A spread of magnifications, or four that overlap · review
CelticBird's 13-piece kit: five Plössls from 40 to 6 mm, a 2x Barlow with T2 threads, five color filters, a polarizing filter and a Moon filter, in a foam-lined metal case.
Five Plössls (40, 20, 12.5, 8 and 6 mm), a 2x Barlow, five color filters (red, blue, orange, green and yellow), a polarizing filter and a Moon filter, in a sturdy foam-lined metal case with room for more.
On a 700 mm refractor: about 18x, 35x, 56x, 88x and 117x, then 35x to 233x through the Barlow. The 20 mm repeats a common supplied eyepiece.
In a 1.25-inch barrel, a 40 mm Plössl has to narrow its apparent field to fit through the barrel, so it shows about the same patch of sky as a 32 mm at lower power. It is a finder eyepiece more than a wide-field one.
T2 threads (M42 × 0.75). With a T-ring, it works as a prime-focus adapter or a tele-extender for a DSLR.
The kit’s distinctive filter. Alone it dims the Moon by a fixed amount; paired with a second polarizer it becomes adjustable.
On November 7, 2026, Amazon.com listed it at about $150 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 | 40, 20, 12.5, 8 and 6 mm, plus a 2x Barlow |
|---|---|
| Duplication risk | 20 mm is a common supplied eyepiece |
| Optical designs | Plössl · element count and field not published |
| Included Barlow | 2x with T2 (M42 × 0.75) threads for a T-ring · usable as a prime-focus T-adapter or tele-extender |
| Filters | Red, blue, orange, green and yellow · polarizing filter · Moon filter |
| Barrel size | 1.25 in |
| Case | Sturdy metal case, foam-lined, with extra space |
| Amazon reference | B0B42CC9J9 |
| EAN | 0730637250676 |
A single polarizer dims the Moon by a fixed amount; two polarizers stacked and rotated give variable dimming. CelticBird includes one, which works as a neutral Moon filter.
A 1.25-inch barrel limits the field stop to about 27 mm. A 32 mm Plössl already reaches it; a 40 mm has to narrow its apparent field to fit, so the true field is about the same with a smaller, more magnified-looking view.
On a 700 mm refractor: about 18x, 35x, 56x, 88x and 117x, and twice each with the Barlow.
This model is listed on Amazon.com, at ≈ $150 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.
A first telescope being equipped in one purchase, where the polarizer and the T-thread are the extras that matter
Amazon reports what buyers took in the month before this page was last checked: at least 50.
The figure is a floor, rounded by Amazon, and read through Keepa — it says what buyers picked, not what a maker claims.
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
