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26Left

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About 26Left

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    Star Forming

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    Sussex
  1. All very good advice; thank you Neil. I use a DBK21 and their own IC.Capture software. For Jupiter and Mars, I tend to set the gamma around 60, but I don't know what that number actually means. For Saturn, I experimented with 80 and 100 and found 100 the best. Yes, the details there, and perhaps I could bring it out in Photoshop. But, I like the subtle look with Saturn. Tom.
  2. Neil: yes, it makes more sense to alter the gamma at capture, and that's what I did last night (a night of very good seeing). I'm very pleased with the result. The rings have more "weight". Yes, there is less contrast on the planet, but more detail and a more natural look (IMO). Thanks, Tom.
  3. It was a six minute run at 7.5 FPS. So there were 2700 frames captured. I used Ninox to grade them and kept the best 2000. Then aligned/limited them with Registax and kept about 1500.
  4. Thanks all for your comments. Sorry it's taken me so long to check back. Neil: Thanks for your suggestion. I use PS so I added a Curves layer and pulled the centre up a little. Is that what you mean? I have attached the result - the newer version is the lower Saturn. The rings look a little better but, as you say, the contrast has gone a little. Should I pull the curves up a little more again? What do you think? Overall, I think the second image looks a little more natural. Spaceboy: I use the DBK21, which is a one shot colour camera, because I can't be bothered with filters! I used a x2.5 PowerMate on my C11, so I thinkt the image scale is 0.17 arcseconds per pixel. But, I reduced the image to 75% of its original, because I did not like the full size image. Cheers, Tom.
  5. I haven't posted for a while, but I thought I would share this Saturn image. Seeing was pretty good for me last weekend. Tom.
  6. 26Left

    Saturn

    Strange, because I can focus fine with my C11 and x2.5 Powermate. Having said that, I think this combination gives a little too much gain. A decent x1.5 Barlow would match the seeing conditions I usually have much better. But, I don't think such a thing exists.
  7. I'm very proud to see one of my pictures in Sky at Night Magazine this month (April 2012, page 27) :)
  8. Thanks all. It was a DBK21 on the back of my Meade 127 refractor with a x3 TV Barlow and an extension tube. My 'frac picks out colour really well, to the point where I have to wind down the saturation quite a bit in Photoshop. The C11 is the opposite. I wish I had an 11" refractor
  9. Me too. I don't get much from these visually, unlike M81/M82, which I love to observe. But, I think it's great a Milky Way object and another galaxy apparently side by side.
  10. Hello all, Here is my image of M51, the Whirlpool Galaxy, taken on 19th February 2012. 34 x 4 minute exposures @ ISO800 with my Nikon D7000 DSLR. In June 2011, I took an image of M51 to capture supernova SN2011dh. I have presented the two images aligned as an animated GIF: I'm not sure if the lightbox on this forum deals with animated GIFs correctly. If not, it can also be see at http://26left.co.uk/animations/SN2011dh.gif There is currently a dot where the supernova was. I think supernovae die down in a much shorter timeframe than eight months, so perhaps this is a foreground star or an object in M51 that happens to be in the same apparent position. It would be interesting to see an image from 2010 for comparison. Well, this is the nearest I get to real science Tom.
  11. Having imaged Jupiter for several months with my C11, I thought I'd go back to my 5" refractor at F/30. Jupiter's dropping into the murk, so this image scale is probably more realistic to use now.
  12. I'm not getting particularly great results on Saturn so far this year, perhaps because it is so low. Here one from a few nights ago. I guess the lighter band in the north is the storm that I read is still active this year. Cheers, Tom.
  13. Having just fitted a Moonlite focusser to my Meade 127, I was keen to try some imaging last night. It was a little damp, and transparency was not ideal. Here is my image of the Owl Nebula M97 and the galaxy M108. This was the result of 28 x 4 minutes subs at ISO 800. The image would have benfited from some more subs, but the at 2am, the targets were an hour or so past the meridian and the camera was about to hit a tripod leg. Here's M108 in more detail: ...and M97: The new Moonlite works a treat. Just set it and forget it Cheers, Tom.
  14. Last weekend was great for imaging. It had rained during the day on Saturday and transparency was excellent. Here is my image of M35. 25 x 180s @ ISO800. I particularly like the contrast in star colours between the two clusters. Cheers, Tom.
  15. Thanks for all your comments. I must do some research on Mars. As we only see it once every two years, I tend to forget about it. But, it seems to be as dynamic in nature as Jupiter.
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