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wolfgang.f

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Everything posted by wolfgang.f

  1. Amazing - I wasn't aware that you could image Jupiter and its moons just with a telephoto lens. Here's an idea for the next clear night... (if there is still such a thing ) CS W.
  2. Spot on The camera has a basic filter modification.
  3. After two nights of meteor hunting, I captured one lonely Perseid, at least. I'm not quite sure what the reddish streak across the picture is, though - a satellite perhaps? EOS 500Da, Tamron 2,8/ 17-50, 2 min exposure, Astrotrac mount. Perseid by wolfgang.f on Flickr
  4. Got a glimpse of Venus low above the horizon yesterday... Image taken with a Celestron C 9.25 + IS DFK21. Wolfgang
  5. The night sky over a quiet lake in the forest, with Orion just setting above the trees... wolfgang.f on Flickr Canon EOS 550D, Tokina 4,0 / 12-24mm, 20 sec @ 3200 ISO. Thanks for looking, W.
  6. Beautiful. I like the effect on the water. W.
  7. Yes, two stops, mainly in order to reduce chromatic aberrations (some nasty purplish fringes at f/4....). W.
  8. You can even seen the earthshine on the moon. Beautiful! W.
  9. Had a play with a vintage 1980s Olympus OM Zuiko 4,0/200mm I picked up on Ebay. Just 7 x 2min subs at 1600 ISO before the clouds came, so it's a bit noisy... the reflection nebulae are there, though :-) Messier 45 by wolfgang.f on Flickr
  10. Fantastic capture, really deserves to stay on top of the page :-) W.
  11. Great picture with lots of detail! It's fascinating to see the nebulae in the region so clearly. W.
  12. Fantastic picture! I love the composition with the Milky Way spanning across the night sky and the reflections in the water. Just perfect :-) Wolfgang
  13. Just follow the link in my post and go to the download section or click >>here<< :-) For installation: - Upgrade camera firmware to Canon's current version - Format card in camera - From your computer, unzip Magic Lantern files to your card - from the camera menu, go to firmware / upgrade. This will install Magic Lantern from the card. Here is a detailed step-by-step instruction: Unified/Install - Magic Lantern Firmware Wiki. Good luck :-) W.
  14. I'd like to point out one option which doesn't even need a notebook: Magic Lantern. It works with most Canon DSLRs. It's a firmware extension with loads of additional functions, some of which are very useful for astrophotography. To take a series of subs, this is what you do: - Set camera to manual mode, bulb - in Magic Lantern, set "bulb exposure time" (in increments of 1 minute) - in Magic Lantern, activate "intervalometer" (increments of 1 minute) Your camera will then snap away happily until you stop it. I've tried it on a 550D, and I'm rather pleased with the results so far. Here's a startrail picture made with Magic Lantern: http://stargazerslounge.com/imaging-widefield-special-events-comets/171346-startrails-around-celestial-pole.html Wolfgang
  15. Moonrise over a small stream on a crisp cold winter night... W.
  16. Wow... the amount of detail is stunning. Thanks for sharing! W.
  17. Finally talked my QHY5 (Alccd5) into working with a Win 7/64 bit netbook... Here's a picture of the Mare Humorum region with Gassendi. One thing I'm rather pleased with: It's the first time I have the small craters in Mare Humorum in a picture. The smallest structures are just about 5 kilometres across (according to Virtual Moon Atlas). W.
  18. Wow, lots of detail in there! You can even make out Vallis Alpis... Great picture! W.
  19. Thanks for your comments @ Cath: I used an EOS 550D with a Tamron 2,8/17-50mm lens. The picture is from a series I took on Jan 15 (no moon around at that time:-) - finally got round to processing the RAW files. BTW, I ran the picture through astrometry.net on flickr - here's a link to the list of objects found in the picture: Starry night... | Flickr - Photo Sharing! W.
  20. Great picture - very crisp with lots of detail! W.
  21. It seems that the QHY5 can be a bit of a diva at times... The video was recorded at full resultion on a rather rather s-l-o-w Atom netbook. The recording software is not 100% stable, though - I had my share of crashes, too. After some experimenting, it seemed that the camera + software was more stable when I used a shorter, higher-quality USB cable. I'm not sure if this was the real reason or just a coincidence, but it's worth a try :-) Good luck, W.
  22. I've used both, but somehow I got better images with the QHY5, especially for lunar imaging. It has a higher resultion (1280 x 1024) and needs less light than the Philips, and it can handle higher contrasts (10 bit as opposed to 8 in the SPC9000). If you don't need the full field of view (for planets), you can just record a video of the region of interest at higher frame rates. With the full field of view, it's easier to center the planet on the chip. Owners of mirror-shifting SC telescopes will understand... ;-) I'm quite pleased with the results for lunar imaging, but I haven't tried using colour filters for planets yet. The price tag for a full set of filters was about as much as a 2nd hand IS colour camera... For a sample QHY5 image, have a look at this thread: http://stargazerslounge.com/imaging-lunar/118612-shadows-plato.html W.
  23. Great picture! I tried the same, but failed miserably W.
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