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Showing results for tags 'widefield'.
Found 57 results
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Second attempt at astrophotography with my canon 1300D untracked (first was orion ). Shot under dark skies of himachal pradesh (India). Stacking done in DSS and processing in Gimp. Any suggestions would be appreciated. especially regarding the trees at the bottom. Total exposure time - 20*20 seconds Shot with - Canon EOS 1300D (untracked) (unmodded) Flats and Biased frames included
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From the album: astrobiscuit pics
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From the album: astrobiscuit pics
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From the album: astrobiscuit pics
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From the album: astrobiscuit pics
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From the album: astrobiscuit pics
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From the album: astrobiscuit pics
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From the album: Widefield
© Graeme Healey Photography
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From the album: Widefield
© Graeme Healey Photography
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From the album: Widefield
© Graeme Healey Photography
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From the album: Widefield
© Graeme Healey Photography
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Following on from my other mini-observatory threads, I'm now thinking of a small dome observatory for my widefield imaging rig. Several previous ideas for a mini observatory have bitten the dust! I have a number of thin aluminium sheets the I bought for my earlier cylindrical roof mini obsy that can be bent into the sections of a multi-sided dome. Why a dome? Well, it is more compact, requires less power to drive - this observatory and contents will be fully automated - and a dome provides more protection from wind etc. No space is required inside for a person in this case - just a Raspberry Pi 3 for controlling everything with INDI drivers. Not even a laptop.
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The Veil Nebula is a diffuse nebula located in the northern constellation Cygnus, the Swan. Also known as Witch’s Broom Nebula, Bridal Veil Nebula, Cirrus Nebula, or Filamentary Nebula, it constitutes the visible parts of the Cygnus Loop, a supernova remnant in Cygnus. It is located at an approximate distance of 1,470 light years from Earth. In this wide shot you can see the three main parts: the Eastern Veil, the Western Veil, and Fleming’s Triangle (Pickering’s Triangle). Full resolution: http://www.celestialpixels.com/Nebulae/i-zcwHVLh/A Telescope: Telescope: TAK FSQ85 Camera: QSI 683 Filters: RGB + Ha + O3 Total Exposure: 12h Location: Mt Parnon @ 1430m. Greece
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Here is my intended setup for widefield but for now until I get the hang of it, I will just use the mount and camera. This setup includes Canon 1100D with RDF mounted to the hotshoe, 9x50 finder modified to a guidescope, QHY5L-II as the guide camera run from a Packard Bell netbook. Lenses are Vivitar Series 1 200mm f3, Panagor 135mm f2.8, F.Zuiko MC 50mm 1.8 and a Tokina 11-16mm 2.8 ultra wide lens. The whole purpose of this setup is portability due to living in a flat and I find my CG5-GT to bulky to cart around. Excuse the poor quality pics as they were taken on my phone.
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- star adventurer
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Here's a couple of quick hand held shots from yesterday (30/6/15) of the conjunction. Not sure why I was too lazy to get the tripod out and do a proper job... anyhow here they are (might need to zoom in a bit on the wide shot to actual see the planets!). Both taken with a Canon EOS700D with a 50mm EF lens. The upload compression does take a bit away from them. Too much wispy cloud to get anything tonight... Cheers, Rob -
Hello all, I think I'm done with this target this season at least. I acquired 2x6h of Ha data with a Canon 300 F4 L lens (~300mm FL F/4), maybe 2x4-5h of O3 data with the a Tair 3s (300mm FL F/4.5), another 2-3h of Ha with a Pentacon 200 (200mm FL F/4), 3h of O3 with the Pentacon, 4h of S2 with the Pentacon and 3x25m (3 panels) for each RGB with the Tair. All narrowband subs were 300s long and the RGB were 60s long if I remember well. All at unity gain, cooled between -10C and -15C. Shot from the balcony under white light pollution. I made a narrowband combination with the Ha and just a bit from the others used as lum and 40S-60Ha as red, O3 as green and 30Ha-70O3 as blue. Combined in StarTools and GIMP. Software used: APT, PHD, DSS, StarTools, GIMP, Registar. The RGB and narrowband images don't cover the same area perfectly so some stars in the left side are a little more bloated as I couldn't control them. Links for better resolution: https://drive.google.com/open?id=0ByhJ_xuQxcnjejEwN3pCeWR6Znc https://drive.google.com/open?id=0ByhJ_xuQxcnjaFlFSDMzSkYzd28 Should I make the them brighter? Any opinions are welcomed. Thanks for watching, clear skies! Alex
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Heart & Soul, Double Cluster in Widefield (85mm)
coatesg posted a topic in Imaging - Widefield, Special Events and Comets
