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Found 254 results

  1. Hi.. When I attach the t adapter with barlow to telescope I get a black screen in my nikon d3200 live view . .how to capture image? and how to attach eyepiece and camera?
  2. Hi guys, Tonight i am piggy backing my DSLR/Lens combo on top of the frac for the first time, i've just been out and balanced everything. I can see that the biggest problem i am going to have is lack of control over the 2nd DSLR. Usually i use APT via remote desktop to control my DSLR from in my living room. But as far as i know APT doesnt offer dual camera control. I've done a few searches and nothing at all is popping up about a way to do this and i should add that i only have the one imaging laptop so cant use a separate laptop for control. Anybody have any experience with this?
  3. Hello everyone! I have recently been thinking about the possibility of having my camera modified for astrophotography, but know very little about the subject, and have a good few questions: How much would I gain from this process? As far as I know, the effects of removing IR-Block filters, considerably improves the imaging of H-Alpha objects, but by how much? Roughly how much would this process cost me? How unusable would the camera then become for terrestrial photography? From what I know, it is bad, but editing can improve the situation. If I decided to get my camera modded, where would be a good place to get it done?I don't know much about it, but from what I have heard, it can very a very useful process. Thanks for your help David
  4. Hi everyone, I'm looking to buy an 8" newt for astrophotography with my Canon 6D full frame. I'm really only going to be using it for imaging so visual problems (such as back focus) aren't too much of a concern for me. I'm aware that probably whatever scope I get won't cover a full frame sensor without vignetting, but does anyone have an opinion on which would be the best? I have a CGEM mount and Baader MPCC mkIII. The ones I've been looking at right now are: 1.Orion 8" f/3.9 Newtonian Astrograph 2.Astro-Tech f/4 Imaging Newtonian I've also heard of the Sky-Watcher Quattro series and Meade LX70 series, I just haven't heard as much about either of those. Also, optics are my #1 concern. Things like weight or minor mechanical shortcomings that I could potentially fix are not as great factors. Thanks for your input! Patrick
  5. I know it's not an ideal scope for astrophotography and I'm not expecting anything special since I know about EQ mounts etc. If it could get up to 30 second exposures I'd be happy.
  6. Hello Can I ask what is the current wisdom to connect a Dslr to a Newtonian. I have a skywatcher 150pds. Is the right way to try and achieve prime focus? Or is it advisable to use a Barlow? And if this is the case does it need to be a good one if it's for imaging? Obviously this will be used in conjunction with a coma corrector Baader. I have no idea what gives the best results in Astrophotography and as I haven't bought them yet I would like to hear your ideas. I notice for example there is a standard celestron Barlow but also ED types and others. My camera is a Canon 550d. Thanks.
  7. I've been following a few threads around the web re difficulties achieving the 105mm spacing with off axis guider fitted. I've found a simple elegant way of managing it so thought I'd share . Using a Baader SCT clickloc , ovl oag and a revelation M48 2" 20mm extender gives almost exactly 50mm to DSLR t ring ... Costly but not if you're already using a Clickloc The M48 2" eyepiece fitment that comes with the ovl oag has a step of about 1.0 mm which is where the revelation extender comes in. This arrangement gives 50mm (possibly 50.2 allowing for dodgy tape measure) from front of reducer to DSLR fitting . Hope this helps if anyone is struggling.
  8. Hi guys, Scoured Amazon and other book shop reviews for the best book on DSLR imaging and am looking for your opinions. I'm not interested in CCD imaging but understand most books will have sections on this but want to hear from people who have actually used them and are not reviewing the delivery times! Any recommendations would be gratefully received. Clear skies
