[求助]工作距离能大于焦距吗
请指点
为什么不可以,主面位置不可以在最后的镜片后面吗!
[此贴子已经被作者于2004-6-9 11:31:48编辑过]
sure № problem
<img src="data/attachment/forum/dvbbs/2004-6/200468114814724.gif" border="0" onload="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.alt=\'Click here to open new window\nCTRL+Mouse wheel to zoom in/out\';}" onmouseover="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.style.cursor=\'hand\'; this.alt=\'Click here to open new window\nCTRL+Mouse wheel to zoom in/out\';}" onclick="if(!this.resized) {return true;} else {window.open(\'data/attachment/forum/dvbbs/2004-6/200468114814724.gif\');}" onmousewheel="return imgzoom(this);" alt="" />
说得对!
<P>没有问题,我都设计过,看你对相差的要求了,</P>
回复:(ASS)没有问题,我都设计过,看你对相差的要求...
<P>一般情况下工作距离比焦距大多少时像差还可以接受?</P><P>我最大做到20mm,再大就不能接受了</P>
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