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Andywilliams

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About Andywilliams

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    Star Forming

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    Male
  • Location
    Hawkes bay, New Zealand
  1. Hi Neil, These are great images. I am buying an asi1600mm for use with a skywatcher 150pds Newton. I am also interested in medium/widefield nebula images in narrowband and I am very tempted by the Samyang 135mm f2 lens and attaching it to the 1600 and filterwheel. Elsewhere on this site there seems to be discussion about spacers and it being relatively tricky to get focus on the sensor but you have obviously had success ! Would you mind showing me a pic of or a brief description of your setup ? so that I can, quite frankly, copy it? Best wishes and clear skies, Andy
  2. Can I also ask for advice on coma correctors. There seem to be different types. Could you all recommend a CC for the 130 PDS that wont break the bank? thanks again, Andy
  3. Hi Bob, Many thanks for getting back to me. I gave up on the alt az mount very early on indeed. I had my planetary successes by mounting the 127 mak onto my star adventurer. The scope, coupled with my dslr took it to just about capacity for the SA mount but it still seemed balanced and worked well. I look forward to buying my 130 PDS and sharing any notable results with you all. I have a project in mind which is imaging M45. I find the diffraction spikes really attractive and I am hoping to capture some good star colour as well as nebulosity. It is for a Maori friend of mine and I hope to get such a good image that I can make it into a nice sized printed canvas for her. M45 is known as Matariki in NZ and is a new year celebration when it first rises at dawn. I will also, no doubt, be begging for advice should I need to do secondary collimations !! Clear skies ! Andy
  4. Hi Roland, Many thanks for your reply. I have been doing quite a bit of astrophotography, mainly dslr with kit zoom lens mounted on a skywatcher star adventurer mount. Also a dslr mounted on a 127 Mak for planetary stuff. This means I am happy with polar alignment and also with dslr camera settings for captures. I feel like I am ready for the next step. I had decided to look at the ZWO ASI1600MM so the fact that you mention this camera gives me some confidence with my decision making ! I will have to read about collimation of the secondary mirror. Hopefully it is not too painful ! Here is a small selection of some of my little victories but I cant wait for the next step ! best wishes, Andy
  5. Hi All, Actually, ignore the RC question as I have now read and understood enough about focal length to see that this would be a bad idea ! I have also been looking at the GSO 150mm f4 scope. Does anyone have any experience or top tips on the GSO vs the SW 130 PDS ? Clears skies all. cheers, Andy
  6. Advanced Members 184 170 posts Location: Hawkes bay, New Zealand Report post Posted 20 hours ago Hi all, Having read a fair bit of this thread and also being impressed by the quality of the images, I am very tempted to buy a 130 PDS and give it a crack ! A couple of questions though and I apologise in advance if these have already been asked ad nauseam. I have enough money to invest in a HEQ5 pro. I also have enough to put my first steps into mono ccd imaging. I don't have enough left over for the recommended 80mm esprit, so I thought I might have a go with this impressive scope. 1) I will need to saw off the focussing tube from the get go ? I find this a little bit scary. 2) do you need to do the sawing if you buy a 150 PDS? 3) this scope vs a 6 inch RC? any major differences? the thing putting me off the 6 inch RC is the reduced FOV. Is this necessarily an unsurmountable issue? 4) can you please recommend a ccd mono camera that will not under/over sample with this particular set up? So many questions !! Thankyou one and all and clear skies ! Andy
  7. Hi all, Having read a fair bit of this thread and also being impressed by the quality of the images, I am very tempted to buy a 130 PDS and give it a crack ! A couple of questions though and I apologise in advance if these have already been asked ad nauseam. I have enough money to invest in a HEQ5 pro. I also have enough to put my first steps into mono ccd imaging. I don't have enough left over for the recommended 80mm esprit, so I thought I might have a go with this impressive scope. 1) I will need to saw off the focussing tube from the get go ? I find this a little bit scary. 2) do you need to do the sawing if you buy a 150 PDS? 3) this scope vs a 6 inch RC? any major differences? the thing putting me off the 6 inch RC is the reduced FOV. Is this necessarily an unsurmountable issue? 4) can you please recommend a ccd mono camera that will not under/over sample with this particular set up? So many questions !! Thankyou one and all and clear skies ! Andy
  8. A definate yes please from me......I look forward to seeing more of you guys images with this lens. Cheers, Andy
  9. Hi All, I think this may have been asked before but I am still not getting this right. My nifty fifty canon 50mm prime lens. I cant focus well due to a) it wont auto focus for obvious reasons. b) when I attempt to manually focus the drive wont engage and therefore the focusing ring just goes around and around with no change in focus. I know that you are meant to be able to depress the shutter button halfway to engage the focus ring? but that doesn't seem to work either? Do please educate me . Cheers, Frustrated Andy from NZ
  10. Hi Rob, Is this imaged through a Samyang f2?? Is so, its fantastic. Just one question. The stars are showing quite pronounced diffraction spikes (I personally really like them). Is this a quality of the sheer length of the integration time here? or is it a quality of this lens?. I wouldn't have expected to see spikes like this off of a camera lens ? Many thanks, Andy
  11. Thanks heaps for your reply. This sounds like a very sensible option and the photos in this timeline demonstrate what can be achieved with that setup. cheers, Andy
  12. Which is the more suitable for this type of imaging ? A 135mm prime like this? Or a small refractor, i'm thinking a William optics zenithstar 61 ? I have a little pot of cash but would like to get the best bang for my buck. It would be used with Dslr's and mounted on a star adventurer. One of the main reasons I ask is that these images are extremely good ! Very well done Cheers, Andy
  13. Only, Could I please ask you for your workflow for your processing of my image? With many thanks, Andy
  14. brilliant.......I will use when needed from now on .....thankyou.
  15. I have to admit that kappa-sigma clip is something I don't fully understand and therefore I tend to leave DSS on its default settings. Ignorance is not always bliss !
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