  9. Thought it might be interesting to show a comparison of images taken with a DLSR and a webcam. Especially since they were taken on the same night, through the same telescope, right after each other. DSLR image: Skywatcher 80ED + FF/FR, Canon 1000D, 1/250, F6.35, ISO100. 100 frames. Processed in PIPP & Registax 6. Webcam: Skywatcher 80ED + FF/FR, Philips SPC900NC. Composite mosaic of 7 panels, each panel 180 frames. Processed in Registax 6 & Microsoft ICE. Hope you like them and all comments welcome.
  10. I had a quick go at the Witch's Broom on Sunday (10/11/13). Seeing wasn't too great, and I was battling the moon which was within 45 degrees of the target at a guess. This is an unmodded DSLR version, hence the relative lack of Red/Ha in the nebula. I've pushed it as far as I think I can without turning the whole background and fainter stars completely red. AstroBin version: http://www.astrobin.com/64051/0/ Capture Details Frames: 5x1800" ISO400Imaging scopes: Sky-Watcher Evostar 80ED DS-ProFocal reducer: Sky-Watcher 0.85xFilter: Hutech IDAS LPS P2 2"Imaging camera: Canon EOS 500D UnmodifiedMount: Sky-Watcher NEQ6Guiding scope: Orion ST80Guiding camera: QHY 5Capture Software: APT, PHD guiding, AstroTortilla, EQModMoon: Half Full, within 45 degreesProcessing: PixInsight 1.8 RC7Darks: 109Flats: 64Bias: 330
  11. Hi all, After beeing a bit away from the forum due to technical problems here goes some new images made with my TEC cooled Canon 350D (self modded). The most recent image is the Iris nebula, in this night I had some dewing problems in the sensor with moisture forming betwen the CMOS sensor itself and Baader filter, even with the heating system that I made connected the dew didn't go away...so another brainstorming arose...and I made an insulated box from a Tupperware and put the camera inside together with a big dissecant bag, first tests are promissing, hi haven't had a single issue so far, let's see during the soaking winter nights Well...enough speech, here goes the images: Best wishes,
  12. Although I'm more interested in visual astronomy, I still think it's fun to try some basic astrophotography every now and then. However, I don't think I have the time or patience to get into "proper" prime focus DSO stuff (ordered Making Every Photon Count out of curiosity anyway, you never know, right!?). At least for the time being. But I do want to get started with some widefield work this year, both still images and time lapse videos. I'm currently investigating the various options when it comes to tracking platforms such as iOptron SkyTracker/Skyguider, AstroTrac, Vixen Polarie and so on. Still not sure which way to go with that just yet. Anyway, I've started to put together some other various bits and pieces to get going. Just recently got an adapter to mount an RDF on the camera using the hotshoe to better be able to aim it where I need and want: http://www.teleskop-express.de/shop/product_info.php/info/p5641_Lacerta-adapter-for-mounting-red-dot-finders-to-camera-flash-shoes.html Also have an intervalometer that I bought last year, but havn't used much so far: http://www.teleskop-express.de/shop/product_info.php/info/p1464_Programmable-SLR-Remote-Control-for-Sony--Minolta.html I will, when the weather improves, try some basic shots with the camera on a fixed tripod (Manfrotto 190 PROB) just for fun. I've see some very interesting results here on SGL lately.
  13. Just thought i'll bring this up as a point of discussion. Today, cooled CMOS Astro Cameras are available in plenty. QHY, ZWO and other variants of the same camera are selling for very reasonable prices. However, there was a point of time when astrophotographers used to cool down their DSLR's as a cheap OSC alternative to CCD cameras. Give a choice, I would've purchased a dedicated CMOS OSC which can cool to 40 C below ambient, but since I had a Canon 500D which I had self modded, I requested a friend Kaustav Chatterjee (an avid model railroader) to cold mod my 500D (he had cold modded his 1000D long back). This newly modded camera has a TEC12703 single peltier and cools to approximately 20 below ambient.What do you guys think?
  14. From the album: Astro snaps

