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osbourne one-nil

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Posts posted by osbourne one-nil

  1. I have an ASIair Pro. I connect it, via an ethernet cable, to a GL-iNet portable router, which is set to repeater mode and connects to my home WiFi. My home WiFi network consists of three TP Link Decos which mean that anywhere around my house or garden I can get download speeds of well over 100mbit. 

    This all works beautifully and I can connect and control my telescope when it's indoors, via my iPad, wherever I am in the house, no matter which Deco device I'm actually connected to. However....the minute I place my telescope outside, it all goes wrong and the imaging setup disappears. This is despite my phone or ipad still having a strong WiFi connection with blistering download speeds when standing next to it. 

    I can't quite tell if the problem lies with the Deco (home WiFi) the portable router or the ASIair, but it's so frustrating. Does anyone have any ideas?

  2. 57 minutes ago, Stu said:

    The only other thing you could try is wrapping the scope and dewshield in reflective matting. 

    Or move back to Suffolk!

    I've actually got a 6" RC which I bought for a bit of galaxy imaging. What I'm trying to do is get a setup which my youngest can have fun with and entertain himself with via an app while perhaps doubling up as an occasional imaging scope, so I have been wondering about one of the new Nexstar Evolutions. But thinking about it, I could just get an AZ GTI mount and let him use Sky Safari or something....


  3. 32 minutes ago, Stu said:

    I do indeed Piers, very kind of you!

    If you just give me a minute, I’ll have another quick look at the LZOS then pack it up and ship it off to you… 🤪🤣🤣

    So I should think! I won't be in Thursday or Friday so just mark it to be left in the porch - it's never locked so should be fine. 

    What a wonderful set up you have. I wonder how long until you buy something new though!

    • Haha 1
  4. I suppose the logical thing to do is try the Mewlon as it is and see what I think; ultimately if I’m having fun and the shots are nice, I’m the only judge! I’ve attached my Fuji XT3 before and shot the odd thing through it, unguided, and even then I went “wow” so if I can suss a bit of guiding then what’s to lose?!

    With a reducer it’s 1750mm (or thereabouts) so perhaps a dovetail long enough to mount a guidescope and ASIair pro is the starting point. Perhaps the 400mm Askar might be a more suitable guidescope at that focal length. I guess I have a lot of options to try before committing to another scope? I just want to have fun and get some photos the kids go “cool” to so they don’t think I’m a total geek. 

  5. I hate myself for admitting it, but I have become hooked on astrophotography. Currently, my imaging rig consists of a Vixen SXD2, an Askar FRA400, a ZWO ASI533 camera and an ASIair Pro + little guide scope. It's great; it works, but what I really crave is those tiny little galaxies  or groups like Stephan's Quintet. I need more focal length. I have three options floating round in my mind. 

    1. I have a Takahashi Mewlon 180. Visually, it's beautiful and it seems to hold collimation perfectly. It would seem sensible to use this if it's a reasonable solution. From what I've read though, it might be a bit of a pain when it comes to astrophotography; the focuser moves the mirror, it's not flat and I'd need a £350 reducer/corrector to make it work to any decent level. There are then issues with mounting any other gear as I can't find any tube rings etc and there isn't even a finder shoe on it. I suppose a very long dovetail on the bottom could give me enough mounting space. 

    With the reducer, I'd have an f9.8 with 1760mm focal length. 

    2. The obvious solution really, an RC6 such as the Stellalyra. It has a decent focuser, plenty of mounting options, and doesn't cost a lot more than a reducer for the Tak. It would also give me two focal length options, both a lot less onerous than the Tak but still enough to get me "closer" those targets I crave. My main concern is collimating an RC; it's not that hard is it? The astronomy tools site suggests it's a good match for my ASI533 camera. 

    3. Probably silly, but how about a long focal length refractor like a Stellamira 80mm f10? No collimation needed there (hopefully), but perhaps not enough aperture to pull in those fainter objects and a bit restricted on the focal length....if it would work at all that is. I do like refractors!

    My heart says make use of the Mewlon, my head says get an RC6. Any thoughts?

