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Showing results for tags '2'.
Found 6 results
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Celestron XLT 2" diagonal Includes 2" - 1.25" adapter SCT fit original packaging The diagonal is in excellent condition May swap for Baader Hyperion 68 degree 10mm eyepiece or Baader Aspheric eyepiece 31mm or 36mm - these must be in excellent condition with caps etc Price includes postage (1st class signed for) £110 £89 Lancashire area Cash payment or fees paid via Paypal.
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Hi all, I was looking for a 99% reflectivity 2" diagonal with a locking mechanism instead of thumbscrews. Thumbscrews eat through my gloves and are hard to use when fingers get cold. I saw the (very expensive) Baader Click Lock diagonal and the Williams Optics bright orange locking ring diagonal, which is cheaper but still pricey - and you either dig the orange or you don't. Finally I found the Antares 2" twist lock diagonal. I got two Antares twist lock diaginals delivered to the UK from Ontario Telescopes for about £160, so the same price as a single Explore Scientific Carbon Fibre diagonal and a lot less than a single Baader Click Lock diagonal. The Antares are solid, well machined diagonals and the mirrors look bright, smooth and clean. Light transmission seems just as good as my Explore Scientific 99% Carbon Fibre diagonals. Naturally the Antares are heavier diagonals. So what about the twist lock? It looks thin and insubstantial in the photos so this was a bit of a punt. In actuality, the twist lock is very solid and smooth. It turns very quickly and smoothly, so is much quicker and easier to operate than thumbscrews. It also holds very nicely indeed. I have some pricey 1Kg (2.2 lb) eyepieces, some 100 degree with Green lettering on, some Explore Sceintific, and I'm pleased to report all were held very well by the twist lock and I had no fear of them being dropped, even when viewing at the zenith. I suspect I could pick up my c9.25 by the eyepiece using one of these, though I haven't yet tried. Result: an excellent choice, money well spent. Might even get a third as I'm running three scopes simultaneously on my Ercole (though I never bother changing my little ED80 from a 21mm Ethos.- 3 replies
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Revelation 2 inch eyepiece - 30mm Revelation 2 inch eyepiece - 42mm Both eyepieces come with original boxes and end caps Both are in excellent condition £42 each or both for £75 Lancashire area Includes free UK postage (signed for) Cash payment or Paypal (fees paid).
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Hi, Am looking to replace my Ha filter, which had an accident and cracked. Anyone have one sitting around looking for a good home? Thanks Fakhri -
Hi! I am looking for a couple of filters to use as a version of a Hubble palette on my imaging setup (8" Orion Newtonian Astrograph, Orion Atlas GEM, Orion SSAG, Nikon D3200, and Baader MPCCII). I plan on getting a Hydrogen alpha filter, an oxygen 3 filter, and a sulfur 2. I plan on getting a ccd soon, I know a dedicated sensor array is going to turn out much better results, but first I want to milk every drop out of my nikon. Now, the coma corrector I use with the nikon only accepts two inch filters, unless I were to add an adapter that holds a 1.25 inch filter, such as the blue fireball 2" filter male thread to 1.25" female thread adapter found here: http://agenaastro.com/blue-fireball-m48-male-m28-5-female-adapter-m-01.html . My main question is, will a filter setup like this impede the amount of light reaching the sensor? I would like to buy Orion's 1.25 filter set [ http://www.telescope.com/Orion-125-Extra-Narrowband-Tri-color-CCD-Filter-Set/p/24609.uts ] 1.) because it contains all three of my choices, and 2.) because I know that the 1.25' filters can fit on any imager or telescope to which I currently have access. Let me know if this seems like a decent plan. Thanks a lot! Costas Soler
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Last part of my spring clear out - See anything you need just drop me a line and we can sort it out for you. Payment by Paypal or pick it up in Edinburgh in person and save the p&p. Cheers gang - 9x50 Unbranded metal RACI finder with Skywatcher compatible dovetail with rings - £35 + p&p - Unbranded Red Dot Finder (moulded plastic) £5 + p&p - 1.25” Celestron star diagonal £15 + p&p - 2” TS mirror star diagonal with brass compression rings £40 + p&p Extended slow motion control for RA/DEC on EQ mount (never used) £8 + p&p
