D150F750 Parabolic Reflector Spherical Primary Mirror for Astronomical Telescope

Key Benefits

• 150mm diameter collects sufficient light for detailed observation of deep-sky objects and planetary surfaces
• 750mm focal length delivers a fast f/5 focal ratio, suitable for wide-field and high-resolution imaging
• Parabolic shape minimizes spherical aberration, improving image sharpness across the field
• Aluminum coating with silica protective film maintains reflectivity and resists oxidation for 8-10 years in dry storage
• 18mm edge thickness supports secure mounting and alignment in telescope tube assemblies

Application Scenarios

• Rebuilding or upgrading a Newtonian telescope with a high-precision primary mirror
• Building a custom astronomical telescope for visual observation of galaxies, nebulae and planets
• Replacing a degraded or low-accuracy mirror in an existing Newtonian system
• Using in a research or educational setup where consistent optical performance is required
• Integrating into a telescope design that requires a fast f/5 system for wide-field imaging

Who It Is For

• Amateur astronomers building or upgrading Newtonian reflector telescopes
• Educational institutions teaching optics and telescope design
• DIY telescope builders sourcing precision optical components
• Astronomy clubs maintaining or enhancing their observing equipment
• Small-scale telescope manufacturers sourcing component-level mirrors

Problems It Solves

• A spherical mirror without parabolic correction causes spherical aberration, blurring the image at the edges
• Unprotected aluminum coatings degrade quickly in humid environments, reducing reflectivity
• Thin mirrors lack structural rigidity, making alignment difficult and prone to deformation
• Low-precision mirrors fail to deliver sharp focus across the full field, limiting observational detail
• Replacing a mirror with no known optical accuracy forces trial-and-error alignment and poor results

Technical Features

• Parabolic surface shape reduces spherical aberration for sharper focus
• Peak-to-valley surface accuracy of 1/6 to 1/8λ ensures high optical quality
• Aluminum coating with silica protective film prevents oxidation and maintains reflectivity
• 18mm edge thickness provides mechanical stability for mounting and handling
• Designed for Newtonian reflection telescope systems with a 150mm aperture

Specifications

Specifications are taken from the AMADA product data for this item. Confirm critical dimensions with us in writing before ordering.

Customization Options

• Available as a standalone mirror for integration into custom telescope builds
• Can be mounted on a mirror cell or holder upon request
• Surface accuracy can be specified within the 1/6-1/8λ range
• Coating type can be adjusted to other metals or films if required
• Edge thickness can be modified for specific mounting requirements

Comparison With Other Options

Use Guide

• Store the mirror in a dry, sealed container to preserve the protective film
• Handle the mirror only by the edges to avoid fingerprints on the optical surface
• Clean the surface only with compressed air or a soft brush; avoid contact with solvents
• Mount the mirror in a mirror cell with proper support to prevent stress on the edges
• Align the mirror in the telescope tube using a collimation tool after installation