IS SWAROBRIGHT a "dielectric mirror" tyhpe of coating? (1 Viewer)

Similar to the high lux coating in the leica???
is this the p-coating on the roof prism or is this in addition to the P-coating??

308CAL said:

Similar to the high lux coating in the leica???

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Yes, it is. AFAIK Swarovski was the first manufactorer that used these kind of coatings in binoculars and spotting scopes. Note: normally only roof bins with Schmidt-Pechan prisms have a mirrored surface.

is this the p-coating on the roof prism or is this in addition to the P-coating??

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No, it is not but it´s in addition. In a roof prism - no matter if it´s of the Schmidt-Pechan or of the Abbe-Koenig type the beam of light is devided in two halves. When these two halves meet together again some wavelengths tend to erase each other due to phase shift and interference. The result is a lost of optical information which could be visible as a lost of contrast. The phase-coatings correct these effects.

Steve