推荐回答（5个）
佳能的黑点条文问题解决了，新机器不会有问题
D700最大的优势在于对焦系统，51点对焦非常强劲，特别是暗光对焦，相对佳能优势明显，此外，高ISO的画质也比佳能好一点，宽容度也比佳能高一点，机身机械做工（防水防尘）操作性都比佳能好
5D MarkII低ISO的画质细节略比D700好，有录像功能，但是并不完善，比较鸡肋。5D MarkII的2400万高像素我觉得其实是一个劣势，对我们大多数人来说，1200万像素已经远远足够，为什么？1200万是什么一个概念？如果你需要，可以将1200w像素的照片打印到20寸依然非常的清晰，但是我们一般人打印10寸以上照片的概率有多少？ 既然我们不需要那么多像素，为什么说他是一个劣势呢？ 因为我们经常使用raw格式存储照片，这样后期有更多的空间，画质也更好，但是raw格式只能保存为全像素的，2400万像素的raw格式照片非常大，不但会成倍的消耗你的磁盘空间，电脑处理器照片来，时间也会成倍的增加
买机器也是选择镜头群，接下来谈谈镜头。
既然上这个档次的机器，其实选择狗头就没什么必要了，要么中端的镜头，要么高端的镜头
佳能在中端的镜头是不错的，17-40/4 24-105/4is 70-200/4is 这三支镜头都不错，特别是70-200/4is，画质甚至超过了高端的小白
高端镜头佳能也不错16-35 24-70 70-200is，但是和尼康比起来略有逊色（见后）
尼康的全副镜头，最大的问题是中端比较空白，这是因为早期尼康进入全副比佳能晚，所以重心更偏重非全副
高端镜头 12-24/2.8 24-70/2.8 70-200/2.8 三支镜头都相当经典，12-24不用说了，最强牛广角，24-70，这个焦段的镜皇，70-200小竹炮，无可挑剔，因为都比佳能的三大元晚一点上市，所以整体性能占优
所以整体来看，D700比较占优
楼上怎么看着好像在发广告呢
言归正传
楼主貌似打错了 24-70哦~~
实际测试过2个镜头 24-70L和24-105L 焦点成像差不多 几乎差别不大 不同在焦外
24-70L焦外更加柔和 并且虚化程度很大 并且形象有优势呵呵 24-105遮光罩小 并且和镜头一起伸缩 标准的外变焦 很难看 24-70L不会 变焦被遮光罩挡住了~~呵呵
50 1.4定焦 你有24-70L的话 这个头配不配 意义不太大 是成像好 但是毕竟不是L 成像和24-70L拉不开距离 所以意义不是很大 个人觉得 除非追求很大很大的虚化
简单点说, 还是推荐2470L
我认识的朋友
有买了24105L, 后悔了天天想着换2470L的
但是没有一个买了2470L后悔了想换24105L的
呵呵.
镜头这玩意儿, 搭配5D2的话2470L目前确实是最佳的挂机头了. 多花的银子还是很值得的.
建议24-70L，以后在入个爱死小白。至于定焦1.4有点鸡肋，兔子上用85吧。
24-70的整体看上去比24-105好很多，虽然锐利度方面差不多。但是焦外等要好很多。
用24-70的话501.4没有必要了。省点钱买个好的三角架更值得。
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