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Found 73 results

  1. As new condition ultra narrowband 1.25" Baader filter. 3.5nm bandpass for nice small stars. Bought and loved it, but planning on going from mono back to OSC so won't have a use for this narrow a bandpass. £150
  2. Selling my full narrowband set up for multiple reasons: I could do with the money and mono just isn't really doing it for me. £1000 Includes: Altair Astro 183m Tec Baader Narrowband filters (Ha, OIII, SII and Clear) ZWO Electronic Mini Filter Wheel All associated cables/plugs T2 extensions to reach 55mm back focus for use with reducers Boxes and cases There is a scratch on the T2-T2 adaptor for the filter wheel and a couple of the labels on the filter boxes have been torn. But otherwise the important parts work perfectly well. Collection or postage via DPD. Buyer to pay postage and PayPal fees. No offers currently accepted, and I would rather not split
  3. Hifolks, Here's my take on IC1396, let me know what you think. In total 7.5 hours exposure time using narrowband Ha, Sii, Oiii. Post processing in photoshop and lightroom. Thanks for watching, clear skies!
  4. THIS ITEM HAS NOW BEEN SOLD. This listing is for my personal narrowband filters (Kayron from Light Vortex Astronomy). They are the Astrodon Hydrogen-Alpha (HA), Oxygen-III (OIII) and Sulphur-II (SII) 3nm 1.25" narrowband set. These are considered the highest-end narrowband filters money can buy, able to produce images of exceptional quality and incredible sharpness, cutting through a vast amount of light pollution. The 3nm variants featured here are fantastic for pulling out fine nebulous structures clearly above background. For more information, please see Astrodon's website: https://astrodon.com/products/astrodon-narrowband-filters/ Please note that these three filters together currently retail at just over £1,710 from UK suppliers, €2,180 from European suppliers or $1,690 from US suppliers. Payment is preferred via bank transfer but PayPal is OK with an extra 2.9% to cover PayPal fees. I'll cover postage to you via tracked Courier. I welcome any questions you may have regarding this listing. Thank you for looking.
  5. alexbb

