花资这张目标飞鸭的焦点后移到后面背景鸭的鸭翼上了，估计是不是和背景鸭翼的黑白翼毛反差比目标鸭的翼内基本没有反差的白软毛明显些有关？故焦点移后鸭翼上了

另感觉对焦与快门释放平衡设置的话还是存在虚焦现向的，特别是景深较浅的时候。。。我爱用对焦优先，宁愿快门按不下去也用对焦优先，因高速机如果放快门慢了一次就可能拍了十几二十张，如我在A77II上回放一看有些片子里蜂鸟的眼睛都没对上对嘴上去了，删起来也麻烦，故现一直用对焦优先较多。。。

但下一张焦点就飞到靠近相机这一端了，并且没有再飞回去，后面的向空中抛鱼、争抢的片子全是糊的，太可惜了。

A7R3追拍，焦平面是前后变动的，对焦与快门释放平衡设置的话，第二、三张开始的几张是比较准的，后面的片子跑的概率比较大。

瞬间焦点飞掉

A7R3、100-400GM打横飞的鸭子，焦平面能稳定三张左右。

雨中黑尾塍鹬

看到前面用转接镜头来判断对焦成功率就懒得看了

　

看来俺是年龄大了，老眼昏花反应迟钝了，还以为人家可能是对新器材了解不够，或是“睡不着觉怪床歪”的个人体会，结果错了，能和那些臭名昭著的索黑为伍，且如此热络，却拉黑说公道话真正的索尼用户就一目了然了，原来是一※※伍的两个番号※※在这会师了。

怪不得标题就是明褒暗损，而损是实质，本来厂家对转接就做了功能限制（厂家商业考量也无可厚非），却装着不知，对转接打鸟成功率大做文章，且以此来证明该机对焦性能如何的不堪。

被明确告知其功能限制后，换成原生头仍在继续其打飞鸟如何不堪说，且很愚蠢的上了两张就连另一番号队友都看出问题来了的横向运动和悬停下的严重失焦鸟片来佐证，尽管俺看了很错愕，这种内行一看就知道非机子原因所造成的失焦，却被打鸟老手用来证明A7RIII的追焦如何不堪让人心存疑虑。

尽管如此，但还是不愿向最坏的方向去想别人，还认为可能属于“睡不着觉怪床歪”一种人，直到上面其与著名索黑的对话，再翻回前面看其对话这才恍然大悟，是俺错了！ 原来是一※※伍的两个番号※※，都属于索黑一类，不过是比那些天天来此的低级黑水平要高一些、手段更隐蔽一些罢了，但上面那两张用来佐证的垃圾片太拙劣，彻底暴露出其真实用意，一切真相大白！该收场啦！！！。

在此附上俺试拍A7RIII的体验《试用A7RIII全能机10FPS超高速连拍（纵向）》****** 的帖子
https://forum.xitek.com/thread-1719903-1-1-1.html

还有三肚摄友的《7r3 对焦感受》帖子
https://forum.xitek.com/thread-1728675-1-1-1.html

以上都是实拍体验！

再请看授予A7RIII年度大奖称号的世界著名的DP测评网站关于该机连续对焦方面的评论。
https://www_dpreview_com/reviews/sony-a7r-mark-iii-review/7

Autofocus Evaluation

With the sports-focused a9, Sony's shown that they know a thing or two about how to design a really successful autofocus system; they also claim they've taken what they've learned from that camera to improve performance on the a7R III. While the a7R III uses the same sensor and number of AF points as its predecessor, it's capable of shooting twice as fast, and Sony claims that tracking performance is twice as good as well.

Let's see how that bears out in our testing and real-world experience.

Long range depth tracking

When using a single, centrally located point placed over an approaching subject, it's no surprise that the a7R III does very well, whether shooting at 8fps with Live View or its maximum speed of 10 fps. As we'd expect from a camera of this caliber, the hit rate is basically 100%.

With Dan riding straight at the camera and the AF point placed over his vest, the a7R III ably kept him in accurate focus.
Long range subject tracking

Our subject tracking evaluation shows off a couple of interesting aspects of the a7R III's Lock-On AF implementation.

For the most part, the camera did extremely well with identifying our subject and sticking to him throughout the run, though performed slightly better overall at 10fps instead of 8fps with live view - more on this later. We would expect broadly good performance here, considering Dan is well isolated in depth from any background elements, making him easy to identify as the subject. Unfortunately, the majority of images are just slightly soft - certainly not enough to be unusable by any means, but 42.4MP of resolution can be pretty unforgiving at 100%.

In any case, it appears that since the tracking 'box' makes up most of Dan's upper half, there are necessarily parts of him that are both closer to and further from the camera than the front of his vest. In essence then, the camera (versus the photographer) makes a judgment call about what portion of the subject should be in critical focus.

本帖最后由 山野的秋 于 2018-1-7 16:44 编辑

这帖子里著名的牛鬼蛇神黑子※※小丑都到齐了哈，个个兴高采烈像是找到宝似的，这样宝平时可不容易找到啊，看来这帖子的功效大大的！呵呵！

正好花工有索尼器材，如果他能拍出来不是更好嘛，有利于竞争。拍不出来就说明索尼不行，也可以让大家知道索尼机适合做什么。不然一边是吹，一边是“黑”，初学者会找不到北。

不过说实话，这种环境下37连拍不脱焦，很难！ 本帖最后由 D+L 于 2018-1-6 21:12 编辑

没有多少改观

像素密度上去了，只要是白天光线比较充足（跟阴天晴天没啥太大关系，只要阴天的天光不至于低到乌云密布的程度），都能拍的不错，而且像素密度高的（43）放到类似大小，细节会更密集一些

然而光线差一点的傍晚以后，阴影占主导，差距就出来了

好比自行车跟兰博基尼，在烂泥路上跑，速度是不会有多大差别的，甚至由于兰博基尼车身太矮托底，可能会走的更尴尬一些，甚至更慢
由此你可以得出自行车跟兰博基尼性能差距不到两倍的结论吗？

本帖最后由 maolegemi 于 2018-1-6 02:17 编辑