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About Rolf

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    Moon photography, software development
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    Cologne, Germany

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  1. Very nice picture! The terminator and limb zones are both clearly visible, without sacrificing local contrast. Well done! - Rolf
  2. That's a wonderful image of this interesting feature! Very good resolution and perfect tone mapping. Well done! - Rolf
  3. That's a very nice experiment! I used to create 3D views by combining two images taken at the same selenographic longitude, but with different libration angles. To show the 3D effect, however, you need a 3D TV set. Your technique works with a simple monitor. Very good!
  4. Great image! The full resolution version shows a lot of detail.
  5. A very nice photo! I like this orientation of the moon. It looks like one is in orbit around the moon heading somewhere between Langrenus and Mare Crisium. Sharp image, and superb processing!
  6. You captured this great occultation event very well! First I saw Aldebaran in the second picture only, but then I discovered it in the first view close to the sunlit limb as well. Very nice! Did you use the H-Alpha filter to increase the contrast within the lunar image, or to improve the visibility of the star close to the bright lunar image? - Rolf
  7. Hi Helen, Great Panorama! I like the first version better than the one with autolevels. The latter one is burnt out at many places. Perhaps you could edit the tone mapping a bit manually. As to the sharpness variations among panes, I usually take more than one panorama in rapid succession (well, of course automatically using MoonPanoramaMaker ), so for each pane I can choose the best one. In my case this is relatively easy because MPM names the video files such that all files of the same pane are stored consecutively. And it helps that "pane number 025" in all passes points at the sa
  8. Hi Graeme, Newtonians usually give better image quality as compared to SCTs of the same size. They need a stronger mount, though. For my Vixen Sphinx the C11 is, therefore, easier to handle. Otherwise I would love to use a large Newtonian, too. Panorama Studio Professional 3 gives you lots of control. For example, you can edit the keypoints which are used to stitch the images together. But even in fully automatic mode it usually works very well. As far as I remember only the "professtional" version supports 16bit, which of course is important. If you want to experiment with Moon
  9. Hi Michael, Thank you very much for the additional info! Interesting that you increase the f ratio just by extending the back focus. I would have feared that this at the same time deteriorates the image. After all, the optical system is optimized for a certain position behind the prime mirror. Your image shows that this cannot be too bad. So far I did all my panoramas with the ASI120MM-S (3,75 micron pixels) at f/10. I found that the seeing must be really good for a larger f ratio to make sense. I'm planning to use my ASI178MC (with the same small pixels as your camera) for color wor
  10. Nice panorama! (As perhaps some of you have noticed, I especially like moon panoramas. ) This one shows much detail and covers the North Pole region very well. My first thought was: How is it possible that you covered the full moon with just 18 frames, using a 14" telescope. But then I realized that the camera was probably at prime focus of the short Newtonian. That makes sense. With my C11, using the same camera, I need at least 60 frames! I agree that photomerge in PS isn't a good choice. I got the best results with Panorama Studio 3 Professional. But your result with ICE is very g
  11. For a "first light" image, this is very nice! It shows much detail for a 90mm aperture. And you managed to cover both the terminator and limb regions in one picture without underexposing one side and overexposing the other.
  12. Hi Michael, Thanks for posting this nice panorama. It shows much detail, and the tonal mapping is very good! Did you use a projection lens between the C8 and the camera, or was it at prime focus? I'm planning to use an ASI178MC on my C11 for color panoramas of the moon, so it should be a similar geometry as in your case. Which program did you use for stacking? All the best, Rolf
  13. That's really a great image, Avani! It shows extremely fine detail, and your image processing technique is superb. Living in Germany much farther north, at the moment we can image Kies Pi only during the waning phases. This is my latest result (Oct. 14): The snippet is part of the panorama I presented in this thread. It shows less detail than your stunning image, but Kies Pi and its central creater are clearly visible. The idea of the article series with Chuck Wood sounds great. I was very sad when he stopped LPOD. But it would be very difficult to convince Chuck to engage
  14. Great video! I'm glad your 20 hour's patience was rewarded in the end by a perfect transit. Rolf
  15. Great picutures! I wish you good luck with the panorama, in particular that there will be no gaps. You are using a camera with a large sensor (21,9mm diagonal). I was wondering if the C11 FOV is flat enough to get sharp images up to the corners. So far I'm using an ASI12MM-S on the C11, where this is not a problem. Do you see any image degradation towards the corners at 100% magnification? Of course a larger sensor is very helpful in panorama photography. All the best, Rolf
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