MTM Scientific, Inc... How to Build Telescope Eyepieces
Our TELESCOPE EYEPIECE EXPERIMENTER KIT makes it quick and easy to build a symmetrical Ramsden telescope eyepiece and to explore other eyepiece designs. This Experimenter Kit contains everything you need to get started: an Eyepiece Body, Assorted Lenses, Mounting Washers and Instructions. The 1.25" Eyepiece Body is carefully machined from black Delrin plastic. The Mounting Washers are a flexible and reusable system for mounting lenses inside the Eyepiece Body. This system allows you to easily mount and space lenses for experimenting. The Lens Assortment includes 2 plano-convex lenses for building a 37 mm FL symmetrical Ramsden eyepiece. Also included is a packet of 10 surplus lenses (contents vary), and an optical magnifier optic that can also be mounted and used as an eyepiece. The instructions get you started, and include a detailed resource list of design information and part sources for more complex eyepiece designs.
NOTE: THE KIT IS SOLD OUT... BUT THE FREE PLANS WITH HOW TO INFORMATION IS AVAILABLE AS A FREE DOWNLOADAlthough we have sold out of the original Eyepiece Experimenter Kit we have posted the instructions from the kit here for free. This PDF file contains instructions for building and experimenting with simple telescope eyepieces.
Free Download: Eyepiece Experimenter Kit Instructions