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索尼A6400无反转相机版本：实时对焦和实时跟踪，最快的对焦系统_我的网站

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A | With a Tory leadership contest in full swing, former Chancellor Rishi Sunak has pledged to slash the basic rate of income tax by 20% by 2029 if he becomes UK prime minister, the largest such reduction in 30 years.,“What I’m putting to people today is a vision to deliver the biggest income tax cut since Margaret Thatcher’s government. It is a radical vision but also a realistic one, and there are some core principles that I’m simply not prepared to compromise on, whatever the prize,” Sunak emphasized.,Thatcher was Prime Minister of the UK from 1979 to 1990.,The ex-Chancellor also promised that if he prevails in the Tory leadership race, he will “never get taxes down in a way that just puts inflation up.” The 42-year-old added that he will “never make promises” he “can’t pay for” and he will “always be honest about the challenges” Britain faces.,Rishi Sunak Seeks to Crack Down on Foreign Lawbreakers, Increase Number of Deportations29 July, 09:11 GMT,“Because winning this leadership contest without levelling with people about what lies ahead would not only be dishonest – it would be an act of self-sabotage that condemns us to defeat at the next general election,” Sunak pointed out.,The Daily Mail cited an unnamed source from Foreign Secretary Liz Truss’s Tory leadership campaign as accusing Sunak of offering ‘jam tomorrow’.,“It’s welcome that Rishi has performed another U-turn on cutting tax, it’s only a shame he didn’t do this as chancellor when he repeatedly raised taxes. The public and Conservative Party members can see through these flip-flops,” the source argued.,This was echoed by Simon Clarke, chief secretary to the Treasury, who underscored that they “cannot afford to wait to help families, they need support now.” He made it clear that “Liz will cut taxes in seven weeks, not seven years.”,Sunak and Truss repeatedly locked horns over the tax issue during live TV debates last month, with the foreign secretary, in particular, accusing the former Chancellor of raising taxes “to the highest level in 70 years,” which is “not going to drive economic growth.”,Sunak claimed that the UK’s massive tax burden was the result of the unprecedented levels of government spending aimed at keeping the national economy afloat amid the coronavirus pandemic. Truss said that no other country was raising taxes, and accused Sunak of having no clear-cut plan for economic growth.,Meanwhile, voting ballots will start landing on doorsteps of Tory members starting Monday, with many of them expected to return the papers long before the September 2 deadline.,Sunak Unveils 10-Point Border Security Plan as Truss May Turn to Foreign Policy in Fight for PM Seat24 July, 06:12 GMT,Sunak and Truss are now two remaining candidates in the race to replace Boris Johnson as Conservative Party leader and prime minister. Both secured their places in the final two in July, when Trade Minister Penny Mordaunt was knocked out in the fifth round of voting by Conservative MPs.,The two contenders are set to spend the next few weeks campaigning for the votes of about 180,000 Conservative Party members around the country, who will vote by postal or online ballot. The winner of the party leadership race, who will be announced on September 5th, is due to automatically become UK prime minister.。1月16日，据外媒消息，索尼今天发布了最新的反反射相机。新的A6400具有令人印象深刻的规格和一系列新功能，包括实时眼睛自动对焦、实时跟踪和世界上最快的自动对焦。A6400的内部是一个2420万像素的APS-C Exmor CMOS传感器，带有最新一代的BioNZ X图像处理器。其最大ISO为3200（可扩展至102400）。它可以使用机械快门以每秒11帧的速度连续拍摄照片，或者静音以每秒8帧的速度连续拍摄照片。具有完整的AF/AE跟踪功能。缓冲区可以捕获多达116个jpeg帧或46个原始压缩帧。A6400的主要优点之一是它的自动对焦功能。

B | 该相机具有425相位和对比度检测自动对焦功能，覆盖了84%的图像区域。索尼声称，自动对焦系统是世界上最快的，锁定物件只需0.02秒。A6400还引入了索尼新的高级“实时眼AF”和“实时跟踪”功能。实时眼AF是索尼眼AF技术的最新版本。

C | 它使用基于人工智能的目标识别来检测和跟踪眼睛，提高了准确性、速度和性能。”在所有的自动对焦模式中，相机现在可以自动检测到物体的眼睛，并用半按快门按钮激活自动对焦。在AF-C或AF-A模式下，可以选择首选的眼睛（左或右）作为焦点。选择包括自动/右眼/左眼，开关右眼/左眼功能也可以被指定为自定义功能。

D | “索尼还将扩大动物的眼睛跟踪，这是野生动物摄影师的一个宝贵功能。该功能将在2019年夏季通过摄像头固件进行更新。实时跟踪还使用相同的基于人工智能的系统来识别主题，并确保它们被准确捕获。”实时跟踪是一种新的物体跟踪功能，跟踪焦点中最具挑战性的运动物体。

E | 在半按快门按钮时选择要跟踪的任何主题的能力提供了新的框架灵活性，允许用户更多地关注图像。如果焦点在一个人身上，那么人工智能将被用来实时检测和跟踪对象的眼睛和脸，以达到非常高的跟踪精度。

F | A6400的背面是一个3英寸、180度倾斜的触摸屏LCD显示屏，非常适合自拍和视频博客。EVF上方是一个236万点xga Tru取景器OLED电子取景器。对于视频拍摄，A6400可以拍摄具有全像素读取和无像素合并的内部UHD 4K。

G | 索尼说，相机收集到的数据“大约是4K电影所需数据的2.4倍，然后进行过采样，以产生具有出色细节和深度的高质量4K材料。

H | ”1080p全高清图像质量可以在120 fps和高达100 Mbps的速度下拍摄。

I | 其他视频功能包括S-log2和S-log3、用于即时HDR工作流的混合对数伽马（HLG）图像配置文件、内置间隔计、AE跟踪（高、中、低）、斑马函数、伽马显示助手和代理记录。A6400的其他功能和规格包括弹出式闪光灯、内置Wi-Fi和NFC、八个自定义按钮（具有89种不同功能）、增强的菜单可用性、菜单帮助屏幕、照片星、坚固的镁合金机身和额定200000次循环的百叶窗。这是一张使用索尼A6400拍摄的官方照片：新的索尼A6400反反射相机将于2019年2月推出并以900美元（约6085元）的价格发货。