The Astro-Physics 92mm Stowaway


The A-P Stowaway is a 92mm air-spaced triplet apochromat designed by Roland Christen using Hoya FCD100 glass. According to Roland, "the lens has broad band multi-coatings on all surfaces. Optimization was chosen for the polychromatic Strehl ratio to be above 90% for the entire visual spectrum with a peak value of 99.8% at the visual peak. The result is unprecedented color correction of +/- 0.003% focus variation from 656 nm to 436 nm (c to g wavelengths)."

The robust and silky smooth 2.5" FeatherTouch 9:1 focuser.

Numerous light baffles to improve contrast, reduce glare and reflections.

The Stowaway OTA, rings, Vixen dovetail bar and Pelican Air 1525 case.

All text and photos are © Copyright Chris Cook

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© Chris Cook 2019