Telescope objectives are frequently applied in remote sensing, photography, and security surveillance applications. The performance of refracting telescopes is typically limited by chromatic aberrations that are inherently originated from the long focal length. In order to correct the induced chromatic aberrations, the most common methods are using cemented doublets or triplets that are composed of two or three optical materials with anomalous dispersion, such as and FK71. However, these carefully designed telescopes are usually expensive, troublesome to manufacture due to fragility, unstable in harsh environments, and unavailable in large apertures. McCarthy and Wynne proposed special optical layouts to eliminate longitudinal chromatic aberrations with normal glasses. Both systems consist of two or more widely spaced lens groups, which are not suitable for remote sensing and other narrow space occasions. Besides, these optical systems still suffer from lateral chromatic aberrations and other high-order monochromatic aberrations. Yang et al. introduced a four-group design, where most aberrations are carefully removed. Nevertheless, the design is still too long with easily more than seven components, increasing the manufacturing and assembly costs.