Tele Vue 24mm Delos Astrophotography The SQA55 tube includes four

The SQA55 tube includes four quick-release bases

Optical Performance

A tension adjustment set screw is positioned under the focuser and a thumb screw allows for locking the focuser when engaged in astrophotography

enabling easy personalization

Tele Vue 24mm Delos Astrophotography The SQA55 tube includes fourThe Delos eyepiece series was conceived as a narrower field, longer eye relief Ethos. Reducing the field to 72 allowed freedom to increase eye relief to 20 mm while controlling pupil aberrations, all without making the eyepiece too large. With Ethos performance standards as benchmarks, the Delos design achieves full field sharpness, virtually perfect (theta) distortion mapping, and color neutrality. Image contrast is maximized utilizing glass matched