Altair Astro 2 Inch SCT Dielectric Diagonal

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Order in the next 22hrs 5mins for delivery on Wednesday, 23 August

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£69.99

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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 SCT 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 SCT 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 2 inch SCT Diagonal is threaded for filters, and it has an internal blackened thread to stop stray light reflection, increasing image contrast.

A precision machined low profile 2 to 1.25 inch eyepiece adapter with brass compression ring is also included, which will 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 Cassegrain 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 Fits to rear-cell of SCT telescopes
Eyepiece Format 2 inch, but supplier with a 2 to 1.25 inch Adaptor
Reflectivity (%) 99
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Product Code: 1543256-wex Manufacturers Part Number: DIAG-SCT Got a question? Get it answered...