    Bubble

    The bubble nebula. Not much to add about the target itself as it is already popular enough. A combination of HOO shot with the ASI1600MMC + Astronomik narrowband filters through the 200mm newtonian tube removed from the dobson base and put on the EQ6-R. About 6h of exposure through the Oxygen filter and about 9h through the Hydrogen filter. Clicking on the pictures will redirect to the astrobin images where you can watch them in full resolution. Crop close-up And widefield Thanks for watching and clear skies to you too! Alex
  6. Hi everyone, The North America and Pelican nebulae are situated in the Cygnus constellation and are thought to be 1800 light years away. My favourite part of the image is "The Wall", which is the "Mexico" part of the North America nebula and is a source of intense star formation. The data for this image was collected all on one night and therefore could do with more integration, but I like the result. I've used my go-to "natural blend" narrowband (as originally suggested by Jon Rista on Cloudy Nights): R = 76%*Ha + 24%*SII G = OIII B = 85%*OIII + 15%*Ha I personally prefer this "natural blend" to the Hubble palette both in terms of look and ease of processing! 4 hours integration time, captured with WO Z73/ZWO ASI1600MM Pro/Astrodon Filters. Full details here. Thanks for looking!
  7. Finally completed my SHO version. There is some purple in the image I cannot figure out how to get rid of and I'm sick of playing with it. Hints and tips on how to get rid of it welcome, I'm using PixInsight. https://pbase.com/grahammeyer/image/169136922 Scroll to the bottom for size options and details. Thanks for looking!
  8. Hello Astro Peeps, I hope everyone is all good! Isn't there some amazing images on this site and others. Amateur imaging has never been so good! I myself have finally managed to get some data for an image, of which I am very happy. It has been so hot here it has been impossible to get any good data. One day a couple of months ago, I hung the thermometer from the grape vine under the back verandah and it was 47.5°C. Sounds far fetched, although true. I live in Adelaide, South Australia and we are 11km from the CBD and usually 1.5 degrees hotter than there! Anyway, I thought I'd try my hand at a Ha, OIII bi-colour image while waiting for my SII data to come in. There seems to be a halo issue with some of the filters for which I will need to do further testing so I apologise for their distracting nature. Details are with the image but basically 3hrsx15min subs for each channel. https://pbase.com/grahammeyer/image/169113477 You can scroll to the bottom to choose another size or auto to fit your screen. Happy photon collecting! ? Details for those that cannot see them. Telescope: William Optics FLT132 Guide Scope: QHY OAG Camera: QHY9 Mono @ -20c Filter Wheel: QHY 7 position Ultra Slim Filters: Baader 36mm unmounted L R G B HA OIII SII Guide Camera: QHY5L-II Mount: AZ-EQ6 Mount Control: EQASCOM Focusing: SharpSky Pro and Sequence Generator Pro 3 (automated) Bahtinov Mask: No (initial focus) Capture Software: Sequence Generator Pro 3 Guiding Software: PHD2 Calibration and Stacking Software: PixInsight Processing Software: PixInsight Number and Type of Data Frames: L= X min, R= x min, G= x min, B= x min Ha= 12x15min, SII= x , OIII= 12x15min. Binning: 1x1 Total Image Time: 6 hrs Location: Lockleys Observatory B, Tanunda, Sth Australia Light Box by Exfso
  9. Hi everyone! The Tadpole Nebula and the Flaming Star Nebula captured over three nights of the unexpected nice weather we had a couple of weeks ago. A number of firsts with this image: 1. My first mosaic - keeping it simple with two panes! 2. First time I left my imaging rig outside... (I used a telegizmo cover) and it was perfect, allowing me to get imaging very quickly on each night 3. First time using powerful scripting tools in my capture software, APT, to move to the second pane and starting imaging automatically...worked really well! APP was used for pre-processing and stitching the mosaic together, while Pixinsight was used for image processing. A total of 10.9 hours integration time. Full details on Astrobin Thanks for looking!
  10. Second image with QSI660. 10x200second subs in Ha, Oiii and Sii. Combined in Maxim with Hubble palette (ish0. the green seems a bit strong, but I suppose that reflects the high Ha levels being dominant.) Darks and Bias frames used for calibration. No flats.
  11. Having acquired an ASI 1600MM Pro earlier in the year, this is my first attempt at a wide field Ha/OIII bicolour, using a Borg 55FL scope. 15 x 240s Ha and 15 x 240s OIII, integrated and combined in APP and edited in Star Tools. I assigned Ha to the Red Channel and OIII to Blue and Green, but would be grateful for any tips on combining channels for bi-colour images. I also tried combining with the LRGB Tool in Star Tools, assigning Ha to Red and OIII to Green, allowing STar Tools to synthesise the missing data. The result was interesting, but did not produce the 'traditional' Red/Cyan colours of this target. Apologies, maybe someone can advise how I can insert the image into this post, rather than have it as an attachment please? Cheers Dave
  12. Taken last night a bi-colour image of NGC 1514 Planetary nebula. 18 x 6 mins in h-alpha, and the same in OIII. Camera was a mono atik 314....taken through the skywatcher MN190.
  13. Hello all, I just got the O3 and the S2 filters this weekend after 2 months of waiting. I bought initially an Optolong Ha and I thought to buy the O3 and S2 also from Optolong. They O3 and S2 are advertised as being 6.5nm which also contributed to go for them instead of the Baader's. Anyway, I acquired some 3 hours if I remember well with the Ha in 1min subs and now just above 2 hours with the O3 in 3min subs. Unfortunately, I can image to the south only up to ~130 degrees in AZ. So the good skies around 180 degrees where objects reach the max altitude are not reachable from home. I have to give it a try later in spring from outside. All taken with the ASI 1600 MMC, cooled to -15C, put on the Tair3s wide opened at F/4.5. 300mm focal length. https://drive.google.com/open?id=0ByhJ_xuQxcnjWUZUZTRyRXFYYzA Will post in the evening the Ha and the O3 components which were mixed HaOO. Clear skies, Alex
  14. Hi all Just thought I'd put this out there to try and get some opinions. From time to time I've been imaging in Ha with a 2" Baader 7nm. It's fine except that I still get lp gradients which is very annoying. I'm wondering whether doubling up would likely help? There are the Astrodon 3nm or 5nm but they are fiendishly expensive, especially in the larger size. Any thoughts/experiences? I'm quite happy with what I can get with the the 7nm - it's just the lp.... Cheers Louise
