Astromania 1.25 Inch Telescope Diagonal with Amici Erecting Prism - 90° Fully-Coated Star Diagonal for Upright & Clear Astronomical Viewing, Metal/Plastic Construction, Enhanced Optical Transparency

90° Telescope Diagonal for Comfortable Viewing: Experience effortless astronomical observation with Telescope Diagonal Mirror featuring 90° angle design; Maintain an upright & comfortable posture, whether observing planets or terrestrial landscapes

Erect Image Diagonal with Amici Prism Technology: The integrated Amici Prism Diagonal  BK7 optical glass corrects image orientation; delivering upright & non-reversed views—perfect for birdwatching and deep-sky exploration

Premium Fully-Coated Diagonal for Optimal Clarity: Multi-layer dielectric coatings on prisms and lenses ensure 89% reflection for a bright image; surpassing standard mirrors in brightness and sharpness for Star Diagonal applications

Resitant 1.25 Inch Telescope Diagonal Build: Combining an premium-grade aluminum barrel and impact-resistant ABS housing, this diagonal withstands extreme temperatures from -20°C to 60°C while fitting all 1.25" focusers

Enhanced Compatibility & Versatility: Utilize the M28.5×0.6mm filter thread to attach 1.25 inch moon filters or nebula filters, expanding your telescope diagonal’s functionality across celestial and terrestrial targets

Control Engineering for Crisp Imagery: Internal glare-eliminating threads and dual rubber dust caps minimize glare and debris; ensuring to improve brightness of image and reduce dark edge formed

Sophisticated Aesthetics & Ergonomics: The high-gloss finish resists fingerprints and scratches, while the compact lightweight design ensures portability for field astronomy