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Step 2Raw Materials
1. A wide-angle telescope lens.
I chose a 25mm KE (Kellner) lens from my collection. The wider the angle, the less vignetting you will have. The bigger the mm measurement, the wider the angle. There are three standard barrel sizes: .965, 1.25, and 2 inch. This is a 1.25. The KE lens is an inexpensive "starter" lens. They are about $30 new, but I have seen them for $10 or less on eBay.
2. A PVC coupler set: 1 1/4 to 1 1/2 inside diameter.
There are two pieces sold separately with a threaded base that joins them. You can find them in any hardware store in the plumbing dept for about $5 total. I chose these flared pieces so that I can add a DIY ring light to the front end surrounding the telescope eyepiece, but that's for a later project.
3. Screws.
Three small computer screws and four really small screws. My "really small screws" were from the inside of a kid's battery powered toothbrush that I took apart for the little electric motor.
I chose a 25mm KE (Kellner) lens from my collection. The wider the angle, the less vignetting you will have. The bigger the mm measurement, the wider the angle. There are three standard barrel sizes: .965, 1.25, and 2 inch. This is a 1.25. The KE lens is an inexpensive "starter" lens. They are about $30 new, but I have seen them for $10 or less on eBay.
2. A PVC coupler set: 1 1/4 to 1 1/2 inside diameter.
There are two pieces sold separately with a threaded base that joins them. You can find them in any hardware store in the plumbing dept for about $5 total. I chose these flared pieces so that I can add a DIY ring light to the front end surrounding the telescope eyepiece, but that's for a later project.
3. Screws.
Three small computer screws and four really small screws. My "really small screws" were from the inside of a kid's battery powered toothbrush that I took apart for the little electric motor.
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