Choosing astronomy eyepieces & filters often comes down to range versus listed price: do you want three Plossl focal lengths and a stated 50-degree field of view, or two Orion eyepieces at a lower price? The right choice depends on whether you prioritize the 6mm, 12.5mm, and 20mm set, the 9mm and 25mm pairing, or the condition of the eyepieces.
Quick verdict
Choose the Telescope Eyepiece Set, 3-Piece Plossl 6/12.5/20mm if you want three focal-length options, a listed 50-degree field of view, and threaded support for standard astronomy filters. Choose the Orion Plossl 9mm & 25mm Telescope Eyepiece Set if those two focal lengths, fully multi-coated optics, Orion compatibility, and a used lot with original boxes match your priorities.
The listed prices span $39.00 to $57.58, an absolute difference of $18.58. That makes the choice less about a universal winner and more about selecting the set whose focal lengths and condition suit your telescope plans.
Compact comparison
| Comparison | 3-Piece Plossl 6/12.5/20mm | Orion Plossl 9mm & 25mm |
|---|---|---|
| Listed price | $57.58 | $39.00 |
| Listed focal lengths | 6mm, 12.5mm, 20mm | 9mm, 25mm |
| Optical details | Plossl; 50-degree field of view | Plossl; fully multi-coated |
| Format and condition | 1.25-inch eyepiece set; new | 1.25-inch eyepiece lot; used |
Where each product wins
Choose the 3-Piece Plossl set for more listed focal-length choices
This set is the clearer fit when you want the three focal lengths named in its title rather than a two-eyepiece pairing. Its description also specifically discusses broad-field lunar observations, medium-sized star clusters, cloudy nebulas, and deep-sky targets. Threading for standard astronomy filters and the fold-down rubber eyeguard add useful practical details, while the description mentions an eye guard intended to bring convenience to glasses wearers.
Choose the Orion set for a defined two-eyepiece setup
The Orion lot has a straightforward 9mm and 25mm combination, fully multi-coated optics, and two original boxes. Its listed Orion compatibility gives it a specific fit for shoppers seeking that pairing. The trade-off is condition: it is listed as used, and its description says the lenses may show marks, dust, scratches, or other imperfections.
Product notes
Telescope Eyepiece Set, 3-Piece Plossl 6/12.5/20mm
At $57.58, the main reason to choose this set is the three listed Plossl focal lengths: 6mm, 12.5mm, and 20mm. The set also explicitly lists a 50-degree field of view, and its description connects it with lunar viewing, medium-sized star clusters, cloudy nebulas, and other deep-sky targets. Threading for standard astronomy filters is another concrete feature, as are the fold-down rubber eyeguard and glasses-wearer-friendly eye guard described for the set. The limitation is the price: it is $18.58 more than the Orion set. If the three-piece selection and stated viewing applications matter most, that difference may be worthwhile, but the listed specifications do not establish an overall optical winner.
Orion Plossl 9mm & 25mm Telescope Eyepiece Set
The Orion set makes sense for a shopper who specifically wants 9mm and 25mm Plossl eyepieces in a 1.25-inch format. It also lists fully multi-coated optics, Orion compatibility, and two original boxes, giving the lot a clearly defined configuration. At $39.00, its listed price is the lower of the two choices. The important limitation is its used condition. The description cautions that the lenses may have marks, dust, scratches, or other imperfections, so that condition is part of the buying decision rather than a minor footnote. This lot is best matched to someone comfortable with its stated wear and focused on the named two-eyepiece combination.
Final choice by use case
- For three listed focal lengths: Choose the Telescope Eyepiece Set, 3-Piece Plossl 6/12.5/20mm.
- For the named 9mm and 25mm pairing: Choose the Orion Plossl set.
- For a new condition listing: Choose the three-piece Plossl set.
- For fully multi-coated optics and Orion compatibility: Choose the Orion set, provided its used condition suits you.
- For filter-oriented observing details: Choose the three-piece set because its description specifically mentions threading for standard astronomy filters.
Both are Plossl telescope eyepiece sets in a 1.25-inch format. The practical dividing lines are the listed focal-length combinations, the three-piece versus two-piece configuration, the 50-degree field-of-view detail on the first set, and the new versus used condition.
