astro.n-minus

Accessory

Blue Fireball 2" Spacer Ring with 0.25" Extension S-2A

Key specifications

Accessory typeAdapter
Weight0.006 kg
Path length6.4 mm

All specifications

InterfaceM48x0.75 female to M48x0.75 male

About

2" extension ring with M48x0.75 filter threads (female one side, male the other) providing 0.25" (6.4 mm) of spacing, for parfocalising eyepieces or changing a reducer's factor. Discontinued.

Where to buy

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