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PaulABS

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About PaulABS

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  1. Hello All, Paul from UK AstroBuySell here. I block many IP addresses because they are known sources of spam and scams. If your IP is blocked and you are a legitimate user, I can give you a generic user name and password to by-pass the IP block. Then, if you want, you can register on the site using your own credentials for entering ads or responding to ads. Cheers, Paul.
  2. Celestron's AstroFX is actually made by Diffraction Ltd and is a subset of MaxIM DL. I just used AstroFX (the software that comes with the camera) and things worked out much better. Now the trick is to obtain good flats with the OSC camera... I am finding it much more challenging than with a mono camera! I assume AIP4WIN could also be used for OSC processing, but I'll leave that for another day. Thank you, Paul.
  3. Hi Rich, Thank you for confirming that the Bayer matrix plays a role with flats! I use a Celestron Nightscape 10100 (KAI 10100 ccd). I typically use AIP4WIN, but I suppose I should try the camera's software which is AstroFX. I did notice that shorter flats (1 sec or less) yield strange results, while longer flats (ie a few seconds) work better, as with your camera. Cheers, Paul.
  4. Hi All, I have good experience with monochrome imaging and processing. I just got a colour ccd camera and I'm having a hell of a time taking good flats and then applying them. Is the procedure for taking flats and applying them the same with a colour ccd vs a mono ccd? Thanks, Paul.
  5. Someone mentioned to me these could be flying paper lanterns celebrating the last day of Ramadan (don't quote me on this), but it could be an explanation. Cheers, Paul.
  6. If no one answers, you can figure it out as follows: "It requires an 18% grey card, available at most camera shops, and a full or nearly full moon. You make images of the card of equal exposures through each filter using the moon for illumination. You import each of them into Photoshop or whatever post processing software you use and merge them to form and RGB image. It should look pretty much like the grey card although it might be a little lighter or darker. Then you measure the values of each channel in one spot. The Color Sampler tool in Photoshop is great for this. A little simple math wi
  7. Hi Mike, Take a look at this very good tutorial for DSS. Towards the bottom he says to increase the saturation to bring out the colour! http://www.stevebb.com/deep_sky_stacker.html Cheers, Paul.
  8. Hi Mike, I agree with Carole - it's a fine image! Your approach with DSS is correct (ie align RGB, basic curves, then save). With Photoshop, I always work with curves and touch up the histogram last. Cheers, Paul.
  9. Further to my note above, see the examples below. Same image of M42, one opened with AIP4WIN the other with the Canon software. These are raw images, completely unprocessed. There is no way to make the AIP4WIN image similar to the Canon software image, and it's impossible to get a decent image with further processing (in Photoshop) with the AIP4WIN image. Paul.
  10. Hello, Correct on the auto-stretch and regarding posting on the AIP4WIN Yahoo group! Richard Berry (author of AIP4WIN) replied to my query and gave an explanation of what's going on. The bottom line is that I had to change the white point to 0.9995 in the DSLR & Bayer conversion settings box (the default is 0.995). I have no idea how someone is supposed to figure this out on his own! Especially when other programs, such as Photoshop and the Canon software (that comes with the camera) display the image just fine, and actually display it better than AIP4WIN, even with the adjusted white po
  11. Hello All, Are there any AIP4WIN experts out there that can help me with this: When opening Canon raw files, the images are extremely grainy with multi-coloured pixels. Below is an example. When opening with the Canon software, the image looks just fine. What am I doing wrong? My settings for "DSLR & Bayer Conversion" are: - VNG - DeBayer, Auto white balance, Auto-stretch. - AIP4Win version 2.4.0 I tried all the other settings in the Conversion menu to no avail. Thanks, Paul.
  12. Wow, outstanding image!! I hope to be able to capture something like that in the future! I already have the 80ED, now I just need a better CCD camera! (I've been eyeing the Atik cameras!) Cheers, Paul.
  13. Hi Nytecam, Thank you for creating the video - I enjoyed it! The camera you use is quite sensitive - very nice! Cheers, Paul.
  14. Hello Everyone, Here's an image of NGC 891 with some basic equipment: Orion 80ED at prime focus (600mm) with a Meade DSI Pro2 and Astronomik LRGB filters taken from urban skies over three nights. LRGB = 80 min each (4 min subs x 20), total exposure 320 min (5.3 hrs). Autoguided using a Meade 10-inch LX200GPS and DSI Pro at f10 (2500 mm), 1 sec guide corrections, with PHD Guiding. Given the modest aperture and light polluted skies I'm fairly happy with the result, although someone with better image processing skills may be able to smooth out the noisy background. Cheers, Paul. ---------------
  15. Hi Baggywrinkle, Drop me an email and I'll get you access. I block a lot of foreign IP addresses to cut down on junk ads... and there lots of those coming out of China! Cheers, Paul UK AstroBuySell
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