Jump to content

NLCbanner2024.jpg.2478be509670e60c2d6efd04834b8b47.jpg

Simon Dunsmore

Members
  • Posts

    484
  • Joined

  • Last visited

Posts posted by Simon Dunsmore

  1. 21 minutes ago, ollypenrice said:

    In fact, they don't. The original purpose of adjustable guidescope rings was quite the reverse. Early autoguiders were of very low sensitivity and the imager would have to search for a guide star by aiming the guidesope off axis towards one. Indeed, before that there were manual guidescopes which, likewise, would be aimed towards a star on which the tormented imager would try to hold the mount by means of the keypad. Mercifully modern guide cameras will always find a star so it is better to have a rigid mounting. You do not need to align the guide and main scope.

    I'm not sure why Louise is doubtful about the finder scope bracket. Some of them have only two adjustable alignment screws and a third which is spring loaded rather than adjustable. This is fine for finders but very unsuited to guidescopes. Make sure your guidescope is bolted down hard

    Hi Olly, 

    Thanks for your message. That explains the tube rings, thanks. 

    Just to clarify, are you saying its not a good idea to use the finderscope shoe? 

    Also, should I be looking for a 50mm or 60mm guidescope? There are so many out there and I've looked at so many I'm a bit baffled. 

    One last question, I guess I d be best with a none rotating focuser, so as not to twist the camera wire???? 

    Thank you both for your help 

    Simon 

     

  2. Hi Louise,

    Thanks for the quick response. 

    I'm planning on using the QHY5-II for guiding and polar alignment and a Canon 60D dslr for imaging DSOs. 

    I was planning on using the finder shoe bracket because I have a Telrad mounted on the tube rings as a finder, I really get on well with that, but I guess I can remove it. 

    Also, I see some guide scopes allow for alignment with the main scope and other are rigid, does that matter? 

    Thanks again for your help 

    Kind regards 

    Simon 

     

  3. Hi Folks, 

    Can I ask for a little more advice please? 

    I've slowly been building up a astrophotography rig. Presently I have Heq5 pro goto mount with Skywatcher ED72. Camera QHY5-II. What Guidescope would suit best? I'm thinking a 50mm, ideally I'd like to fit it the finderscope shoe bracket. I see that Skywatcher do a 50mm model that is within budget. https://www.firstlightoptics.com/guide-cameras/sky-watcher-evoguide-50ed-guidescope.html

    I'd appreciate your advice. 

    Thanks in advance 

    Simon 

  4. Hi People, 

    So I need a good talking to as I'm really undecided. 

    I am presently selling my set up of EQ5 and 200pds to purchase a more appropriate mount for imaging with my 72ED. I was set on the Heq5 but then came into a little more cash allowing me a few more options. 

    I can now afford to buy the Heq5 for 797 new with shipping or I had an offer of 800 for a neq6. I could then also keep the 200pds and use either scopes on the neq6. 

    I'm concerned about the portability of the neq6 and just can't seem to make up my mind. 

    Put me out of my misery, what would you do? 

    Thanks 

    Simon 

  5. Hi Folks,

    I wonder if you can clear up a quandary that my tiny brain has been struggling with?

    The Polemaster fits directly to the mounts axis and therefore aligns the mount with polaris….ok so far. How does using Sharpcap through a guidescope work. I understand that the guidescope and the mount are pointing roughly at Polaris but surely, if the guide scope is  a little out than doesn't this effect the polar alignment. As you may have guessed I'm swaying between buying a guidescope and camera or the QHY, both work out about the same cost.

    Any help would be appreciated.

    Thanks 

    Simon

     

  6. Hi, 

    I've posted a few questions of late to the forum and your answers are really helpful, so huge thanks for everyone's patience. 

    I own an EQ5 pro goto mount. Presently use it for visual with a 200pds. I know that this set up would be really pushing things for photography, as I really can't afford to replace the eq5 with a Heq5 or eq6 I was thinking of selling the 200pds and replacing it with a 150pds. I believe that this is roughly 5kg + say 2kg for camera and guidescope. Will this set up be OK for imaging? 

    Thanks for your help and clear skies to all. 

    Regards 

    Simon 

×
×
  • Create New...

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue. By using this site, you agree to our Terms of Use.