I took these images on Sat 25th Nov from here in W Oxfordshire. I've got the widefield setup running now using a RPi3 running KStars and Ekos. This controls a modded, uncooled 350d (with Baader filter) and a serial shutter cable, an Arduino motor focuser (as a Moonlite compatible focuser) and the Losmandy GM8 it all sits on. Images were taken through a Canon 85mm f1.8 EF lens at f4.5, exposures were 45 x 300sec (3h45m total) at ISO400 through an IDAS P2 filter. The field is a whisker over 15x10 degrees. Processing was in PixInsight and a bit of work in Photoshop to reduce a bit of amp glow that didn't calibrate out fully. Fairly pleased with this (though the Heart and Soul have come out maybe a little red - the colour calibration uses PI's PCC tool, and the IDAS filter might throw it a bit), but there's some other areas of interest coming through in the image. Annotated image attached but there are a few other bits that PI doesn't grab - there's a small area of reflection nebula (LBN 142.14+01.97) to the left of Sh2-202 that's just coming through. Also, unlabelled are Stock 2 (between the Heart and the Double Cluster) and for the interested clouded out astronomer, galaxies Maffei 1 and 2 are visible in frame just below the Heart (labelled as Sh2-191 and Sh2-197). Thanks for taking a look! -
Widefield in Taurus and Perseus
Calypsob posted a topic in Imaging - Widefield, Special Events and Comets
I forgot to share this one last month. Between travel for business and brutally cold weather closing down my nearby imaging location in the mountains I have not had time to image this year. This was taken at the beginning of December and contains a very busy wide field splitting the constellations Taurus and Perseus. The better known DSO's are M45 the Pleiades reflection nebula and NGC 1499 the California emission nebula. The center of the image contains a dark nebula which I am not familiar with and the rest of the region is quite heavily laden in ISM interstellar medium dust. This image was taken with my unmodded T3i Information about this image camera: unmodded T3i ISO:1600 Exposures: 102 x 100s Darks: 5 ugh, mishap Bias:450 frame master Flats:35 Lens:SMC Pentax M* 50mm F1.7 stopped to F4 SQM: 21.1 Seeing: 3/5 Transparency:3/5 Calibrated and partially processed in Pixinsight and finished off in Photoshop CC 2017. M45 and California by Wes Schwarz, on Flickr -
From the album: Widefield Shots
Konica Minolta Dynax 5D and a Tamron 17-50, f/2.8 lens 15 sec exposure, continuous mode with shutter locked.© Stellan Johansson
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Taken on 27-05-2017 It could be called work in progress, but not sure if I'll be finishing it, still don't have RGB filters, and I'll probably not going to get them in time to complete the image this year (maybe next year, but really, in my opinion this target deserves up close and personal focal length). I was actually waiting for some bits and pieces to give this camera proper first light on RC8" (I did try it out in this combination, kind of, but due to technical difficulties no subs were recorded in previous session), but could not resist clear night on a weekend, so I paired it to TS 80 Apo to try it out. I'm actually really amazed with the result. There are couple of issues, like a bit of astigmatism in the corners (probably due to not getting distance between camera and FF quite right). Also there are reflections around stars (not processing artifact, this is probably due to filter placement). Data: 120 x 1m Lights (2 hour total), x256 Flat / Dark Flat, x64 Dark, taken at -20C, Gain 139, offset 25 Equipment: TS80 F/6 Apo, TS FF x0.79, ASI1600mmc, Hutech IDAS LPS P1, TS60 F/4 guide scope + ASI185 + ZWO IR pass filter (guided in IR only), HEQ5 belt mod + tuned. Software: SGP for capture, ImageJ for calibration, align and stack, Gimp 2.9 for curves Conditions: LP red zone, good transparency, average seeing Image is presented in full resolution / no binning or crop I did not do any noise reduction, but there might be some slight softening due to using .jpeg. Also no sigma clip for this version (hence satellite trails, it was a busy night ), I'm yet to figure out how to do it with such a large amount of data in ImageJ (calibrated set is 7.4GB, and I only have 8GB of ram, so need to figure out how to split it to do it in chunks). I think this camera is awesome, I honestly did not expect this number of background galaxies to pop out in just 2h with 80mm scope (certainly not from red zone). As always, comments and critique are welcome. Thanks for looking.
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Venus and Mercury Conjunction 10.01.15
astrodam posted a topic in Imaging - Widefield, Special Events and Comets
Hi all, before going comet hunting tonight I went and found a nice vantage point to observe tonights conjunction of Venus and Mercury. I believe I read they were around 1degree separated. They look great hanging low in the dusk sky and Mars was also visible higher up and more southerly. I took quite a few images but this 4sec ISO100 shot was my favourite. IMG_5654.cr2.tif https://www.flickr.com/photos/116958085@N07/16246201211/ -
4 pane mosaic of NGC 7000 and Pelican.
wavydavy posted a topic in Imaging - Widefield, Special Events and Comets
Heres my version of NGC 7000 and the Pelican nebula, taken back in 2015, through my William optics zenithstar 70ED with focal reducer. To fit it all in I did a 4 pane mosaic. Think the subs where 15 x 6 mins for each pane..........hope you like. -
Venus sets next to milky way
T-WING posted a topic in Imaging - Widefield, Special Events and Comets
Happy new year folks! Long time since my last post. Lately I've been shooting some widefield. Here's my latest shots. Milky way mostly.. Venus sets. Sony A7s + Samyang 14mm ISO 10000 15 secs @f2.8 Old pilot station (is that correct english btw?) Samsung NX1 + Samyang 12mm ISO 320 10minutes (iOptron skytracker) Have a good one! -Thomas- 11 replies
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I'm still undecided which mod to go for. I will only be using the camera with camera lenses and will not be using it for normal as I have another camera for this. Is it worth getting a full spectrum mod if I only intend to do widefield?
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From the album: Astro snaps
Canon 400D, 15s exposure, Gaussian blur in Gimpshop to subtract light pollution. You can just about see the Andromeda Galaxy on here.
