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johninderby

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Everything posted by johninderby

  1. A cheap alternative for now is to replace the steel set screws with nylon thumbscrews. They will still hold you eyepiece properly but won't mark the eyepiece barrel. John
  2. The baseplate is attached with double-sided foam tape (comes with the base) to the OTA. Holds everything very well. Just fit it indoors in a warm place as the adhesive used in the tape takes about 24 hours to reach full strength. If fitted in the cold it doesn't always hold on that well. The Telrad then simply fits onto the base and is held in place by two small thumbscrews. John
  3. Orion Optics UK 14" 1/11PV dob with StellarCAT and a 3.7m Ethos SX. High power heaven. But seriously tracking is like adding a couple of inches of aperture, you really can see more as you have the time to concentrate on what you're looking at. John
  4. I use a Telrad and a 9x50 RA finder, which is a combination that a lot of people use. While the Telrad with it's red circles is very easy to use it is still a non-magnifying finder, so if you have light polluted skies it can be harder to see fainter targets but you can see a large area of the sky. With the 9x50 finder you can see fainter targets more easily but you're looking at a much smaller area of the sky. That's why the combination of the two finders works so well as they compliment each other. You can get a riser base for the Telrad to lift it farther from the OTA that makes it easier to
  5. Unfortunately it's a case of SkyWatcher being shipped direct from the far east vs Orion being shipped to the US first and then onto the UK. All those extra charges. John
  6. Hi Are you sure about there being no Barlow installed in your scope? Found this in the specs for your scope on a dealers website. FOCAL LENGTH: 1000 mm (39.37 in) (achieved with a help of a built-in Barlow system placed at the back of the focuser John
  7. For something cmppletely different have you considered a Monocular. The one below is actually half of a pair of binoculars. It's very lightweight and thus easy for a small child to hold, and the optics are very good, giving nice sharp views. Bresser Safari Sprite 10x50 Scope http://www.amazon.co.uk/Bresser-Safari-Sprite-10x50-Scope/dp/B000UJ8JQ8 They also do a 10x20 version. I bought one a while ago and have been very impressed with it and it's also small and light enough to fit into a coat pocket. John
  8. There was only one mark I TMB Planetary ever made, the original 6mm which had some reflection problems caused by the internal construction . A version that had the problems sorted out was called the II to differentiate it from the original, but the optics were unchanged. Every other focal length ever produced including all the clones is actually of a mark II internal construction, although for some reason TMB only designated the 6 mm as a mark II. I did a test of the various clones and a TMB Planetary II 6mm a while ago and the TMB II actually proved to be the poorest performer of the lot.
  9. Thanks Steve Please don't bother getting another base shipped as I already have two spares. (Scopes'n'Skies Astroboot:)) and I have used one of the Telescope Services bases to fit the focuser to a 150PL OTA. Cheers John
  10. I'm quite happy to keep it thank you. The focuser came in white molded foam packaging that fitted the focuser exactly and there was no room for a base. Also what about the black fine focus knob instead of the gold one? If they just shipped the wrong focuser why the different knob? As it was shipped without the base I assume that they shipped this particular focuser on purpose. John
  11. I've had a look at the picture of the focuser on FLO's website and find it's not the same as the focuser that was shipped direct to me from Opticalvision. The one I received is the same as the SkyWatcher Low-Profile focuser but without a base and has a different fine focus knob and also comes in different packaging to the Low-Profile focuser. The one I got as in the photo below has the following reference. Product Code 20242 - Dual Speed Maknewt Focuser So it looks like it's not a case of someone at Opticalvision simply shipping the wrong focuser unless this is a temporary situation. Perhaps
  12. Easter Island Eclipse National Geographic channel Monday 15/11 - 2:00 pm repeated Tuesday 16/11 - 8:00 pm Watch the rarest celestial occurrence, a total solar eclipse, as it happens above Easter Island -- one of the most mysterious and remote archaeological sites in the world -- broadcasting just hours after it occurs. The last time an eclipse occurred over the island site was A.D. 591. Follow scientists as they gather new research that could play a key role in the race to understand the sun and its extraordinary impact on Earth I've already set it to tape this aft. John
  13. The TMB clones are available new for £36.00 from Alan at SkiestheLimit. I've tested a number of them including the genuine TMBs and they are indeed the same optically although if anything the clones have better quality control. Lots of people on SGL have bought the clones. Beware of some of the TMB II 6mm ones on eBay as some sellers are overcharging for them at £49.99 but they can be found for £36.00 if you shop around. http://cgi.ebay.co.uk/1-25-6mm-58-Degree-TMB-designed-Planetary-eyepiece-/160487602216?pt=UK_Telescopes&hash=item255dce7828 The Paragons were discontinued a few years ago
  14. Instead of the Meade 5000 80 Triplet (FPL-51 equivalent) you could get the Telescope Service TS 80/480 FPL-53 Triplet at £550.00. Better optics and a better focuser. I know, I bought one of the new TS80/480s after studying what was available in that price range. Amazing optics that are nearly as good as a TMB.... http://www.teleskop-express.de/shop/product_info.php/info/p3881_TS-Triplet-FPL53-Apo-80-480mm---f-6---no-colour-fringes.html These new Chinese made triplets with their FPL-53 O'Hara glass that are just starting to arrive from China have just moved the goal posts for what you can expe
  15. The Astro-Professional ED80 APO is £375.00 and is a cemented triplet that's the same specs as the Intane and in fact I expect it's actually made by Intane. John
  16. Or..... ED-80 APO refractor Astro Professional £375.00 http://www.astro-professional.com/html/ed_80mm-3.html John
  17. Here's an image from Lunar Map Pro that may help. Ina is in the centre and you can just make out the name in yellow when you enlarge the image. Hope it helps a bit. John
  18. Take a look at this link. Explains the whole thing very well. http://www.cloudynights.com/documents/naglers.pdf John
  19. One very good book by Sir Patrick is Stargazing - Astronomy Without a Telescope It's an excellent introduction for the beginner who doesn't know where to start and hasn't even got a telescope or binoculars yet but wants to start learning their way around the night sky. http://www.amazon.co.uk/Stargazing-Astronomy-Telescope-Patrick-Moore/dp/0521794455 Besides new they have some used copies as well. John
  20. I agree, while the optics of the very best that was available decades ago is as good as the top end stuff nowadays, where they loose out big time is in comparison to the coatings that are available today. Although if you had those old optics brought up to date with some modern coatings? John
  21. Maybe it comes with a free telescope? :D John
  22. I've just taken a look at my Lunt 60. I can't detect any thread start myself, however it screws back in and locks really solid. No chance of it coming loose. I would guess that the screwthread inside the tube may be a little over-sized, and while it may have been good enough when brand new it's only taken a bit of un-threading and re-threading to damage the thread enough to cause your problem. I have come across a couple of other scopes (not Lunt) that have had issues with a large diameter screwthread in the OTA not being cut properly. John
  23. This guide is quite helpful. http://www.space.com/spacewatch/lc_pg_stars.html http://www.space.com/spacewatch/lc_pronunciation.html John
  24. Skywatcher manuals can be a bit useless as they leave out so much info. Fortunately the scopes are very good though. John
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