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William Optics Pleiades 181 Septuplet APO Refractor$14,818.00
The optical performance of the Pleiades 181's advanced optics sets it apart from other optical tubes of similar size. Its 7-element, temperature-compensated lens system is specifically engineered to minimize thermal distortion, ensuring that image clarity remains stable even as ...The optical performance of the Pleiades 181's advanced optics sets it apart from other optical tubes of similar size. Its 7-element, temperature-compensated lens system is specifically engineered to minimize thermal distortion, ensuring that image clarity remains stable even as temperatures fluctuate during the imaging session.
This design effectively prevents blurring and focus shifts that typically occur during long exposures.