WILLIAM OPTICS 1.25" 90° ERECTING PRISM Chroma - 4 A peak

- 4 A peak

Short locking ring with knurled outer part and internal M42 female thread

75 Optical thickness 10mm SKU QHY-020073

a precise 40mm hole offers a smooth movement on the shaft and facilitates the balancing operations while the stainless steel guarantees no corrosion

Wi-Fi external antenna

WILLIAM OPTICS 1.25" 90° ERECTING PRISM Chroma - 4 A peakThe William Optics 1. 25" Erecting Prism is a high quality 90 image erecting BAK4 prism with anti reflection coatings for premium refractors. The helical focuser mechanism on the top barrel makes fine focusing quick and easy. Meticulously CNC machined and anodized black, internally matte blackened and threaded for no stray light reflection, the 1. 25" erecting prism is an exceptionally well constructed piece of equipment. The compression ring prevents