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d******a
发帖数: 32122 | 2 zz
One of our long time Samsung sources shared some great info about the NX1:
1) Samsung will apply the Fuji Kaizen philosophy on the NX1, It means they
plan to constantly upgrade the camera via firmware updates. The next couple
of months you should expect to great firmware update almost...monthly!
Samsung is collecting feedback from owners to tweak and improve the cam.
2) The NX1 is now selling very very well. In some markets the demand is
higher than the supply. Hence the price will stay uncha... 阅读全帖 |
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d******a
发帖数: 32122 | 3 http://www.dpreview.com/articles/8930601010/samsung-nx1-discont
Update: While still awaiting an official response, a reader pointed out that
the above quote is essentially identical to an official statement from
Samsung gave to PC Advisor last year regarding laptops:
'We quickly adapt to market needs and demands. In Europe, we will be
discontinuing sales of laptops including Chromebooks for now. This is
specific to the region - and is not necessarily reflective of conditions in
other markets,' s... 阅读全帖 |
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e**n
发帖数: 5876 | 4 240fps这个数选的很有意思, 因为P+对焦也是240fps
"read entire 28M sensor at 240 frames per second",它这个肯定是减少了bit
depth才能做到. GX7用12bit, 1/15s读完, GH4是10bit, 1/30读完. NX1用的应该是低
得多的bit depth. 如果它真能10bit 1/240s读完, 就基本上是global shutter了, 可
以完全替代机械快门. 但是NX1好像没有电子快门? |
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d******d
发帖数: 2210 | 10 gh4 被秒啊。
不知道镜头有什么影响。nx1的套头比相机还贵。
：vhttp://www.youtube.com/v/0DigAgYD-QY |
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d******d
发帖数: 2210 | 11 看到了，三星用的是个200多块的头。
nx1看来是有两下子。目前好像还没看到什么负面的评测出来。
：gh4上也是顶级镜头
：【 在 dddddddd (8d) 的大作中提到: 】 |
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d******d
发帖数: 2210 | 12 手闲看了一下Amazon best seller compact system camera, top 100都没有nx1啊。 |
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e**n
发帖数: 5876 | 15 DPR终于开始测raw的DR了. 但各相机测得很不consistent. NX1是ISO200 + 4 stop.
EM5是ISO200 + 3 stops. 没发比呵.
太山寨了 |
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d******d
发帖数: 2210 | 16 "In Europe, we will be discontinuing sales of NX1 cameras for now since
there is already much better and upgraded cameras" |
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b*****s
发帖数: 3390 | 18 NX1彩噪最少，D5500次之，然后是A6K和G7 彩噪上很明显的区别是NX1>D5500>>A6K>=G7
从画面细节来看NX1>=D5500>A6K>G7，看那个人的手指缝
这些都是符合物理规律的：感光能力NX1背照式最好，尼康D5500新的CMOS优化以及一贯
以来的算法都领先，三个APSC大底吃小底，也是很明显的事情
当然这些机器在ISO12800都是渣，我们日常用不到，也就新闻摄影，那些狗仔队或者别
的用途的偷拍需要而已，但是他们显然都用CN的全副高速机 |
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d******a
发帖数: 32122 | 19 Redcrow and SamsungCameraRumors are spilling out info about the next Samsung
NX400 camera that should be announced in January/February.
- Same 28MP NX1 sensor
- Same NX1 autofous system
- Built-in EVF
- smaller buffer than nx1 but triple than nx300.
- 4K recording (although not 100% sure yet)
- no weather sealed body
- Price around $900 with kit lens.
Those features would push the NX400 in direct competition with the Sony
A6000. But if the price gets confirmed it's quite above the $798 you spend... 阅读全帖 |
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e**n
发帖数: 5876 | 20 4K录像越来越流行, 目前市场上可换镜头相机支持4K的有以下几个机型
A7S (需要外置解码器)
GH4
G7(GX8)
NX1
NX500
J5
这次主要比较一下crop factor. 目前绝大部分相机在4K下都是crop mode. 也就是
sensor的pixel和4K录像的pixel是1:1 match. 就是说, 是截了sensor中间大概8.3-8.
8MP的面积用于4K录像成像. 这就产生了2个问题, 一个是成像面积渐少, 画质自然就
下降, 另外就是损失了镜头广角.
A7S: 1:1 match,但是由于像素低, 所以crop的很少, 大概是1.1x. 不过A7S只有UHD
4K(3840 x 2160p), 没有Cinema 4K (4096 x 2160). 由于散热问题, A7S需要用外置解
码器才能拍4k.
GH4: 1:1 match. 在Cinema 4K下crop factor是1.24.
G7(GX8): 1:1 match. 只有UHD 4K(3840 x 2160p), 所以crop factor是1.31. GX8的4k
应该和G... 阅读全帖 |
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D**1
发帖数: 1106 | 21 with latest firmware:
video AF, NX1>GH4>A6000
stills, good light : GH4=NX1=A6000
poor light: GH4=NX1>A6000
A6000对焦其实一般
LX100不知道 |
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D**1
发帖数: 1106 | 22 with latest firmware:
video AF, NX1>GH4>A6000
stills, good light : GH4=NX1=A6000
poor light: GH4=NX1>A6000
A6000对焦其实一般
LX100不知道 |
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q*z
发帖数: 13362 | 23 可惜的是,nx1,lx100都是叫好不叫座型产品.
