Vixen SD103SII Super ED Refractor EXOS-2 the bandwidth of H-alpha systems

the bandwidth of H-alpha systems can be reduced which provides much more contrast and detail on the Sun's surface

This telescope is an ideal Astronomical instrument for both teens and adults who have an interest in Astronomy and who are looking for a telescope that offers sharp and clear optics with some slightly more advanced features than those found in most beginner telescopes

Secondary mirror obstruction relative to diameter: 33

The result is a matte black tube interior

For astrophotography

Vixen SD103SII Super ED Refractor EXOS-2 the bandwidth of H-alpha systemsThe Vixen SD103SII OTA telescope is a new 103mm apochromatic refractor with high performance Super ED (SD) glass. The advantage of this SD refractor lies in its short length and light weight. The FPL53 glass used in the telescope reproduces an extremely clear and sharp image thanks to its exceptionally high reduction of residual chromatic aberration. The SD glass is designed to focus all rays violet, red, blue, yellow, and green very precisely onto