Swarobright Coating and P-coating (1 Viewer)

[Gijs van Ginkel]

GrampaTom, post 40,
If you scroll over the powerpoint you will reach number 57, it is easy to find but you have to do a little work and since it did cost me a lot of time and effort I thought that you could share a little by let the reader take a few seconds to find 57. If I can do it you can do it ..
Gijs van Ginkel

 

[GrampaTom]

GrampaTom, post 40,
If you scroll over the powerpoint you will reach number 57, it is easy to find but you have to do a little work and since it did cost me a lot of time and effort I thought that you could share a little by let the reader take a few seconds to find 57. If I can do it you can do it ..
Gijs van Ginkel

No objections. I did enjoy the journey, were several stops I made along the way.. Thanks

 

[ananda]

It's a multiple layer coating that's used on the non-total internal reflection surface found on most roof prisms
i.e. it acts as a mirror

In the characteristics of all Nikon Prostaff binoculars, the prism coating is marked as "mirror prism coating", does this mean that the observed image appears to be reflected from a mirror?

 

[tenex]

In the characteristics of all Nikon Prostaff binoculars, the prism coating is marked as "mirror prism coating", does this mean that the observed image appears to be reflected from a mirror?

Not in the sense that the image comes out reversed, just that prisms work by (multiple) reflection. Many roof prism designs do require a reflective coating on one surface where the angle can't achieve total internal reflection. In cheaper bins it may still be a silver or even aluminum coating, a literal "mirror"; in higher-end models today it will be a multilayer dielectric coating that functions like one, but is more efficient.

 

[ananda]

Not in the sense that the image comes out reversed, just that prisms work by (multiple) reflection. Many roof prism designs do require a reflective coating on one surface where the angle can't achieve total internal reflection. In cheaper bins it may still be a silver or even aluminum coating, a literal "mirror"; in higher-end models today it will be a multilayer dielectric coating that functions like one, but is more efficient.

Yes, I understand, when I said "the observed image is reflected from the mirror", I didn't mean that the image is reversed or turned from left to right, I just wanted to know if the mirror feeling is felt (i.e. when observed, the image does not matte, but on the contrary glossy , as if smeared with oil)?
in my opinion aluminum or silver coating of prisms gives a feeling of a mirror...

 

[tenex]

I just wanted to know if the mirror feeling is felt (i.e. when observed, the image does not matte, but on the contrary glossy , as if smeared with oil)?

Ah, I forgot the matte/glossy thing. No, binoculars don't strike me as resembling mirrors, and I don't think dielectric coatings are somehow less attractive than silver. Some do seem to have a bit of extra clarity, transparency, or lucidity though, like good Porro prism models (Habicht, E II). Perhaps you'd like to try one of those.