A spread of magnifications, or four that overlap · review
CelticBird's six-piece 0.965-inch kit: 4, 6, 12.5 and 20 mm eyepieces, a Barlow and a 90° diagonal, all in the older 0.965-inch barrel size.
Everything in this kit is 0.965-inch (24.5 mm): four eyepieces of 4, 6, 12.5 and 20 mm, a Barlow and a 90-degree diagonal. That older size was common on department-store telescopes; modern telescopes take 1.25-inch eyepieces, which this kit will not fit. See eyepiece barrel diameters.
The title says a 3x Barlow; the bullet describing it says 2x. CelticBird does not reconcile them. Check the marking on the part when it arrives.
It brings an older telescope back into use. On a 700 mm refractor: 35x, 56x, 117x and 175x, more with the Barlow, though the 4 mm already exceeds what a small aperture can use.
Optical design, coatings and field. At this price, expect simple designs.
On November 7, 2026, Amazon.com listed it at about $41 from a third-party seller.
Figures as Keepa reported them on the day this page was last updated. Stock and pricing shift without warning.
Prices quoted in this text were read on November 7, 2026. The live price is at the top of the page.
Same aisle, closest price — what the same spend else shows.
| Focal length spread | 4, 6, 12.5 and 20 mm, plus a Barlow |
|---|---|
| Duplication risk | High on a 0.965 in telescope, which usually ships with similar focal lengths |
| Optical designs | Not published by the maker. |
| Included Barlow | 2x in the feature bullets, 3x in the title; the maker does not reconcile the two |
| Filters | None |
| Barrel size | 0.965 in (24.5 mm) throughout · does not fit 1.25 in focusers |
| Case | Not published by the maker · 90° diagonal included |
| Amazon reference | B0B5L4NQG2 |
| EAN | 0730637251611 |
Measure the outside diameter of an eyepiece barrel: 24.5 mm (0.965 in) or 31.75 mm (1.25 in). Department-store telescopes of past decades often used 0.965; nearly everything sold today uses 1.25. See [eyepiece barrel diameters](/standards/eyepiece-barrel-diameters/).
The listing says both: 3x in the title, 2x in the bullet that describes it. Expect one or the other, and check the marking on the part.
If the telescope has a 0.965-inch focuser, a 0.965-to-1.25-inch hybrid diagonal opens it to modern eyepieces. If not, this kit keeps it working.
This model is listed on Amazon.com, at ≈ $41 at the last reading. Listed is not the same as in stock: availability changes daily, and the buy box shows the live price.
Details checked on November 7, 2026.
An older 0.965-inch telescope whose own eyepieces are lost or broken
Listed because the eyepiece or part names this scope.
Specifications: the manufacturer sheet for telescopes and observing optics and the matching Amazon product page. Prices and availability: Keepa. Every figure on this page names its source.
Three Plössls 4/10/25 mm · 2x Barlow with T-thread · 4 elements · 50° apparent field · fully multi-coated
Three 1.25-inch Plössls of 4, 10 and 25 mm with a 2x Barlow: four-element, 50-degree, fully multi-coated, internally blackened metal eyepieces with filter threads, and a Barlow that takes a camera T-ring.
Best for: Replacing lost or poor supplied eyepieces, where the 4 mm and the Barlow add the high powers
≈ $48
Three Plössls 6/12.5/20 mm · 4 elements · 50° apparent field · multi-coated · fold-down eyecups
Three 1.25-inch Plössls of 6, 12.5 and 20 mm: four-element, 50-degree, multi-coated eyepieces with filter threads, fold-down eyecups for glasses and dust caps.
Best for: An eyeglass wearer buying three eyepieces, where the eyecups matter more than a filter
≈ $36
Five Plössls 32/17/13/8/6 mm · 52° apparent field · 2x Barlow · Moon and planetary filters · metal case
Celestron's Eyepiece, Barlow and Filter Kit: five four-element, fully multi-coated Plössls of 32, 17, 13, 8 and 6 mm with a 52-degree field, a 2x Barlow, a Moon filter and planetary filters in a foam-lined metal case.
Best for: A telescope worth equipping properly in one purchase, where the 32 mm low-power end matters
≈ $220