    Canon 400D, 15s exposure, Gaussian blur in Gimpshop to remove light pollution
  15. badgers

    M97 - The Owl Nebula

    From the album: Badgers - Astrophotos

    First test of the HEQ5 Pro with the Canon 40D DSLR and guided by a logitech quick cam pro 4000.

    © Anton Enright 2012

  16. From the album: Badgers - Astrophotos

    Canon 40D DSLR

    © Anton Enright 2012

  17. badgers

    M1 - The Crab Nebula

    From the album: Badgers - Astrophotos

    Canon 40D DSLR

    © Anton Enright 2012

  18. From the album: Stevebb.com

    M42 Orion and NGC1977 Running man nebulas taken using a Skywatcher Equinox ED120 on an NEQ6 Pro mount and imaged using Backyard EOS and a modified Canon 450D DSLR. Thanks to Chris E and Warren N in Lincoln for inviting me down for the weekend (clear skies). This is a picture I have always wanted to capture since I was a kid.

    © steve@stevebb.com

  19. i am looking for a coma corrector for astrophotography, i have a skywatcher 254/1200 pds, a nikon d5100, and a skywatcher off axis guider, what would you recommend?
  20. Had a quick search but not found much info, I've just 'transitioned' from DSLR to a CMOS (AA 183C pro) Used to capture with APT or Backyard Nikon, save as RAW, DSS to stack and use autosave.tif to work on in Photoshop. Whats the general consensus on CMOS ? So far trying APT or Sharpcap, saving as FITS, stacking in DSS still and using autosave.tif into Photoshop. I keep seeing fits liberator mentioned ? Opinions gratefully received.
  21. Hello good people! After using EQ2 mounts and imaging planets for almost a year, I think it's about time for me to start imaging DSO's! I think I can just about afford to get the skywatcher 150p on EQ3-2 mount. Will the mount be ok with a dslr or should I wait a while and get the 200p EQ5? The HEQ5 mount is just too expensive for me, unfortunately. I would just like to know if the EQ3-2 or EQ5 is capable of imaging DSO's Thanks!
  22. Hi all! I've read some stuff about enhancing Ha emissions using DSLR, withtout Ha filters, by using R channel as luminance and combine it with the RGB... But i didn't quite get it all. Do u mean that after a normal session you can pick the R channel from the TIFF stacked image and re-combine it again with the RGB final pic in order to enhance the Ha emissions? or do you take subs with only Red channel (if that is possible with a DSLR)? Can you do this in Photoshop or you need a different software, like PixInsight? (i've seen it somewhere on a topic) Whats the best way to gather more Ha info with a DSLR? Thanks in advance Cheers, Rui
  23. Just thought I would share my first DSO images I took of the Orion Nebula. Not great but better than I expected them to turn out given I had never taken this kind of picture before, and it was completely in the moment without any prep. I took these on my Canon 60D with a Canon 18-200mm lens. F3.5 apeture, 1.5 second exposure. The first image was at 1600 ISO, the second at 3200. The first image has a bit more fine detail, at the cost of losing how big the nebula is and some of the color. The second has a lot more color and shows more of the nebula, but a lot of the detail is lost in the brighter area in the center. Once the weather is nicer I definitely want to have another go at it properly, and take multiple exposures and dark frames to stack them properly.
  24. Hello, what do you think is better for astrophotography?- DSLR with newtonian f5 (150/750) or clasical dslr telelens (100-300mm cca)? Asking about DSO imageing-not planets...
  25. Hi guys I've been staring at these for long enough now that i'm effectively going blind to them, so i think it's time to post them and see what you guys think as well. It's late, so i'll keep this brief! 10 x 1200s Ha (2" Baader) 9 x 1200s OIII (2" Baader) So not much exposure at all really, but it's all i'm going to get for a while. The Ha was shot low on the horizon, and with a big bright moon up, but at least i managed to get the OIII the following night (mostly) before the moon made it's re-appearance. The usual Bias, Flats, and aggressive dithering. Stacked in APP, and processed in PS. For the Bi-Colour version i used one of Carboni's actions to synthesize the green channel (with Ha in Red and OIII in Blue). For the SHO version, i used 80% of Ha and 20% of OIII to synthesize an SII, then used tonemapping to bring out the colours. Normally i prefer the hubble palette, but i'm not sure about this one. I think i prefer the Bi-Colour one. Dunno. Let's see what i think in the morning! C&C welcome, and thanks for looking :-)
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