1) ultrafocuses
超焦距
1.
A theoretical amendment and interity on the method of ultrafocuses;
超焦距对焦法的理论修正和完善
2.
This essay gives a detailed mathematical proof of the traits of the depth of the field and ultrafocuses,the factors affecting the depth of the field that is directly showed in other photographic articles.
对现有摄影文献直接给出的景深及超焦距的特点和影响景深的因素作出了详细的数学证明 ,进一步探讨了这些结论在摄影技术中的实际意义 ,使得景深理论更为充实和完
2) hyperfocal distance
超焦距
1.
The formulas of field depth and hyperfocal distance once appeared in bibilography, but the physical concept as starting point for inference of the formulas is not so clear that it is hard for the others to understand.
景深和超焦距公式曾在文献中出现过，但推导公式出发点的物理意义不明确， 难以服人。
3) hyper long focal length
超长焦距
4) hyperfocal distance
超焦点距离
5) hyperfocal chart
超焦距测定表
6) focus
[英]['fəʊkəs] [美]['fokəs]
焦距
1.
Precision measuring system of focus to aerial cameras with CCD;
航空相机焦距CCD精密测量系统
2.
New focus measuring method of camera zoom lens;
一种摄像机变焦镜头焦距测量的新方法
3.
This article introduces the theory and design methods of a zoom lens controller for zooming focus,focussing,and focus feedback in the incorporate zoom lens CCD camera based on 89C2051 microchip and MAX187 A/D switch.
本文介绍了可变焦一体化CCD摄像机中的一种基于89C2051单片机和MAX187 A/D转换器的变焦镜头控制器进行变焦和聚焦控制,以及焦距反馈的原理及实现方法。
补充资料：超焦距
超焦距(Hyperfocal distance)同于定焦距。镜头对某距离对焦时，以其距离为中心，从前方到后方的一定距离属于景深，算是对准了焦点。其后方的景深超出无限远的距离，称为超焦距。愈是缩小镜头光圈，景深愈大，而超焦距离变小。对超焦距固定焦点的是定焦照相机。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条