作者: Mami Muratani , Haruo Sato
DOI:
关键词: Still camera 、 Optics 、 Zoom lens 、 Zoom 、 Lens (optics) 、 Computer science 、 Artificial intelligence 、 Lens speed 、 Computer vision 、 Optical power 、 Infinity focus 、 Simple lens
摘要: A zoom lens system ZL mounted in an electronic still camera 1 etc is constructed to include, order from object side, a first group G1 having negative refractive power and second G2 positive power, which the has two cemented lenses. distance between changes when position state wide-angle end telephoto state, thereby providing exhibiting preferable optical performance, apparatus including magnification varying method using system.