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BrendanC

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About BrendanC

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  1. I have precisely the same question! Please consider this thread bumped. Can anyone help? I'm transplanting an auto focuser from a 130P to a PDS and I need the longer screws (actually they're allen/hex head screws) to fit through the bracket, through the focuser plate, and into the focuser body.
  2. Thanks! I'll go through that. There's also this thread which covers pretty much the same ground: I'm still fairly astonished that their own products don't seem to work interchangeably...
  3. I've got a Skywatcher 130PDS to replace the tube on my 130P. Everything set up fine, but I cannot figure out how to attach the Skywatcher auto-focuser I used to have working perfectly on the 130P. The problem is that the spindle on the Crayford focuser is really thin, and the grub screws on the autofocuser connector don't reach it. I have a nasty feeling there was an adaptor that came with the auto focuser packaging that I may have mislaid, which may have been for exactly this situation. If I'm right about that, then the only fixes I can consider would be longer grub screws (no idea what type/size/thread etc they are), or trying to remove the x10 part of the focuser to see if the other spindle is thicker (absolutely will not come off that I can see). Or, try to get my hands on an adapter. Or, make one. Or, just not use it, which would be a pity because I like it. Any ideas? Does anyone have a 130PDS with the auto focuser attached, and if so, how did you do it? Did you have an adapter that came with the packaging? If so, any photos would be very much appreciated so I can see what I might need to do - or any other advice, obviously! Thanks, Brendan
  4. Fantastic, thank you so much for this advice. I've already made the commitment, am picking it up Sunday morning. Everything you say chimes exactly with what I've come to understand, that the mount is the weak link but it should do for the basic stuff I want to achieve, until I decide to upgrade that. The DSLR and OTA are good, solid performers and won't need changing. I've got a sandbag holder to hang from the tripod legs to help with stability, but I totally understand the AZ GOTO mount is only just about up to the job. Great to know the auto focuser works, I've kept the spare bracket that came with it just in case. If it doesn't fit, I'll just use the manual focuser on the PDS which I understand is much better than the 130P, until I find time to get a bracket that works. Hopefully it'll just be a case of swapping from one to t'other. I've got a slightly extended eyepiece as a result of a previous purchase so hopefully that will mitigate the viewing. If not, and the extension isn't included, I'll be back here asking another bazillion questions about that!
  5. Thanks! Really appreciate the help. I reckon I'm going to go for it!
  6. Sorry to bump this thread but I have a chance to get a cut-price 130PDS, but I really must know the answers to these questions first, if ANYONE out there can help: * Can I put the 130PDS (ie dovetail fitting and weight) on the mount for this: https://www.tringastro.co.uk/sky-watcher-explorer-130p-synscan-az-goto-telescope-528-p.asp* Is the PDS OTA good for observing too, as well as imaging?* Does the Skywatcher auto focuser work with its focuser? Anyone?
  7. Sorry, should have mentioned: I don't have a lens for the DSLR. I just bought the body thinking, foolishly, that I could achieve prime focus with the scope. Nice idea though, and it's kind of why I'd like to hang on to the DSLR ideally, because it does open other possibilities of much wider field images (also, it's a modded DSLR with the IR filter removed). In future I could get a nifty fifty or a 135 f2 for other imaging. But right now I need to decide on what the best way forward is, with a PDS or a new camera. To decide this, I just need to know the answer to my four questions above!
  8. Which I think would be almost exactly the same weight as the current setup ie a 130P plus DSLR plus motor focusser, which is a shade over 4kg which my current mount can handle ok. Still don't know definitely if the motor focusser will work with it though, as in physically connect to it given it's a different kind of focuser. I think it will, but don't know. Still don't know definitely if the dovetail for the PDS will work with my mount. I think it will, but don't know. Apparently the PDS has a vixen dovetail fitting, but I don't know if that's the same as for the 130P. Still don't know definitely if the viewing is compromised with the PDS compared to the P. I think it isn't, but don't know. Still don't know what the chances would be of selling the 130P OTA on its own. At all. So many unknowns! If I can confirm these questions then I'm getting a PDS. If not, then I'll probably be taking the other route ie ditch the DSLR and get an astrocam.
  9. Nice shots! Still need to know if the mount for my kit will work with the PDS OTA however...
  10. This is my full kit: https://www.tringastro.co.uk/sky-watcher-explorer-130p-synscan-az-goto-telescope-528-p.asp Yes, I know, very basic, better for visual than for photography, etc etc etc I'm fully aware that I'm not going to get the results as per the 130PDS thread, but I do want to take a next step towards that as an aspiration, and the PDS could just be what I need. I just need to know if the mount will handle the PDS. I figure they're similar in weight (around 4kg - yes, I actually just weighed mine to check) so it should be fine weight-wise, just not sure of the dovetail and whether the auto-focuser, which I have, will work with it because I'd quite like to keep it. Totally appreciate that a strong EQ mount is called for, but there's absolutely no way I'm going to spend £999 on one, not until/unless I'm very confident indeed that this is something I want to pursue.
  11. On 'another astro forum' which shall remain nameless! (I don't want to get involved in a bunfight!) Gist is that someone tried to use a ZWO120 cam but couldn't get focus even with the focuser all the way out, had to use adapters to make up the extra few mm. I get that the camera is more for planetary use, and for that you probably would insert a Barlow anyway, but it just gave me the willies, that's all. The 130PDS thread is truly amazing, and it's pretty much made up my mind. Now, if I could just get my local supplier actually to respond to the emails I've sent asking a couple of questions about it, I'd be sorted. Actually, I may as well copy them here in case anyone can help! These are they: * Can the mount for the 130P handle the PDS (ie dovetail fitting and weight)? * Is the PDS OTA good for observing too, as well as imaging? * Does the Skywatcher auto focuser work with its focuser? * Finally, what are the chances of being able to sell just the 130P OTA to make up towards the cost of the 130PDS? I've seen loads of ads for the PDS, none for the P. I just want to make sure I'm not making another mistake. I'm doing this on a budget and can't afford mistakes. Thanks again, all the responses on this forum have been terrifically useful.
  12. Good point, and I'd already been through the thread at https://stargazerslounge.com/topic/210593-imaging-with-the-130pds/?tab=comments#comment-2247736. Stunning images. So that means there isn't a problem with dedicated astro cameras, right?
  13. Hi again, so I've heard tell that the PDS isn't great for prime focus for dedicated astro cameras. This surprises me greatly. Any comments on this? I was virtually about to buy a PDS but this concerns me. I'm confident from what I've found out that it'll work with the DSLR, but if I ever want to invest in an astro camera, I'll be wanting to achieve prime focus with that too.
  14. Ta. I might go the PDS route. Or, I might go the new eyepiece camera route, assuming I can get prime focus with one. Looks like I managed to choose almost precisely the exact combination of equipment that doesn't work. Thanks for the advice, really appreciate it.
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