Lens Coatings

[jolasa]

Just got my new Asteria TCR 150 R35.

What kind of lens coating does it have?

On the Istar-Optical web site, under Anistigmatic Lenses, I see various lens coatings listed as follows:
1. AR Broadband Multilayer Silicon Dioxide Film (Green-Yellow)
2. AR Broadband Multilayer Film (Green-Yellow)
3. Broadband Multilayer Film
4. Multilayer Film (Green-Yellow)

Which one do I have?

Should one be able to see the color of the coating on the lens - green, yellow, etc.?

JonS

[istarmullet]

Have you had a chance to use the scope? If so, how did it go?

[jolasa]

Waiting for decent weather ... stay tuned ....

[Mike]

ISTAR Optical - LENS COATING SPECIFICATIONS

The coating on all Istar lenses are multilayer silicon dioxide film.
The thickness of our coating is 200nm.
The wavelength range lies between 400-700nm.
Color of the coating is green-yellow. On APO or semi APO triplets the color may shift into vivid purple pink (spot light reflections only)
All lenses are positioned around center of the oven in order to obtain perfect, even thickness of coating over the entire lens surface.
All Istar lenses are fully multi coated, meaning each glass-to-air surface is coated