Zoom eyepieces

Baader Planetarium Hyperion Zoom Mark IV vs Celestron 8–24 mm zoom eyepiece (93230)

A system zoom with click stops, or a simple 8-24 mm at a fraction of the price?

In brief

Short answer: The Baader adds click stops, a 2-inch barrel, a camera thread and a stated 68° field; the Celestron publishes its field range and eye relief and costs a fraction as much.
On published specs: Baader Planetarium Hyperion Zoom Mark IV leads 4 lines, Celestron 8–24 mm zoom eyepiece (93230) 1, out of 6; the rest are ties.
Choose the Hyperion Zoom Mark IV: The system zoom. Click stops make each setting repeatable and suit binoviewers; two barrels fit any focuser; the M43 thread takes camera adapters. It was about $396 on November 7, 2026, from a third-party seller.
Choose the 8–24 mm zoom eyepiece (93230): The simple one. A 40 to 60-degree field and 15 to 18 mm of eye relief, both published, in a 1.25-inch zoom with a 2-year warranty. Amazon.com had no seller offering it when checked; Keepa recorded offers around $110 over the previous six months.

Both cover 8 to 24 mm in a single eyepiece. The Baader is a system product with five click stops, 1.25-inch and 2-inch barrels and an M43 camera thread. The Celestron is a plain 1.25-inch zoom that publishes the two figures a zoom is judged on: its field across the range and its eye relief.

Baader Hyperion Universal Mark IV 8-24 mm zoom eyepiece

Baader Planetarium Hyperion Zoom Mark IV

7.8/10

Wins 4 of 6

Check price

≈ $396

Celestron 93230 8-24 mm zoom eyepiece in black and silver

Celestron 8–24 mm zoom eyepiece (93230)

7.2/10

Wins 1 of 6

Check price

Aperture against aperture

Compared on	Hyperion Zoom Mark IV	8–24 mm zoom eyepiece (93230)
Focal length range	8 to 24 mm	8 to 24 mm
Apparent field at both ends	68° widefield, stated (end figures not given)	40° to 60°, stated
Eye relief	Long eye relief, stated · no figure	15 to 18 mm, stated
Stops	Five: 8, 12, 16, 20 and 24 mm	Not published by the maker.
Barrel size	1.25 in and 2 in barrels included	1.25 in
Coatings	Phantom Coating Group multi-coatings · flat-field design	Not published in the listing.
Listed on amazon.com	Yes	Yes

A tick means one listing published something the other did not, or published a better figure. It does not mean the product is better, and the column is not a score out of anything: a maker who says less loses lines here without losing a comparison. The two verdicts below are where the page is settled.

Which of the two, for which sky

Buy the Baader Planetarium Hyperion Zoom Mark IV

The system zoom. Click stops make each setting repeatable and suit binoviewers; two barrels fit any focuser; the M43 thread takes camera adapters. It was about $396 on November 7, 2026, from a third-party seller.

Buy the Celestron 8–24 mm zoom eyepiece (93230)

The simple one. A 40 to 60-degree field and 15 to 18 mm of eye relief, both published, in a 1.25-inch zoom with a 2-year warranty. Amazon.com had no seller offering it when checked; Keepa recorded offers around $110 over the previous six months.

What observers ask about these two

Why do click stops matter?

They let a focal length be set exactly and found again by feel in the dark, and they let two zooms in a binoviewer be set to the same value.

Is 68 degrees really wider than 40 to 60?

Baader states 68° without saying at which end. Celestron states the range honestly. On paper they are not directly comparable.

Which suits glasses?

The Celestron publishes 15 to 18 mm of eye relief, enough for most glasses. Baader says long eye relief without a figure.

Each one, in full detail

Zoom eyepieces

Baader Planetarium Hyperion Zoom Mark IV

8–24 mm with click stops at 8, 12, 16, 20, 24 mm · 68° widefield · 1.25 in and 2 in barrels · M43 thread · Phantom Group coatings

Baader's Hyperion Universal Zoom Mark IV: a 68-degree widefield 8-24 mm zoom with click stops at five focal lengths, 1.25-inch and 2-inch barrels, Phantom Coating Group multi-coatings, three eyecups and an M43 photo thread.

Best for: An owner of 1.25 in and 2 in focusers, or a binoviewer, who also photographs through the eyepiece

7.8/10

≈ $396

Check price on Amazon Read the review: Baader Planetarium Hyperion Zoom Mark IV
Zoom eyepieces

Celestron 8–24 mm zoom eyepiece (93230)

8–24 mm zoom · 40° to 60° apparent field · 15–18 mm eye relief · 1.25 in · threaded case · 2-year warranty

Celestron's 93230 8-24 mm zoom: a 1.25-inch eyepiece with a 40 to 60-degree field, 15 to 18 mm of eye relief, a rubberized barrel that turns to zoom and a threaded plastic case, with no offer on Amazon.com when checked.

Best for: Observers who want to stop swapping eyepieces in the cold

7.2/10

Check price on Amazon Read the review: Celestron 8–24 mm zoom eyepiece (93230)

Any figure written into the body of this page was true on the day it was written. The amount shown next to each instrument is requested from the retailer as the page loads, and it is that amount, not the text, that stands.