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Samples in periodicals archive:
The binos use roof prisms with phase-coated prisms, XD extra-low dispersion glass, fully multi-coated lenses with Armor Tek coating on the exterior lenses.
5-37mm in 35mm format) Elements in Groups 10 elements in 8 groups (2 Aspherical lens, 1 Extra-low Dispersion lens) Angle of View 99.
The new lens system features two Extra-low Dispersion (ED) lenses which suppress chromatic aberration and contribute to high descriptive performance across the entire zoom range 45-175mm.
The optical construction consists of 13 optical elements in nine groups including three Extra-low Dispersion (ED) glass elements and one Super ED glass element that effectively minimize chromatic aberration, even at the widest aperture settings.
Comprised of 8 groups of 12 elements, the lens of the OptioMX4 features aspherical lenses and extra-low dispersion glass elements to minimize aberration.
6 standard zoom lens (model SAL-1855) incorporates aspherical and Extra-low Dispersion (ED) elements to provide an all purpose lens with outstanding image quality.
The PJTX100 is equipped with Hitachi's proprietary Super-Focus Quattro ELD Lens which combines four extra-low dispersion lenses and two aspherical lenses to reproduce 720p high definition images with exceptional focus quality.
5mm wide-end viewing angle, extra-low dispersion glass and 20x optical zoom.