APO250VT F/8.8 – Discontinued

Price : $58,000

TEC APO250VT F/8.8 – TEC’s most powerful telescope. It is considered an observation class instrument. Weighing in at 50kg, the APO250VT F/8.8 can be transported to various observing stations, however TEC highly recommends that a permanent observing station be made for this telescope. It requires a large mount and specialized accessories; however, it will provide some of the best observing available to the consumer.

Clear aperture 250mm (10″)
Focal length 2200mm
Focal ratio 8.8
Resolution (theoretical) 0.5″
Tube diam. 254mm
Tube length (retracted) 2000mm
Tube length (extended) 2500mm
Tube weight 50 kg

Testing and Quality Assurance

TEC Telescopes go through rigorous testing to ensure top quality performance. Newtonian Rings are used throughout the glass production process and we then use an interferometer to correct any remaining imperfections. Every telescope is then tested vigorously to reach the most optimum Strehl ratio possible. Rest assured that your telescope has been optimized to be as optically perfect as possible. If the objective does not reach Yuri’s expectations, the telescope will not be shipped. As a strict policy, TEC will not release telescope test reports. 

While the objectives are fine-tuned under interferomerical control to meet the highest optical standards, cosmetic imperfections may exist in the objective and the tube assembly. Please rest assured that any imperfection in the telescope has been determined not to affect the optical performance.