Baader 2" ClickLock Diagonal Mirror

Description With their ground-breaking introduction several years ago of the all-dielectric 2" Maxbright star diagonal, Baader Planetarium brought mirror star diagonals into the 21st century. The new 2" Clicklock Star Diagonal takes this innovation another step further. Like its predecessor, the 2" Clicklock Star Diagonal uses proprietary Baader all-dielectric mirror coatings. The Baader coating process eliminates the Achilles Heel that has plagued other all-dielectric mirror coatings- normally the multi-layer coating results in high surface stresses that cause a star diagonal's mirror to warp as much as 1/2 wave, ruining the figure and distorting the optical wavefront. Baader's proprietary coating process maintains the 1/10 wave mirror surface accuracy- After Coating! Highlights Oversized 2" dielectric 1/10 wave mirror Scratch resistant hard coated mirror surface for safe cleaning, to remain scratch free even if subjected to harsh environment Mirror rejects deep UV and IR radiation,