Coronado SolarMax 40 with Coronado 25mm Eyepiece & Case (Pre-owned)
Regular price
$749.00 CAD
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In Excellent Condition
The Coronado SolarMax 40 is a specialized 40mm hydrogen-alpha (Hα) solar telescope and filter system designed exclusively for viewing and imaging the sun's chromosphere, prominences, filaments, and active regions
Key Specifications & Features
Aperture: 40 mm
Focal Length: 400 mm (f/10)
Bandpass: Typically 0.7Å (single-stack) or tunable down to 0.5Å with a double-stack configuration.
Tuning: Uses a T-Max tilt-tuner to adjust the etalon for peak contrast and to shift for Doppler events like flares or coronal mass ejections (CMEs).
Blocking Filter: Usually includes a BF-10 blocking filter inside a 1.25-inch right-angle diagonal.
Finderscope: Equipped with a safe, shadow-projection style Sol Ranger solar finderscope.
Status: The original SolarMax 40 and SolarMax II 40 variants are generally discontinued, though components or double-stack etalons (such as the SME-40) pop up on the used market.