喝彩兄，OM21/2在20D上损失了广角，该升级全幅数码啦。

duplex兄，OM21/2虽然少，但隔段时间还会冒出来，别着急

asccpo友，如今喜欢OM的还真不多。

weekh兄，OM21/3.5很棒啊！

suncha7311兄弟，曾记得您对手动变焦没兴趣，没想到OM35-80一整就俩！MM漂亮！

foxpix兄，俺有OM28/2啊，当年并称28焦段的F2三大牛镜，大光圈与轻巧兼备，外带不累。

ptl兄，OM50/1.2也有编号1100000前后之说吗？这个可要请Dr Ding前辈解惑了！

再请问前辈50mm F1.2的也分1100000前后这说么？
目前我正在watching一个编号107621的1.2。
PS，这个头要用在EOS上面。

这里有点数据可以看看，好象是区别在1100000编号前后

50mm f/1.4 Zuiko (single-coated)
OM-1 with mirror lockup
Vignetting = C
Distortion = slight pincushion
Aperture  Center    Corner
f/1.4     D         C-
f/2       C-        C
f/2.8     C         B-
f/4       B-        B
f/5.6     B         B
f/8       B+        B
f/11      A-        B
f/16      A-        B+
Notes: Serial number unknown.

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.

小弟在ebay想淘个OM的标头，55mm的没钱，想考虑一下50mm的。
ebay上有不少50mm 1.4的很便宜，请问前辈50mm的OM多少光圈的比较好？什么编码的比较好呢？小的在美国～

多谢！

好象没什么人用这个头啊

我也来搞几张!

Olympus 4Ti + Zuiko 35-80/2.8 ED

***************************************************

EOS 5D + 21mm f3.5

上图,20D+OM21F2

口水呀！首贴里的东东毒死人了。

谢谢喝彩兄。

不客气。镜头如果成色还可以的，3500左右就可以，我这只一年前买的3300，成色还可以，就是前镜片有道很浅的擦痕，不过我又不收藏也不捣器材，用还是没什么问题的。至于电子接环是否需要，还是看个人习惯，但电子接环的对焦提示并不非常可靠，只是大概，它不如裂像来得准，但以我使用手动头以来的感受来看，最准的还是要通过磨砂屏看主体是否最清晰，这是最靠得住的。不过我还是配的电子环，有时也图方便快捷，呵呵。

OM21F2室内太有用了，我这几天一直在家里爽，镜头小得太可爱了；另外感觉变形控制也不错，据说只是大光圈边缘成像相对较弱，收小后也很好，我打算尽快出去试试，拍点风光建筑啥的。

多谢兄弟指点。请问这镜头大概多少钱合适呢？需要用电子转接环吗？

BTW：前天因为股票买卖，在ebay上错过了一只21F2。打击很大……

duplex兄,蔡斯的60/2.8确实非常锐利,色彩也非常棒!第346贴那张镜头照片就是我用此头拍的,这头真好啊,值得进!

可是不容易啊!寻了大半年呢，终于凑到21/2、35/2、90/2三枚，不过我看也就到此为止了，够玩了

恭喜啊！弄到了OM21

嘿嘿,20D拍的容易骗人呀,把赌兄也唬住了

明白了,拿到手我就放到衣柜里面,我已经准备买干燥箱了!

牛！真是牛！就这么一个字

至于是哪枚牛头能在全开光圈如此出色，从景深上估计是F2.8,但考虑是稍远的距离，F2也有可能，实在看不出，是OM35-80/2.8、90/2、100/2中的一枚吗？

[casinoking 编辑于 2008-01-24 14:03]

喝彩兄,多谢大驾光临。摆摊儿单干的活可不敢干，只是添把柴火旺旺藕粉人气

suncha7311兄，这么高成色的OM35-80 ED可真难寻，恭喜！注意原厂遮光罩不要随便安上去哟，否则镜口就破相露白了。

前辈,我太开心啦,今天又买到一个35-80/2.8,而且是99新的!

这是前图100%的截图
光圈全开呀,真不错,而且还是手持的

3,这张可不是最近对焦距离拍的

[无人喝彩 编辑于 2008-01-24 00:54]

2

赌兄,多日不见,摆摊儿单干啦!败了这么多OM好头,真羡慕啊!
辛苦你做了那么多测试以飨藕粉,这么好的贴不顶有罪呀!
凑几张今天刚拿到的头的试镜片,都是接近最近对焦距离,光圈全开拍的,赌兄有空的话,断断这是个啥头

1

[无人喝彩 编辑于 2008-01-24 00:52]

前辈的帖子,一定要支持!

OM50/2 更值得拥有, 也只有OM的微距能做到2.0的光圈!

谢谢，看来SP60/2.8比较有进的价值。

duplex兄，OM 50F2 Marco是1:2，我也在找合适的，没接触过。关于OM镜头，Dr Ding是权威

请教赌王：
OM 50F2 Marco和S-Planar T* 60mm F2.8，有可比性吗？

好像都能达到1：1，嘿嘿。

感觉这类问题，你有发言权。谢谢。

不干我事，俺见所未见，摸所未摸