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SMC high-definition coating has high light transmittance and clear imaging: this coating is burgundy, in order of light transmittance: wine red film> green film> blue film, the better the coating, the higher the light transmittance. The clearer the color of the picture
The BAK4 prism phase film is coated with high-reflective dielectric film for high-definition and sharp imaging. The prism group is coated with phase film, high-reflective dielectric film and reflective film. The contrast is higher and the image is sharper in the low light environment at night.
The true 50-caliber light-entry foot picture is brighter, and each optimization effect is both a cost consideration and a breakthrough in the technical threshold; the large objective lens has a wider field of view and the light-entry amount is brighter.
The 8 ~ 12 magnification is the hand-held gold magnification: don’t be greedy for high magnification, the higher the magnification is, the clearer and farther you look. The magnification is too high and the image is jittery and blurry. Most telescopes are 8 ~ 12 times
Roof prisms are phase-coated to improve imaging contrast and are easy to recognize in low-light environments at night. Semi-penta prisms are coated with high-dielectric film, reflective film level: aluminum-plated < silver-plated < high-reflective film