  15. It was only nautical dark in the nights here in Norway when i took these, but gave narrowband a try with my QHY5L-II-M anyway, and the results are not bad at all for such a camera i think. It's noisy, but i guess with this little data and a planetary/guide-cam i guess that's to be expected. With more time i think it will give decent results. Taken with the QHY5L-II-M cooled to around -5c and and Olympus OM 50mm F/1.8 lens at F/2.8 OIII 8.5nm: 10x 600s with gain at 20. Ha 7nm: 15x 600s with gain at 12 (i think). No darks, flats or bias.
  16. Hi there, I'm hoping to buy an OIII filter for astro-imaging and i've read a lot of halo related posts and am unsure which to go for. Are the Baader OIII now halo-free? it sounds like OIII are notorious in general for halos and i want to be reasonably sure before i hand any money over. My astronomik ha 1.25" shows bad haloes, but the clip version doesn't although that one is newer. Will the astronomik OIII clip be halo-free? I am unable to reach the budget necessary for Astrodon, so i'm thinking the next best will be either Baader or Astronomik, is this pretty accurate or am i missing a manufacturer? Many thanks for any assistance in advance!
  17. I'm back from holiday and my 130P-DS imaging scope is being under surgery for a secondary mirror replacement and cutting a bit the focuser. Since last night I had a few hours of clear sky, I put the camera on my SkyWatcher StarTravel 102 achromat. 102/500. It has a focuser upgrade and I used the OVL field flattener that I purchased for using it with my small 72ED. I placed the sensor ~55mm away from the flattener's thread and the image seems pretty flat. I always wondered if this fast achromat could be used for narrowband imaging and I did not find too many examples on this internet. I hope this will help more people trying to find out if it's worthy or not. I let the image speak for itself. 6x60s with the ASI1600 and an Optolong 7nm Ha filter. Clear skies! Alex
  18. Hello all, I'm starting a new thread for this since the hydrogen data is rather old and it has been reprocessed since I posted a while ago. Now I finished the acquisition of O[III] too. Or sort of, I planned more, but clear nights were so rare that I decided to process what I had. The image was done in "3 pass" data over the area. That means that I acquired 3 sets of images covering the same area and combined in the end. First 2 in hydrogen, the last in oxygen. First set consisted of 3 panels in portrait mode for the top area and then I wanted to extend them to the bottom so I shot another 2 panels in landscape mode. I knew that I could get a higher SNR so I shot 4 more panels in landscape mode. Each panel consists of 30-31 subs, each sub 300s. Then I started the acquisition of O[III] which needed light pollution and moonlight conditions than the Ha required. Top panels contain 30 subs, but the bottom ones, only 20-22. Each 300s. Luckily there's not much oxygen in that area so I could get away with less subs. I also took some 10s-30s frames for M42's core. For the framing, I created a quick mosaic of the same area. For the final alignment I shot an image somewhere close to the center of this area. I can't remember if the initial register was done in APP or Registar - for the first pass, but for the next ones it was done in Registar. I removed the gradient manually in each stack with APP and then I created the mosaics for each pass same with APP. The 2 Ha passes I then blended manually 50%-50%. For the processing, I tried to stretch both Ha and O[III] to the same levels and I combined them manually in some 60-40/70-30 ratio for a layer which I used as lum. The colours were Ha - reddish, O[III] - cyan-blue. I spent a lot of time trying to control the big stars, the O[III] filter has poor coatings and, together with the ASI1600s non AR coated sensor, I had much brighter reflections than with the Ha filter. And I tried to raise the oxygen levels selectively around the flame and NGC2023, but the flame is really dim in O[III]. Don't know what other details in the story I forgot, this project drained me a lot of energy. Camera was ASI1600MMC, cooled to -15C for the first pass and to -25C for the ones following. Gain 139. Canon 300 F4 L IS lens with a lot of aberrations towards the edges. AZ-EQ5 mount guided with a 200mm lens and an ASI120MM, with varying seeing. 1.5-2.5" RMS guiding error usually. APT for capture, PHD2 for guiding, Registar for each night initial alignment. DSS, APP, Registar, StarTools, GIMP for processing. I started shooting early in October and I wanted much more, but Orion already becomes less and less visible from where I image and hides beyond the house. Ah, yes, I image from a yellow-pink light polluted area. Thanks for reading, thanks for looking! Comments and suggestions are appreciated. Links to original image and acquisition details: https://drive.google.com/open?id=17tr8lqagQAJg8maojtHZPbM-f67gSBTv https://drive.google.com/open?id=12gjGEgeR7FxR1Tow0e64JczeeUIqKojK https://www.astrobin.com/330284/ Alex
  19. Finally managed to add some proper Ha to the previous version (which was a noisy mess of a thing!), so this is now: 7 x 600s and 14 x 900s (4 hrs 40 mins) of Ha 17 x 900s (4 hrs 15 mins) of OIII SII synthesized using a blend of 60% of Ha and 40% of OIII Nikon D5300a 2" Baader filters Skywatcher 80ED Skywatcher HEQ5 Pro 50 Bias and 30 Flats Guided with PHD2 and a finder-guider (QHY5) Captured with SGP Pre-processed in APP Post-processed in PS The extra Ha data has made a massive difference. So this one was much easier to process. Still not completely happy with the colours, I may tweak them a bit at a later date. But for now I think I'm pretty much done with this target, time to move on to a new one methinks! C&C welcome as always. Clear skies! https://flic.kr/p/GBb38M
  20. Hello all! I acquired yesterday the third hydrogen panel of this area. I might add 2 more below, in landscape. We shall see how the weather plays. 2.5h each panel in 300s subs at unity gain. And some 30s exposures for the core. Camera is ASI1600MMC on the Canon 300 F4 L lens, cooled to -15C. And first successful try with the Astro Pixel Processor, though, the stacks were made with DSS. I just purchased APP and I didn't restack them. I'm not sure if I should add more hydrogen data or move to oxygen and then LRGB. I still have time to decide until Feb-March. More details: http://www.astrobin.com/317154/ Comments welcomed. Clear skies, Alex
  21. 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
  22. GlassWalker

