re-frame and re-focus. All of which can take upwards of 30 mins. Hmmphh. So long story short i didn't end up with as much Ha as i wanted for this, which has meant it's been trickier to process than i would have liked. I should probably have just waited and done another night of Ha, but with all the hassle i have to go through to get any imaging done these days (drive, setup, tear down and pack away, drive home, sleep deprivation) i will always just try and use what i've got and move on to the next target. The Mean ADU level was quite low on this one, probably because the target is quite small and only occupies the centre of the frame. I've probably been lucky up to now, by mostly shooting larger targets, so i was disappointed with the low ADU levels, which are scraping the bottom of the barrel for me in terms of getting away from the noise floor. So i upped my exposures a bit, pushing as high as 25 mins, which is the nighest i've ever gone with the HEQ5-Pro. It seemed to still handle it quite well, although it didn't improve the Mean ADU level anywhere near enough. Full capture details: 3 x 1200s, 2 x 1380s, and 4 x 1500s of Ha 9 x 1200s of Oiii. 11 x 480s of RGB (with an IDAS-D1). Used for the stars and sky background only. 7 Hrs 54 Mins in Total. All shot with a Nikon D5300, SW 80ED, and an HEQ5-Pro. The RGB data was shot over a year ago from inner city Belfast (Red Zone) while i was testing out the new Rowan belt mod. It was just a test shot to check the guiding, so the 8 min subs were far, far too long in reality, hence a lot of the medium and bright stars are clipped. But i have to say, the IDAS-D1 together with APP did a nice job of cleaning it right up and making it at least useable (well, by my standards at least!). So on to processing. I've been playing with this for several nights now, and i just can't look at it anymore! i think this is the best i can manage with the limited data i have. It's been enjoyable and yet frustrating at the same time, lol. As usual, this has been stacked in APP and processed in PS. I used the tone-mapping method of processing, and created a synthesised Sii from a 50/50 blend of the Ha and Oiii. I then combined them in the classic Hubble Palette SHO. Obviously, not having any real Sii means i can never get the full range of tonal variations throughout. I'm also not completely happy with the colours if i'm being honest (especially the blue). That was the part i struggled with the most on this one. I've also attached below a quick and dirty HaRGB version, which took me all of about 30 mins to process (in total contrast to the SHO version, which i won't say how long it took!). As always, constructive criticism welcomed with open arms! Ok time for me to stop rambling on now ? Edit - Forgot to say, I resized the sSHO version down to 75% of the original (it's not worthy of 100% viewing).
  6. I keep "upgrading" my older pics and it actually turns out better then i thought it would... I first captured Orion RGB on the 7.3.2014 with the moon really close by (18x150sec@ISO200). Later that year i added the running man with RGB data from 26.12.2014 (11x120sec@ISO800), and the pic instantly looked "more complete". Then here a couple of weeks ago i was able to gather 20 min of Ha data (10x120sec@ISO3200]. Not nearly enough with my unmodded 550D, but helped a bit still. It's my first attempt in HaRGB, so i'm quite pleased with. Edit: First is HaRGB, 2nd is the old RGB.
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