James Bean
Well-known member
Ed, To confirm the colour of reflections on your 10x50 Kestrel, my 2000 model has only green reflections on both ocular and objective lenses. However, if held to reflect light at an angle from a bright source (sunlit window) the light reflects as purple on the green lens surface. In comparison, my Audubon big-body 3b has very pale yellow/gold coatings which, at an angle from the window, produce pale yellow reflections with perhaps just a hint of purple. Compared with the Kestrel, the Audubon view is slightly "washed out" but a larger field (as you'd expect). Don't know if this is any help... Jim.