    Veil nebula

    From the album: Widefield DSO

    A first pass process of this. OIII as blue: Canon 600D, EF 135mm f/2L, Astronomik OIII filter, 21x 2m. Ha as red: modified 450D, EF 135mm f/2L, Astronomik Ha filter, 18x 2m. Green channel from above blended. I haven't tried mixing in the SII yet...
  23. From the album: Deep Sky Objects

    3 hours total integration on NGC6995, The Eastern Nebula. 20x180sec Ha and 40x180sec OIII. 25 flats, 25 darks.
  24. Here's my effort from 2 nights ago under an increasingly rare clear and moonless night 1hr each of HA:OIII;SII using a Skywatcher esprit ED80 and ATIK 460 camera.
  25. I present you an image of the Flaming star nebula and the Tadpoles. I have 2 versions. Ha only and HOO. I started with 4 panels mosaic shot with the 130PDS, each panel is ~2h exposures. Then I shot another 7.5h with the Canon 300 F4 L lens, but the result was awful, compared to the mosaic. So I added this only in a small amount and only on the darker areas of the image. For the O3 image I only used the Canon lens. The IS element inside gives me a lot of headaches, and I have coma in some corners, other corners are out of focus, etc. And it behaves differently each session. Not only the IS was not playing nice, but I also had focus shift due to temperature drop and I did not refocus. The camera used was the ZWO ASI1600MMC, cooled to -15C. 180s subs at 300gain with the 130PDS and 300s subs at 139 gain with the Canon lens. Mount: AZ-EQ5. The lens was wide opened and the newton was corrected with a SW coma corrector, hence the halos around the brighter stars. Guiding: OAG with 130PDS and side-guiding with a 200mm lens for the Canon lens shots. Software: APT and PHD for acquisition; DSS, APP, StarTools, Registar, GIMP for processing. When blending the O3 I had to abuse star reduction, star removal, heavy blurring, masks, layers, etc. for a decent result. Link to a better resolution and other details: http://www.astrobin.com/315278/D/ Thanks for watching, Alex
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