1.25" Prism

This is an extremely compact image correction prism that inserts into the bottom of any 1.25" eyepiece.  These screw directly into the bottom of your eyepiece where the filter would go.

 Very compact and disappears into your focuser.

 Works with eyepieces up to 25mm for $50. (ICP125W)

  It has a 3/4" in-travel requirement without Barlow assistance. Some scopes may fall short of focus. So focus your eyepieces and measure for the 3/4" of focus needed.

Makes this into this 

The field of view begins to be restricted when used with eyepieces greater than 21mm.  It also eliminates the need for a barlow-like adapter to add to the eyepiece's height.  Since it attaches directly to the bottom of the eyepiece, it fits into your focuser or barlow without any additional lenses or focuser height.  Perfect for refractors (when used without the diagonal) and reflectors that need the image corrected both right to left and up-side-down to right-side-up.  A great alternative to the bulky, expensive erecting prisms on the market.  It adds 0" height to the lens that it is inserted into.  Used mainly for terrestrial use.

(These will not work with the Meade ETX telescope.)