Takahashi FSQ-80FC

Takahashi FSQ-80FC
►preço de lançamento!

O FSQ-80FC apresenta objetiva de 5 elementos em 5 grupos.
►Dois elementos de fluorite são usados ​​no grupo tripleto frontal para suprimir a aberração cromática,
► o grupo dupleto traseiro atua como um sistema óptico de aplanamento de campo.
Este design avançado combina a excelente qualidade visual no eixo da série TOA com a característica de campo amplo e plano da série FSQ.

►FSQ stands for Flat-field Supreme Quintuplet:

Although the FSQ-80FC is designed as a high-performance astrograph, it also delivers outstanding visual performance.
Despite its relatively fast F5.6 optical system, the telescope achieves an on-axis visual Strehl ratio of 99.7%, exceeding even the TOA series flagship models in this metric.
Both chromatic aberration and spherical aberration are corrected to an extremely high level, producing an image quality that can effectively be described as aberration-free.
Even at very high magnifications, there is no detectable color fringing caused by the telescope optics, allowing high-contrast observation of bright objects such as the lunar limb and planets.
In addition, the optical system maintains excellent correction across the entire field of a 2-inch eyepiece, ensuring sharp and clean views from low to high magnifications.
To support visual use, the telescope provides 159 mm of back focal length from rear end of focuser, allowing infinity focus even when using the optional 50.8 mm diagonal mirror.