AstroZap Focusing Cap for ETX 90 - AZ-402
Category: Telescope Accessories
AstroZap Focusing Cap for ETX 90
When you want help focusing an image during a CCD or DSLR sessions turn the center knob to the "Open" position and reveal a trio of off-axis masks. This position allows the focusing cap to operate like a Bahtinov mask. The Astrozap Focus Cap doesn't stop there. Rotate the knob again to place the cap in the "Closed" position and take dark frames or use it as a dust cap.
Made from lightweight aluminum and powder-coated black, this Astrozap Focusing Cap is both strong and aesthetically pleasing. For installation: Three thumbscrews hold the Focusing Cap firmly in place.
The AstroZap Focusing Cap for ETX 90 will fit 90mm-100mm optical tubes.
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Standard Shipping: Handling (business days) 0–1; Transit (business days) 7–15.
Express Shipping: Handling (business days) 0–1; Transit (business days) 7–15.
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Standard Shipping · United States: $0.00
Express Shipping · United States: $3.99
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United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.
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