Paul Hawxhurst, senior professional market specialist, talks about the Dual Gain Output imaging sensor:
"... that expands the dynamic range to over 16 stops. How does it do that? Each pixel on the sensor is split into two different diodes. Those diodes are always taking two frames of the exact same image. Now for Dual Pixel autofocus, it's using those two frames for phase detection. However, the Canon engineers realized that they can use those two different frames and value them at different gains in order to expand the dynamic range. And so what is happening here is that off of diode A you have one image that is low gain and low noise. Off of diode B you're getting a frame that is of higher gain, but it satisfies the pixel's need for saturation. So, these two separate frames that are of the same image of the exact same point in time but at two separate gains are combined and then dumped out of the sensor. Because these frames are of the exact same point in time and of the exact same image, there is absolutely zero temporal artifacting happening in this. What the Dual Gain Output sensor gives is a lower noise floor and hence a much wider usable latitude. Now, this is especially true in the shadow region."
【 在 hercubic (cubic) 的大作中提到: 】 : 16+EV 索尼又被超越了... : Paul Hawxhurst, senior professional market specialist, talks about the Dual : Gain Output imaging sensor: : : "... that expands the dynamic range to over 16 stops. How does it do that? : Each pixel on the sensor is split into two different diodes. Those diodes : are always taking two frames of the exact same image. Now for Dual Pixel : autofocus, it's using those two frames for phase detection. However, the : Canon engineers realized that they can use those two different frames and : value them at different gains in order to expand the dynamic range. And so : ...................
奇技淫巧 尼玛也不想想pixel小一半噪声大一节呢 欠曝了B改也改不出来，过曝了A也修不回来所以就是扯 同一个pixel接俩高阻不同gain的AD难度为零吧 【 在 hercubic (cubic) 的大作中提到: 】 : 16+EV 索尼又被超越了... : Paul Hawxhurst, senior professional market specialist, talks about the Dual : Gain Output imaging sensor: : : "... that expands the dynamic range to over 16 stops. How does it do that? : Each pixel on the sensor is split into two different diodes. Those diodes : are always taking two frames of the exact same image. Now for Dual Pixel : autofocus, it's using those two frames for phase detection. However, the : Canon engineers realized that they can use those two different frames and : value them at different gains in order to expand the dynamic range. And so : ...................
【 在 hercubic (cubic) 的大作中提到: 】 : 16+EV 索尼又被超越了... : Paul Hawxhurst, senior professional market specialist, talks about the Dual : Gain Output imaging sensor: : : "... that expands the dynamic range to over 16 stops. How does it do that? : Each pixel on the sensor is split into two different diodes. Those diodes : are always taking two frames of the exact same image. Now for Dual Pixel : autofocus, it's using those two frames for phase detection. However, the : Canon engineers realized that they can use those two different frames and : value them at different gains in order to expand the dynamic range. And so : ...................
这种才是正确的方向.... 【 在 hercubic (cubic) 的大作中提到: 】 : 16+EV 索尼又被超越了... : Paul Hawxhurst, senior professional market specialist, talks about the Dual : Gain Output imaging sensor: : : "... that expands the dynamic range to over 16 stops. How does it do that? : Each pixel on the sensor is split into two different diodes. Those diodes : are always taking two frames of the exact same image. Now for Dual Pixel : autofocus, it's using those two frames for phase detection. However, the : Canon engineers realized that they can use those two different frames and : value them at different gains in order to expand the dynamic range. And so : ...................
头像摄影是比较容易控制的，因为理论上只需要脸的曝光和聚焦 正确，即使是这样，你也要两三个灯，一个布景etc... 好的风景摄影就要难一些，因为你眼睛看到的和拍下来的可能完全 不一样，不只是一个点的曝光和聚焦，而且基本不可能用灯来补偿， 所以对器材和技巧的要求就会高一些。 dude, i was not trying to fight with you. just to understand what you need to do a little better so that the conversation can be relevant....
16+EV 索尼又被超越了...
Paul Hawxhurst, senior professional market specialist, talks about the Dual Gain Output imaging sensor:
"... that expands the dynamic range to over 16 stops. How does it do that?
