Lunt 1.25" 45° Diagonal

• True erect-image viewing: delivers a left-right correct, up-down correct image—perfect for terrestrial use where orientation matters

• Comfortable 45° viewing angle reduces neck strain for long daytime sessions like birding, landscape and architecture viewing

• High-quality full-size Amici prism provides a fully illuminated field to help prevent vignetting and keep edges bright

• Produces sharp, crisp images—a clean, contrasty view for spotting fine details in daylight targets

• Versatile compatibility with refractors and Cassegrain/Schmidt-Cassegrain telescopes that accept 1.25" accessories

• A great upgrade from standard 90° star diagonals when you want correct orientation and comfortable terrestrial ergonomics

• Robust, observatory-ready fit-and-finish that pairs smoothly with common 1.25" eyepieces

Specifications

• Format: 1.25" erect-image diagonal

• Viewing Angle: 45° for comfortable terrestrial observing

• Image Orientation: Left-right correct, up-down correct

• Optics: Full-size Amici prism for a fully illuminated field and minimal vignetting

• Recommended Use: Terrestrial (birding, building/harbor viewing, landscape); also useful for casual daytime astronomy

• Telescope Compatibility: Refractors and Cassegrain/SCT with 1.25" focusers or visual backs

What’s in the Box?

• Lunt 1.25" 45° Erect-Image Diagonal

• Basic usage notes for best daytime performance