6\" 150mm f9.3 Short Tube Telescope Spherical Mirror 1-3/8\" Secondary F=1400 BLEM For Sale
When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
6\" 150mm f9.3 Short Tube Telescope Spherical Mirror 1-3/8\" Secondary F=1400 BLEM:
$39.95
Click to Enlarge
Click to Enlarge
150mm 6\" F9.3 Short Tube Spherical Mirror Kit with BARLOW LENS - Great Value!FREE USA SHIPPING
NOTE: Spherical mirrors can be pulled into a parabolic curve by a method known asflexing. The result is often better than a polished parabolic mirror if done properly as parabolic mirror generally have a rough surface and spherical mirrors generally have a smooth surface. Here is a link about mirror flexing to answer any questions about it: http://www.skyandtelescope.com/wp-content/uploads/Adler-MirrorFlex.pdf
Need a replacement mirror or building your own telescope? This is what you get:
6\" f/3.8 spherical mirror, coated and ready to mount (holder is not included).
1-3/8\" minor axis secondary flat, also coated - spider and holder are not included.And you get a barlow lens to put into your focuser drawtube.
You end up with a short tube (about 2 feet long) 6\" scope tube with an effective focal ratio of 9.3 or 1400MM.you must use the barlow lens in the focuser to get this focal length and a good image, so this kit is not for first time telescope makers.But if you want a short 6\" tube with the benefits of a long 6\" tube and a super low cost, grab one of these kits!
We have finderscopes, focusers and eyepieces at great prices on our ebay store, Telescope Warehouse.
We bought these directly from our supplier and are passing the savings onto our eBay customers - this is a great price for new optics! Also great for experimenters - make your own telescope! We have focusers and eyepieces in our store, check us out!
Primary mirror has a small chip near the edge (approx 7mm x 8mm) and some scratches but is perfectly usable. Please check out the pictures to see what you will be getting. Please contact us if you have any questions.
Check out our ebay store for a huge selection of telescopes and accessories!
Buy from a store you can trust, we ship promptly - usually the same day!
Thanks!
inkfrog terapeak
inkFrog Analytics