Each pixel on the sensor is split into two different diodes. Those diodes
are always taking two frames of the exact same image. Now for Dual Pixel
autofocus, it's using those two frames for phase detection. However, the
Canon engineers realized that they can use those two different frames and
value them at different gains in order to expand the dynamic range. And so
what is happening here is that off of diode A you have one image that is low gain and low noise. Off of diode B you're getting a frame that is of higher gain, but it satisfies the pixel's need for saturation. So, these two
separate frames that are of the same image of the exact same point in time
but at two separate gains are combined and then dumped out of the sensor.
Because these frames are of the exact same point in time and of the exact
same image, there is absolutely zero temporal artifacting happening in this. What the Dual Gain Output sensor gives is a lower noise floor and hence a
much wider usable latitude. Now, this is especially true in the shadow
region."
kao!!!
心态崩了，骚尼现在只有追焦能吹吹了。甩卖骚尼了！
这sensor卖给尼康不？
【 在 hercubic (cubic) 的大作中提到: 】
: 16+EV 索尼又被超越了...
: Paul Hawxhurst, senior professional market specialist, talks about the
Dual
: Gain Output imaging sensor:
:
: "... that expands the dynamic range to over 16 stops. How does it do that?
: Each pixel on the sensor is split into two different diodes. Those diodes : are always taking two frames of the exact same image. Now for Dual Pixel
: autofocus, it's using those two frames for phase detection. However, the
: Canon engineers realized that they can use those two different frames and : value them at different gains in order to expand the dynamic range. And so
: ...................
这个只是R5才有的吧？还是再下一代的
云评测，妥妥的云上云
现在还不知道 C300已经有了。
【 在 allaninla (Allan) 的大作中提到: 】
: 这个只是R5才有的吧？还是再下一代的
这个不是测评 讨论技术。
【 在 shaver (The Master of Keyborad Photography) 的大作中提到: 】
: 云评测，妥妥的云上云
对尼康是好消息 不用被索尼底卡脖子了
【 在 dola (dola) 的大作中提到: 】
: 这sensor卖给尼康不？
: Dual
这是c300iii上的， 不会出现在照相机上的。
这时候发布c300iii明显就是告诉你：8k就是噱头，认真拍电影还是得电影机。
感动果然常在！
【 在 zhanchui (战锤) 的大作中提到: 】
: 这是c300iii上的， 不会出现在照相机上的。
: 这时候发布c300iii明显就是告诉你：8k就是噱头，认真拍电影还是得电影机。
云讨论，云遮雾障。。。。。。。
【 在 hercubic(cubic) 的大作中提到: 】
: 这个不是测评 讨论技术。
妙用感动双像素提高动态范围
【 在 shaver (The Master of Keyborad Photography) 的大作中提到: 】
: 云讨论，云遮雾障。。。。。。。
: : 这个不是测评 讨论技术。
:
主要是照相动态范围真的没啥用，强拉5档曝光的失真太严重了，真没啥必要。
体育记者甚至都直出jpg也完全够用。
电影机的话，动态范围确实是核心竞争力。
【 在 hercubic (cubic) 的大作中提到: 】
: 感动果然常在！
感动拍照动态范围落后10年了 不打翻身仗 粉丝不同意
【 在 zhanchui (战锤) 的大作中提到: 】
: 主要是照相动态范围真的没啥用，强拉5档曝光的失真太严重了，真没啥必要。
: 体育记者甚至都直出jpg也完全够用。
: 电影机的话，动态范围确实是核心竞争力。
不，我很同意，我完全不需要动态范围。
【 在 hercubic (cubic) 的大作中提到: 】
: 感动拍照动态范围落后10年了 不打翻身仗 粉丝不同意
奇技淫巧
尼玛也不想想pixel小一半噪声大一节呢
欠曝了B改也改不出来，过曝了A也修不回来所以就是扯
同一个pixel接俩高阻不同gain的AD难度为零吧
【 在 hercubic (cubic) 的大作中提到: 】
: 16+EV 索尼又被超越了...
: Paul Hawxhurst, senior professional market specialist, talks about the
Dual
: Gain Output imaging sensor:
:
: "... that expands the dynamic range to over 16 stops. How does it do that?
: Each pixel on the sensor is split into two different diodes. Those diodes : are always taking two frames of the exact same image. Now for Dual Pixel
: autofocus, it's using those two frames for phase detection. However, the
: Canon engineers realized that they can use those two different frames and : value them at different gains in order to expand the dynamic range. And so
: ...................
