改正球差的，SCT，MCT用的。 关于Canon DO技术
http://www3.xitek.com/bingqiku/canon/eflens/doe-lens/doe-lens.htm
原来DO技术就是衍射光学元件呀,知道一点,这东西也叫全息透镜,主要用在战斗机瞄准具的平视显示器上,再就是用在第三代微光夜视仪上,用在民用产品上,还头一次听说!要是从理论上讲,这东西可以彻底消除色差,但实际上是否能够做到呢? 不错，好东东。 ARIES Chromacor II是个好东西，正好合我的长焦的马卡镜。。
不过。。。如小蔡兄所说的，真的有够贵!!!!!
不知CANON的DO技术能不能用在折反镜上？因折反镜如马卡等大多都因为太多不必要的衍射产生了眩光。。
把这些衍射光都用于成像该多好啊。。。 ^^ Chromacor的经销商告诉我的
Now some good and bad news about Chromacor-II and Chromacor.
Chromacor-II has very unbelievable 100% visual color correction, but would
work well on some good scopes and have installation problems on others.
Very sensitive to collimation, installation, and good or bad luck. For
unknown reasons, 75% of Chr-II had problems on one scope, then was perfect
on another scope. Literally of the 4 I sold, 3 did not work right on the
first scope they were sold to be used on.
Regular Chromacor (Chr-I) has only 90-95% reduction of color, but very few
problems of mismatch with individual scopes. Chromacor的经销商告诉我的
Now some good and bad news about Chromacor-II and Chromacor.
Chromacor-II has very unbelievable 100% visual color correction, but would
work well on some good scopes and have installation problems on others.
Very sensitive to collimation, installation, and good or bad luck. For
unknown reasons, 75% of Chr-II had problems on one scope, then was perfect
on another scope. Literally of the 4 I sold, 3 did not work right on the
first scope they were sold to be used on.
Regular Chromacor (Chr-I) has only 90-95% reduction of color, but very few
problems of mismatch with individual scopes.
sorry,what scope can use better for this Chromacor? 好象是信达的。
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