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craigb1970

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About craigb1970

  • Rank
    Nebula

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  • Gender
    Male
  • Interests
    Astronomy
    Music
    Fishing
    Gardening
  • Location
    Skelton Cleveland
  1. Thanks for the responses which are very helpful.
  2. Thinking of changing to a 2" star diagonal for my Celestron 8SE which is on a AVX mount, possibly to a Williams Optics. I have several 1.25" eyepieces and I sometimes use a f/6.3 focal reducer, I will also be doing a bit of imaging. My other option is to upgrade the standard 1.25" star diagonal, again to a WO. Also, if I change to a 2" star diagonal I think I will need to change the VB? I'm not really sure what the best option is and would appreciate any advice.
  3. Thanks for the comments. I have now played around with the software and can see that Stuart is correct and in raw therapee in particular I found I was able to turn debayering off and I then could see the true raw image with the checkerboard pattern. No longer confused on this issue - I think!
  4. Thanks for the comments. This is where I am confused for example in one of the books I mentioned it states "DSLR.... will need to be de-bayered to produce an RGB image" and in the other book "de-Bayerize (demosiac) the images,converting the Bayer matrix into colour pixels".
  5. Whenever I open a camera RAW image in windows ,Ufraw, Rawtherapee or Canons 'Digital Photo Professional' it opens as a colour image. I can change it to grayscale but otherwise it's a colour image. Reading 'Make Every Photon Count', 'Digital SLR Astrophotography' and other references on line I get the impression I should be seeing a black and white image with a checkboard pattern on it. I'm pretty much a beginner to AP and despite much reading I still don't get it. I would be most grateful if someone could clarify whether I should see a colour or black and white image when I open a RAW image in RAW image processing software and, if it should be black and white, any suggestions as to why I see a colour image.
  6. What are the advantages of pixinsight and do i also need Adobe Phoroshop or some other image processing software?
  7. Hi - Adobe Photoshop is very good but extremely expensive and if possible I would prefer to spend my money on optical equipment, there is still so much I need! I would therefore be interested to know what people use as alternatives to Photoshop for astro-photography including processing RAW images. I don't mind paying a reasonable amount but the full Photoshop package is out of my reach.
  8. It was a bit of a Heath Robinson affair as I was outside at the time so I just folded up a piece of paper released the camera holding screw slipped in the paper to the rear of the camera only and re tightened. Obviously the camera needs to be position horizontally side to side but I had expected that front to back the camera would align with the Celestron 8SE ota as there is no adjustment on the mount.
  9. Hi I have recently bought a Celestron piggy back mount for my dslr but when I tried to use it I found that it was necessary to pack the back of the camera to align it with the scope. I was wondering whether any one has had a similar experience and if so how they managed to resolved it.
  10. Hi Steve - this a lot more sophisticated than the mount I have and is probably what I need - thanks.
  11. Hi Steve Thanks for your response. There were other things going on such having to pack the camera on the piggy back mount as when the camera was flat to the mount it wasn't pointing where the scope was (is it usual to have to pack the camera/mount, it's the first time I have used it and I'm a novice so I don't know what is normal and what isn't t). I'll get the issues sorted and take some more photos and if there is still a problem I'll write another post. Craig
  12. Hi - I took some photos last night with a DSLR, piggy back on an AVX mount, of Orion. On all of the subs there is a lot of moon shine but in addition all of the stars are double. I guess this may be due to the moon which wasn't far away causing reflections within the lens but as I'm a beginner to AP I thought it worth checking on SGL.
  13. Thanks - I have got PIPP sorted and as suggested only using it for file conversion, also using AS!2 which I find easier to use. Astronomy and AP continue to be a steep learning curve but I'm making progress albeit slowly!!
  14. Thanks for the responses. Turns out MVI is actually .mov it was just the way it was displayed, sorry about that. But, PIPP successfully converted .mov to .avi, thanks for your help. Does PIPP automatically discard frames as the original file had 7000+ frames but when converted there were only 108? Is there a manual for PIPP so that I can understand what I'm doing and use ot properly?
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