Takahashi CCA-250 Cassegrain Telescope

While the CCA-250 is engineered primarily as a high-end astrograph for deep-sky imaging, it does include a 1.25-inch ocular adapter. You can use it for visual observation, though its design and focal length are optimized for capturing wide, flat-field images rather than casual stargazing.

The carbon fiber construction is critical for thermal stability. It minimizes tube expansion and contraction as temperatures shift throughout the night, which helps maintain precise focus during long-exposure photography.

This system allows you to control the telescope's focus remotely via your computer. By integrating with standard ASCOM software, it enables precise, automated focus adjustments, which is essential for maintaining sharp images without needing to touch the telescope manually.

Yes, the system is designed for prime focus operation at f/5.0, but it offers versatility through optional focal reducers. These allow you to adjust the focal ratio to suit different imaging requirements and field-of-view preferences.

No, the CCA-250 is sold as an optical tube assembly (OTA) only. You will need to provide your own high-capacity equatorial mount and tripod capable of supporting the weight and precision requirements of a 250mm aperture instrument.

The 88 mm image circle provides a remarkably flat field of view, which is vital for modern large-format CCD and CMOS sensors. It ensures that your stars remain sharp and undistorted from the center all the way to the corners of your frame.