Product Code: 1543257

Altair Astro 2 Inch Dielectric Diagonal

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Whether you're looking to build a telescope system from scratch, or wish to upgrade your "kit" Star Diagonal, the Altair Astro 2 inch Dielectric Diagonal offers 99% reflectivity due to its multi-layer dielectric coatings, and extreme durability thanks to its CNC machined aluminium casing. The barrel is threaded for attaching additional filters, and it has an internal blackened thread to stop stray light reflection, increasing image contrast. It has a non-marring brass compression ring to prevent damage to your eyepieces and comes supplied with two protective dust caps in foam-lined presentation box.

Altair Astro 2 Inch Dielectric Diagonal:

The multi-layer dielectric coatings on these diagonals are so incredibly reflective, it's difficult to see the actual mirror surface when looking into it.

The coatings are also more durable than aluminium coatings and because they do not oxidise, and are extremely scratch resistant, they are easier to clean.

This push-fit version will fit telescopes with a 2 inch push fit aperture in the focuser and is threaded for filters. It has an internal blackened thread to stop stray light reflection, increasing image contrast.

A precision machined low profile 1.25 to 2 inch eyepiece adapter with brass compression ring is also included, designed not mar your eyepiece barrels.

The low profile adapter has a corresponding slot machined into the diagonal body to lower it even further. This achieves as much "infocus" as possible for users who would like the focal length of their telescope to stay as close to design parameters as possible.

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Product Specification

Angle 90 degree
Coatings Dielectric multi-coated
Eyepiece Barrel 2 (50.87 mm)
Eyepiece Format 2 inch, but supplier with 1.25 to 2 inch Adaptor
Reflectivity (%) 99
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Pre-Order Awaiting Stock In Stock Low Stock Special Order Usually available in 5-7 days Discontinued Used Call To Order 48 Hour Delivery Awaiting Stock
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Product Code: 1543257-wex Manufacturers Part Number: DIAG-2IN Got a question? Get it answered...