  6. Last night my SXD2 mount wouldn't power up. This made me very grumpy. 

    I discovered the fault- the 1mm of bare negative cable soldered to the metal spring clip that forms part of the cigarette lighter socket had come loose. I've mended it, but it did make me realise the importance of being able to provide power to the mount. 

    I know I can buy replacement cables from Vixen, but when I googled the plug at the end of the socket; a DC12V EIAJ RC5320A Class4, I was only given information on Vixen power supplies except for one Japanese electrical component shop. 

    Is this a unique power plug that only Vixen use? It seems to have the dimensions of 5.5mm x 3.3mm.

    Should I stock up?!

  7. If you're near Kendal, I'd head up the A6 just north of Shap and then turn left into Swindale. Not a street light for miles and miles. If you want a more traditional view, then how about the southern end of Grasmere just under Loughrigg Terrace  - that should give you decent views towards Andromeda and the Perseus area. If you're feeling really adventurous, forego the Lakes entirely and head up onto Great Asby Scar - no further than Grasmere and totally deserted! The Lakes are rammed!



  8. After many years of drooling, I got my SDX2 mount earlier this year. I adore it.  I bought it to make visual observing a joy and it's lived up to expectations. What's surprised me is how, by putting a camera at the eyepiece end of a telescope, it would yield very pleasing results.; I'm hooked. 

    At the moment I'm shooting through a SW 130PDS, which is actually excellent (particularly for the money) but its 650mm focal length is a bit of a bug-bear. It's not got enough reach to get those tiny objects or enough field of view to capture nice wide nebula, so I'm in the market for a wide-field refractor. 

    My heart says the Vixen SD 81S. I've always had a soft spot for Vixen stuff and it would complement my SXD2 mount nicely, although that is obviously totally unimportant. I believe these are excellent and Ed Ting agrees (assuming an SD 81S is just a refinement of an ED 81S). I don't think it comes with a dual-speed focuser (despite what FLO's page on it says) but I'm not sure that particularly matters. 

    The WO GT81 is a bit more expensive but does seem to be better value by giving the dual-speed focuser, a camera rotator and more options for mounting "stuff" associated with astrophotography. 

    I'd be shooting with an ASI533MC Pro and whichever scope I got I would get a flattener and probably a reducer too for the Vixen as I'd want to be around 500mm focal length. I would want whatever I got to be a capable visual instrument too so I feel this rules out the 60mm quad or quintuplet-type scopes. I know the 

    Is either the Vixen or William Optics scopes objectively better than the other or is there nothing in it really and it comes down to subjective judgments? 


  9. No USB ports so I'm thinking it goes into the ST-4 socket on the handset (which also has a LAN port). I'm in no way wanting to remove the handset from the setup as the Starbook Ten is just fab. If I have to, that's a different matter, but the whole aim of this is to enable me to get longer exposures than I can currently achieve...which is a pretty healthy 2 mins unguided as it is. 


  10. My father once "congratulated" me on becoming the first person in the family to be offered a place at a Polytechnic; that's how bright I am. 

    I am looking forward to receiving my ASIair Pro/guide scope/guide camera bundle tomorrow. I want to use this to add autoguiding to my SXD2 mount without the need for a laptop; I'm fine having my iPad or phone outside with me though. 

    I know for the polar alignment I'll have to set the guidescope to the main camera as, for now, I'll be sticking with my unsupported Fuji XT3 for the actual photography but will I "simply" need to connect the ASIair Pro to my Starbook Ten handset with an ethernet cable in order for the magic to happen or...I haven't really got a clue!

    Any help gratefully received. 



  11. Mine is fantastic. It's much more stable, lighter and smaller than my Porta II and it's held my Mewlon 180 rock-solid while that scope was waiting for its new mount. It now holds my dinky little 130PDS and the only problem is the size of the tube restricts movement very low or towards the zenith, but other than that it's a perfect match and vibrations damp down in less than 1 second. 

    Highly recommended!


    PS - my slow-mo controls keep slipping off too so I might cut a notch to allow the cables' screw to grip into. 

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