Bower 10mm Ultima Edge 1.25" Eyepiece

10 mm Ultima Edge eyepiece

This 10 mm flat-field eyepiece is built for astronomers who want sharp lunar and planetary views through a standard 1.25" focuser. It uses a five-element, fully multi-coated optical design to deliver a 60-degree apparent field with edge-to-edge clarity. The aluminium housing has a black anodised finish and a moulded rubber grip ring for secure handling. The barrel is internally threaded to accept 1.25" filters and star diagonals.

Installing the eyepiece

Insert the 1.25" barrel into any compatible focuser or star diagonal and secure the locking screw; the rubber grip makes alignment easy even with gloves on. The internal filter threads accept standard 1.25" accessories without extra adapters. Generous eye relief allows comfortable viewing for spectacle wearers, though the fixed 10 mm focal length means magnification cannot be adjusted without swapping eyepieces.

Ideal for high-power lunar and planetary work

Observers who prioritise a flat, high-contrast field at 10 mm will benefit from the Ultima Edge design. Buyers who need variable magnification, wider apparent fields or longer focal lengths for deep-sky objects should consider other models. The 1.25" barrel limits use to telescopes that accept that size, so owners of 2" focusers would need an adapter.