Telescope Kit – DIY Four-Lens Refracting Telescope, Optics STEM Model
Build a working telescope from tubes and four lenses, then slide it out to focus on distant objects and see how lenses magnify.
Designed by Mematrix Lab
Description
See far away with a telescope you built
This kit builds a simple refracting telescope. Kids fit four lenses, the light stops and the end caps into the blue objective tube and the yellow eyepiece tube, then slide the eyepiece in and out to bring distant trees, buildings or the Moon into focus. Fully extended it is about 26 cm long and closes to about 17 cm.
Science it demonstrates
- Refraction: how light bends when it passes through a convex lens
- Focal length: why the eyepiece has to be moved to get a sharp image
- Objective and eyepiece: how one lens forms an image and the next magnifies it
- Stops and hoods: how blocking stray light makes the image clearer
What you'll do
- Fit the lenses and light stops into the inner tubes
- Assemble the objective tube with its front cap and lens hood
- Slide the eyepiece tube into the objective tube and fit the rear cap
- Look at objects near and far and slide the eyepiece to focus
Parts list
- Blue objective tube and yellow eyepiece tube
- Two inner tube halves, front cap, rear cap, lens hood and friction ring
- Four lenses (28, 16, 14 and 12 mm) and three light stops
Good to know
- Never look at the Sun through the telescope.
- The box carries the maker's logo with small Chinese characters.
- Contains small parts. Recommended for ages 8 and up, with adult guidance.
Specs and Docs
- Model
- EK-D012
- Length
- Approx. 26 cm extended, 17 cm closed
- Tube diameter
- Approx. 3 cm
- Lenses
- 4 (28, 16, 14 and 12 mm)
- Material
- ABS plastic
- Package size
- Approx. 22.5 × 16.5 × 5 cm
- Power
- None needed
- Suggested age
- 8+ with adult guidance
Shipping
Standard shipping: $9.00 for the first item, +$1.80 for each additional item. Free shipping on orders over $260.
We ship worldwide, by default with economical international post (UPU / China Post small packet) to keep shipping costs low. Orders are usually handed to the carrier within 2–5 business days, and economical international post then takes about 10–30 business days to arrive; these are estimates, not guarantees. Delivery time depends on the destination and on postal and customs handling. If you need your order by a certain date, email us before ordering: faster shipping can be arranged, with the extra cost charged at the carrier's actual rate. Items that contain batteries or magnets are marked on their product page and ship by a special carrier line; some countries and regions cannot be reached by that line, and if yours is one of them we refund the order in full.
Customs & duties
Import duties, taxes and customs requirements depend on the destination country, the shipping route and the local customs office, so we cannot say in advance whether any will apply to your parcel. Customs may hold a parcel, ask for more information, or ask for duties or taxes to be paid, even when the declared value is correct. If you have a question about your country, email us before ordering.
See our shipping & returns policy.