PENTAX Corporation is pleased to announce the introduction of the 5mm SMC PENTAX XW series eyepiece designed for use with PENTAX-brand spotting scopes and telescopes in terrestrial and astronomical observations. The new XW series features a wide apparent angle of view (70 degrees), JIS Class 4 weather-proof construction and a long eye relief (20mm). The new optics, incorporating high-refraction, low-dispersion lanthanum glass elements and PENTAX-original multi-layer coating, delivers bright, high-resolution images with minimal aberrations and distortions.

The new XW series retains all the popular features of the current XL series, including eyepiece shape, while upgrading many vital specifications. All XW models feature a 70-degree apparent angle of view, delivering a more dramatic, wide-perspective image than the 65 degrees of the XL series. Laminated optical elements are treated with the innovative partial coating, which offers much higher light transmission capability than the conventional full-surface coating. Thanks to advanced computer simulation technology, internal reflections are drastically reduced to produce brighter, clearer images.