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发表于 2011-8-28 09:45:21
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EF-S 和EF 并不匹配,EF-S不能装上全副相机。
rpan 发表于 2011-8-28 09:34
有人把镜头后面的塑料环拆掉,用手或小改锥,两秒就行。结果是,5D2 可用16MP面积,21-55焦段。
Joosay, you just need to remove the piece of plastic at the rear which physically obstructs the mounting of the EF-S lens onto a full-frame camera. The piece of plastic doesn't connect to any circuitry or anything, it's literally just a piece of plastic sitting there, locked into place. You can use a small screwdriver to tilt it out, or I just use my index finger and pull it out. It takes two seconds, literally. Just keep in mind once the plastic is out, the rear element will be the furthest part of the lens extending from the rear, so you can no longer sit the lens on a table without the rear cap on. The circuitry will also become 'naked' once the piece of plastic is out. These factors often scare people, but it's not really that bad. Just put the rear cap on if the lens is out, which is what you'd do anyway.
Moreover, keep in mind you lose a few millimetres on the wide-end. I used both my 10-22 and 17-55 on the 5D, and from experience the 17-55 becomes a 21-55 and the 10-22 becomes a 11.5-22. If you go too wide, the 5D's (larger mirror) swipes the rear element as it flips up during a shot.
The 17-55 really is a gem on full-frame though. The IQ is amazing - better than any of the wide-angle L-zooms I've had (including my current 16-35L II). |
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