这是佳能的传感器, 还是用了三星的技术?
【 在 hercubic (cubic) 的大作中提到: 】
: 16+EV 索尼又被超越了...
: Paul Hawxhurst, senior professional market specialist, talks about the
Dual
: Gain Output imaging sensor:
:
: "... that expands the dynamic range to over 16 stops. How does it do that?
: Each pixel on the sensor is split into two different diodes. Those diodes : are always taking two frames of the exact same image. Now for Dual Pixel
: autofocus, it's using those two frames for phase detection. However, the
: Canon engineers realized that they can use those two different frames and : value them at different gains in order to expand the dynamic range. And so
: ...................
你是说你很厉害还是不厉害...
你都拍啥？
【 在 zhanchui (战锤) 的大作中提到: 】
: 不，我很同意，我完全不需要动态范围。
他没有说让你用过曝或者欠曝的部分，是扩大正确曝光的
范围，所以在算法上肯定要有改进，怎么取舍两个frame的
正确曝光范围。而且硬件上也可以改进。
【 在 zhanchui (战锤) 的大作中提到: 】
: 主要是照相动态范围真的没啥用，强拉5档曝光的失真太严重了，真没啥必要。
: 体育记者甚至都直出jpg也完全够用。
: 电影机的话，动态范围确实是核心竞争力。
两个独立的pixel互相check也是可以降噪的，我觉得
最好是不同的senser，一个低感，一个高感会更好，
用连个一样的pixel是一个开始，prove of principle.
【 在 antee (蚂蚁) 的大作中提到: 】
: 奇技淫巧
: 尼玛也不想想pixel小一半噪声大一节呢
: 欠曝了B改也改不出来，过曝了A也修不回来所以就是扯
: 同一个pixel接俩高阻不同gain的AD难度为零吧
: Dual
这种才是正确的方向....
【 在 hercubic (cubic) 的大作中提到: 】
: 16+EV 索尼又被超越了...
: Paul Hawxhurst, senior professional market specialist, talks about the
Dual
: Gain Output imaging sensor:
:
: "... that expands the dynamic range to over 16 stops. How does it do that?
: Each pixel on the sensor is split into two different diodes. Those diodes : are always taking two frames of the exact same image. Now for Dual Pixel
: autofocus, it's using those two frames for phase detection. However, the
: Canon engineers realized that they can use those two different frames and : value them at different gains in order to expand the dynamic range. And so
: ...................
将来出现在1D上可能只是时间问题，我还是认为把镜子去掉，
用节省出来的空间做更好的senser，和功能，保留EF口才是
正确的方向。
【 在 zhanchui (战锤) 的大作中提到: 】
: 这是c300iii上的， 不会出现在照相机上的。
: 这时候发布c300iii明显就是告诉你：8k就是噱头，认真拍电影还是得电影机。
h说“粉丝不同意”，我代表粉丝表示很同意，跟厉害不厉害没关系。
我就一个普通家庭用户，我只按脸曝光。
【 在 cocojumbo99 (cocojumbo) 的大作中提到: 】
: 你是说你很厉害还是不厉害...
: 你都拍啥？
头像摄影是比较容易控制的，因为理论上只需要脸的曝光和聚焦
正确，即使是这样，你也要两三个灯，一个布景etc...
好的风景摄影就要难一些，因为你眼睛看到的和拍下来的可能完全
不一样，不只是一个点的曝光和聚焦，而且基本不可能用灯来补偿，
所以对器材和技巧的要求就会高一些。
dude, i was not trying to fight with you. just to understand
what you need to do a little better so that the conversation
can be relevant....
【 在 zhanchui (战锤) 的大作中提到: 】
: h说“粉丝不同意”，我代表粉丝表示很同意，跟厉害不厉害没关系。
: 我就一个普通家庭用户，我只按脸曝光。
看了一下EOS C300 Mark III,还真是一个不错的照相机，
有钱可以试一下啊，可以用EF口镜头。
4K 120fps
2CF cards
【 在 cocojumbo99 (cocojumbo) 的大作中提到: 】
: 将来出现在1D上可能只是时间问题，我还是认为把镜子去掉，
: 用节省出来的空间做更好的senser，和功能，保留EF口才是
: 正确的方向。