高手请进!!!镜头的区别!

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从评测来说，越后期的越好（可能在锐度解析力上），但其实拍摄角度讲都差不多的

你说的是50/1.4吧，没有E.zuiko的。只有G.zuiko表示7片镜头。

带MC和直接zuiko的是后期带多膜的，带G.的为单膜（其实也算是多膜了）

玩过3个om 50/1.4，包括MC和G.的，我个人比较喜欢早期G.zuiko

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原帖由 jakeyxxxjakey 于 2010-5-1 11:13 发表
谢谢楼上的朋友````因为我上网查过资料!!有人说1.4前期的头最好!中期和后期的是垃圾!
前期的头应该就是11开头的OM头最好(就是MC头.实际价格也会比其他的要贵几百)
我刚刚买了一个G.zuiko  是21开头的!!我想!!其实有 ...

回帖有些诚恐，俺不是高手，感觉没啥多讲究的

需要更正的是11开头的7位数是最后期，最前期的才是G.zuiko

垃圾也好，牛头也好，自己用的舒服才是最好的，其实所有的说法只是这个评测而起～～，虽然此评测在我用OM镜头感觉而言也挺准确，但没有必要认为是标准。

Written by Ken Norton

Nov 22, 2008 at 03:09 PM

(multi-coated) 50mm f/1.4 Zuiko (multi-coated) OM-2000 with mirror and diaphram prefire; lens with <1,000,000 serial number Vignetting = D @ f/1.4, B @ f/2, A- @ f/2.8, A @ f/4 Distortion = slight barrel Aperture  Center    Corner f/1.4     C         C f/2       B         B f/2.8     B+        A- f/4       B+        A f/5.6     A-        A- f/8       A-        A- f/11      B+        A- f/16      B+        B+ Notes: Moderately high contrast, except moderately low at f/1.4, moderate at f/1.4. 50mm f/1.4 Zuiko (multi-coated) OM-2000 with mirror and diaphram prefire; lens with >1,100,000 serial number Vignetting = D @ f/1.4, B @ f/2, A- @ f/2.8, A @ f/4 Distortion = none No filter Aperture  Center    Corner f/1.4     B         B f/2       A-        B f/2.8     A         A- f/4       A         A f/5.6     A         A- f/8       A-        A- f/11      A-        A- f/16      B+        B+ Notes: High contrast, except moderate in center at f/1.4, moderately low in corners at f/1.4 and moderate in corners at f/16; remarkably even performance across all apertures. With poorly made Vivitar VMC ND3 neutral density filter Aperture  Center    Corner f/1.4     C-        C f/2       C         C f/2.8     B         B f/4       B         B+ f/5.6     A-        A- f/8       A-        A- f/11      A-        A- f/16      B+        B+ Notes: Differences are significant at the 1/3 grade level in this paired comparison evaluation. Contrast was slightly lower with the filter, but lower resolution was the most important factor in image deterioriation. Please note that this particular filter is not indicative of Vivitar or Vivitar VMC filters, in general.  It just tested as a poor sample.  Other filter makers, even the most highly regarded, have been found to have poor samples in selections taken from used and new stocks of filters. The use of the term "poor" means star test images, viewed on a vertical auto collimeter, which show images that are: multiple and overlapping, fuzzy, off center, and images which rotate when the lens is rotated. More often than not, only one of these faults are found in an examined filter. These filters (including the test filter) often look perfectly good when examined without the aid of instrumentation! 50mm f/1.4 Zuiko (multi-coated) OM-1 with mirror lockup; >1,000,000 serial number (different lens than above tests) Vignetting = B- @ f/1.4 Distortion = moderate barrel Aperture  Center    Corner f/1.4     B         B- f/2       A-        B f/2.8     A-        A- f/4       B+        A- f/5.6     A+        A f/8       A         A- f/11      A-        A- f/16      A-        B+ Notes: Moderately high contrast with remarkably even performance across all apertures.

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OM镜而言，

～～zuiko前有字母为早期单膜镜头（也有些是多膜），如G.zuiko,E.zuiko等。zuiko前面大写的字母表示镜片数如：E=5片镜片的松那结构镜头，G=7片结构的变型双高斯镜

～～中后期的镜头，zuiko前没有大写字母了，有MC字样代表多层镀膜

～～最后期的镜头，由于多层镀膜的普及，只是zuiko，也没有大写字母和MC字母了

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镜头编号和区别有一些链接供参考：其实差别不大，呵呵

http://www.four-thirds.cn/forum/ ... 2Bshock1&page=1

http://www.four-thirds.cn/mfilm/2007-01-27/1169829402d73816.html

http://brashear.phys.appstate.ed ... o/LensXCoatings.txt