Magnification is a division, not a number on a box · review
Celestron's X-Cel LX 12 mm: a six-element, fully multi-coated eyepiece with a 60-degree field, 16 mm of eye relief, blackened lens edges, a twist-up eyecup and a treaded rubber grip.
Celestron’s description states that all seven X-Cel LX eyepieces have 16 mm of eye relief. At 12 mm focal length, a Plössl would give about 8 mm. Sixteen is enough for most eyeglass wearers to see the whole field, and comfortable for everyone else.
The optics are a six-element, fully multi-coated design optimized for planetary viewing, with blackened lens edges and a 60-degree field. That shows about 1.4 times the sky of a 50-degree Plössl at the same power.
A pop-up eyeguard twists up or down; a treaded rubber grip around the barrel holds with gloves on. The body is black-anodized aluminum, threaded for 1.25-inch filters.
On November 7, 2026 it cost $93.00. A 12 mm Plössl costs a third of that. The difference buys the eye relief, the wider field and the build; for eyeglass wearers, the eye relief alone justifies it.
On November 7, 2026, Amazon.com sold it directly at $93.00. Celestron states a 2-year US warranty.
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 | 12 mm (0.47 in) |
|---|---|
| Apparent field | 60°, stated |
| Eye relief | 16 mm (0.63 in), stated for all seven X-Cel LX eyepieces |
| Barrel size | 1.25 in, threaded for filters |
| Optical design | Six elements, optimized for planetary viewing, stated |
| Coatings | Fully multi-coated · blackened lens edges |
| Weight | Not published in the listing text · Amazon's item data gives 181 g (6.4 oz) |
| Supplied accessories | Not published · twist-up rubber eyeguard · treaded rubber grip · black-anodized aluminum body |
| Amazon reference | B0048JF1JY |
| EAN | 0050234934244 |
A 12 mm Plössl gives about 8 mm, too close for most glasses. The X-Cel LX keeps 16 mm across the range, so an eyeglass wearer sees the whole field.
54x on a 650 mm reflector, 75x on a 900 mm refractor, 169x on an 8-inch Schmidt-Cassegrain.
Celestron's description begins to say the seven eyepieces are parfocal; the listing text is cut before it finishes. Plan for a small refocus between them.
8.4/ 10
A wider, better-built eyepiece than the Plössls beside it, with 16 mm of eye relief that makes it usable with glasses.
This model is listed on Amazon.com, at ≈ $93 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.
The eyepiece that stays on the planets, used with glasses or gloves on a cold night
Listed because the eyepiece or part names this scope.
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.
4 mm (0.16 in) Plössl · 50° apparent field · four elements · fully multi-coated · 1.25 in
Astromania's 4 mm Plössl: a four-element, fully multi-coated 1.25-inch eyepiece with a 50-degree field, an aluminum body, a filter thread and a fold-down rubber eyeguard.
Best for: High-power lunar and planetary work on a long-focus telescope, by an observer without glasses
≈ $16
8 mm (0.31 in) Plössl · 50° apparent field · four elements · fully multi-coated · 1.25 in
Astromania's 8 mm Plössl: a four-element, fully multi-coated 1.25-inch eyepiece with a 50-degree field, an aluminum body, a filter thread and a fold-down rubber eyeguard.
Best for: A step up from a supplied short eyepiece, for planets and the Moon
≈ $17
10 mm (0.39 in) Plössl · four lenses in two groups · fully multi-coated · 65 g (2.3 oz) · 37 × 37 × 45 mm
Bresser's 10 mm Plössl: four lenses in two groups, fully multi-coated, in a metal 1.25-inch housing with a filter thread, reversible eyecup and storage case, published at 65 g.
Best for: A dependable medium-power eyepiece for a case being built properly
≈ $98
