g30rg313 Posted March 21, 2016 Share Posted March 21, 2016 I've seen a scope with no tripod and no finderscope. However, with it being slightly smaller diameter and length than the one i already have i am wondering if it will be worth getting. Im thinking it might be handy for portability and maybe better for astrophotography with the f ratio being lower than mine. Im just unsure whether it will attach to my mount as i have a AZ goto mount. I'm really in a quandary here guys. Any advice would be greatly appreciated. http://pages.ebay.com/link/?nav=item.view&id=191829811957&alt=web Link to comment Share on other sites More sharing options...
Dave In Vermont Posted March 21, 2016 Share Posted March 21, 2016 I personaly wouldn't touch it. ------------------------------------------------------------- Returns: Seller does not offer returns. You are covered by the eBay Money Back Guarantee - opens in a new window or tab if you received an item that is not as described in the listing. ------------------------------------------------------------- I'd suggest buying from a reputable dealer in the event something goes wrong. But it would help us if you would explain what exactly you have in mind for such. My 2¢, Dave 2 Link to comment Share on other sites More sharing options...
Marky1973 Posted March 21, 2016 Share Posted March 21, 2016 Isn't tthat a Bird-Jones type as well - which I believe are to be avoided? Link to comment Share on other sites More sharing options...
DaveS Posted March 21, 2016 Share Posted March 21, 2016 Ditto on that. There's a very good reason people buy the 130 PDS for imaging. It works! Also if you have any thoughts at all about imaging, or even wondering why it's such a money-pit get yourself this book http://www.firstlightoptics.com/books/making-every-photon-count-steve-richards.html Steve also posts on here as Steppenwolf. 2 Link to comment Share on other sites More sharing options...
Marky1973 Posted March 21, 2016 Share Posted March 21, 2016 Oh, and if you want something portable - keep an eye out on Astroboot - they often have cheap refractors that would be good for grab and go visual - there is a SW Heritage 130P on there at the moment for £45, which is very portable.... But definitely check out the book above before thinking about astrophotography... Link to comment Share on other sites More sharing options...
michael.h.f.wilkinson Posted March 21, 2016 Share Posted March 21, 2016 The BIrd-Jones types such as this one should be avoided at all costs. They combine the disadvantages of a fast Newtonian (comparatively large secondary due to fast primary) with the disadvantages of a slow Newtonian (small field of view), and for an encore add further collimation problems. I haven't a barge pole long enough Link to comment Share on other sites More sharing options...
Gina Posted March 21, 2016 Share Posted March 21, 2016 ++++ For Steve's book - excellent My best imaging purchase ever! Link to comment Share on other sites More sharing options...
g30rg313 Posted March 21, 2016 Author Share Posted March 21, 2016 Thank you everyone for your informative and grounding views. I have been suitably calmed and will not rush into anything I may regret later. I'm going to do a lot more research and take my time to decide exactly what I'm looking for. I'm wanting something that I can easily take with me when I travel on a train to visit my sister in Liverpool. I would love to share the astronomy experience with her as I know she is interested too and cannot afford a scope for herself. Link to comment Share on other sites More sharing options...
michael.h.f.wilkinson Posted March 21, 2016 Share Posted March 21, 2016 The 130mm F/5 Newtonians are certainly compact. A 5" Maksutov is even more compact, but has a much narrower FOV. A 5 or 6" SCT is also very compact and light, but also has FOV restrictions, but less than the Mak. Link to comment Share on other sites More sharing options...
alacant Posted March 21, 2016 Share Posted March 21, 2016 Hi. In fact it's really slow. I once tried at f8. Hopelessly long exposures. The ebay one is even slower. HTH Link to comment Share on other sites More sharing options...
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