4.5" 114mm f/8 Long Tube Spherical mirror 1" secondary F=900mm

114mm 4.5 inch Long Tube Spherical Mirror Kit

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:

4.5" f/8 spherical mirror, focal length = 900mm, coated and ready to mount (holder is not included).
1 " minor axis secondary flat, also coated - spider is 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!

4.5" 114mm f/8 Long Tube Spherical mirror 1" secondary F=900mm
  • Item #: 114mm 4.5" mirror kit f/8 F=900m
  • Condition: New
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Price $29.95