| Country of Origin | Russian Federation |
|---|---|
| Brand | Rainbow Optics |
Check the listing for details. Barium Fluoride BaF2 rectangular window, new 4.0" x 0.8" x 0.2". Condition: New, Made in Russian Federation. Listed at 350.00 USD. Barium fluoride’s low index of refraction of 1.48 provides high transmission without the need for anti-reflection coatings. While barium fluoride windows are less resistant to water than calcium fluoride, BaF.