8" 203mm f/3.9 Spherical Mirror with 2-3/4" Secondary F=800mm
203mm 8" Spherical Mirror Kit - Great Value!
NOTE: Spherical mirrors can be pulled into a parabolic curve by a method known as flexing. 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:8" f/3.9 spherical mirror, focal length = 800mm, coated and ready to mount (holder is not included).
2-3/4" minor axis secondary flat, also coated - spider and holder are not included.
This is a perfect replacement mirror set - 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!
- Item #: 8" f/3.9 Mirror Kit F=800mm
- Condition: New