SVBONY SV154 15mm 70° Super Wide Angle Eyepiece (1.25″)

Product Overview

The SVBONY SV154 15 mm is a 1.25″ super wide angle eyepiece with a 70° apparent field of view. Its 5 elements in 4 groups are fully multi-coated, with blackened lens edges and anti-reflection threads inside the barrel. It has 13 mm of eye relief, an 18.8 mm field stop, a twist-up eyecup and a barrel safety recess, and the barrel is threaded for standard 1.25″ filters (M28.5 x 0.6).

Who It's For

This is a good match if you want a medium-power eyepiece with a wider view than a standard Plössl, for framing star clusters, the Moon and larger planetary nebulae, or for following planets on a mount without tracking.

Key Features & Design

• 70° apparent field: a wide, immersive view at medium power.
• 13 mm eye relief with a twist-up eyecup.
• 5 elements / 4 groups, fully multi-coated: high-index glass for sharp, contrasty views.
• Blackened lens edges and threaded interior: controls stray light for contrast.
• Safety recess on the barrel: reduces the chance of the eyepiece slipping out of a focuser or diagonal.

Optical Design

With a 15 mm focal length and an 18.8 mm field stop, the SV154 delivers a 70° apparent field. Magnification is your telescope's focal length divided by 15; on a 900 mm telescope that is 60x. The fully multi-coated 5-element, 4-group layout keeps the view bright, and the blackened edges and threaded barrel interior control internal reflections.

Recommended Uses

• Lunar and planetary observing at medium power.
• Open and globular clusters framed with surrounding star field.
• General-purpose observing as a mid-range eyepiece in a 1.25″ set.

Compatibility and Accessory Notes

• Barrel: 1.25″, fits all standard 1.25″ focusers and diagonals.
• Filter thread: M28.5 x 0.6 for standard 1.25″ filters.
• With a Barlow: SVBONY also offers the SV154 with a 2x or 3x Barlow as bundle styles; ask us if you would like one.

Good to Know Before You Order

• Eye relief: 13 mm. Some eyeglass wearers prefer longer; the twist-up eyecup can be lowered for glasses.
• Listing: this is the eyepiece on its own.

Frequently Asked Questions

Is it difficult to set up?

No. It slides into any 1.25″ focuser or diagonal and is held by the usual set screw or compression ring.

What magnification will I get?

Divide your telescope's focal length by 15. A 650 mm telescope gives about 43x; a 1250 mm telescope about 83x.

Can I use filters with it?

Yes. The barrel takes standard 1.25″ filters.

Bottom Line

In short: a 15 mm, 70° 1.25″ eyepiece with 13 mm eye relief and fully multi-coated optics that gives a wide medium-power view in any 1.25″ focuser.