7d2销量必然完灭nx1
lx100估计也是小众, 感动的G7X比他亲民多了. |
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D**1
发帖数: 1106 | 24 tech wise is definitely an upgrade , 28 mp BSI SENSOR , image below 1600
iso is super clean, almost FF quality. 6400 is definitely usable but not as
good FF. Another thing is NX1 has huge processing power, 实时硬解H265，很
多电脑都不行; sensor records 6.5k video down-sampled to 4K. AF is quite
good but not as good as d750/d810/7dii, AF will hunt a bit in low light.
NX1 机身做工还行，手感竟然很好，但感觉不够sophiticated。 三星的镜头群差了
点，有点太cosumer了, 转接也麻烦。
fuji has the looks and better lens selection, excellent JPG engine... 阅读全帖 |
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e**n
发帖数: 5876 | 25 三星的nx1如果真做出了240fps, 12bit, 全像素读取. 那就完全可以取代机械快门. 机
械快门还要大概1/160s的时间来扫过sensor, 如果全像素读取240fps, rolling
shutter比机械快门还小, 没有理由再保留机械快门了. 但好像nx1根本就没有
electronic shutter |
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y*b
发帖数: 3190 | 26 你要买NX1？ NX1套机($2800)比5D3($2600)套机都贵。。。三爽还死硬不降价 |
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d******a
发帖数: 32122 | 27 The Nikon D5500 shows very similar Raw high ISO performance to the D5300,
all the way up to ISO 25,600, indicating that the cameras are likely using
the same or similar sensor. This is mostly a good thing when it comes to low
-light performance, as the D5300 was a top performer that made it outperform
cameras like the Sony a6000 and Canon 70D. In fact, the D5500 and D5300
have the least noise compared to their immediate competitors, the Canon
Rebel T5i and Sony a6000, at ISO 25,600. We'll take t... 阅读全帖 |
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e**n
发帖数: 5876 | 28 4K有2种格式:
UHD 4K(3840 x 2160)
Cinema 4K (4096 x 2160)
G7的性价比更好.
NX1的4k比GH4好一点, 是目前唯一一个4K超采样. 不知道NX1的追焦性能怎么样 |
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k**********s
发帖数: 6409 | 29
三星的NX1和NX500怎么样？缺乏一个适合录像的象SEL35F18那样的带防抖的标准头。三
星的东西纸面上看都是非常的前卫、非常的完美，拿到手上之后往往会有一些似乎细小
的但是致命的问题，而三星的风格是永远不会再理会这些“小”问题，因为他们总是全
身心地忙于开发更前卫的新版。几年前的Galaxy手机是个例外，在售后的完善更新方面
有改进，所以成绩很好。但是这几年做大了，又回归本色了。三星的东西还都标价离谱
，贬值迅速，所以到目前为止我还没敢碰过。
NX1一个残幅机价格实在是离谱，NX500又没有a6000那样的取景器。 |
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d******a
发帖数: 32122 | 30 yonsarh
Senior Member • Posts: 1,746 • Gear lis
http://www.edaily.co.kr/news/NewsRead.edy?SCD=JE41&newsid=04487
article has been release just today. (16:58 KST)
If you can read Korean go head if you don't, then translate by use chrome
browser.
article says they Samsung will come up with new lineup mirrorless in CES
2016. Most likely it will be successor from either NX1 or NX500.
Pulling off camera from store doesn't mean quit. (Usually this happens when
person who has simplicity idea... 阅读全帖 |
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d*****r
发帖数: 41 | 31 感觉以一个Nx1的vector对一个scalar function 做gradient，结果应该是一个Nx1的
vector，没道理变成一个1xN的vector啊
3.13的那个transpose可能是不对啊，谁是大牛来说说 |
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d*****u
发帖数: 17243 | 32 原理是一样的吧。
x, y都是scalar的话，你这个实际上已经是对二维向量求导了。
如果y是矩阵，可以展开成nx1的向量计算，
不影响结果。 |
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m*****f
发帖数: 1243 | 33 to get the row, multiply matrix with a nx1 vector with all 1.
to get the column, do the same with its transpose matrix
the all-1/0-row/columns are recorded as n/0 in the result vector |
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s********e
发帖数: 2783 | 34 新支持相机：
Canon
Canon EOS 7D Mark II
Canon PowerShot G7 X
Canon PowerShot SX60 HS
Casio
Casio EX-100PRO
Fujifilm
Fujifilm X30
Fujifilm X100T
Fujifilm X-T1 Graphite Silver
Leaf
Leaf Credo 50
Leica
Leica D-Lux (Typ 109)
Leica M-P
Leica V-Lux (Typ 114)
Leica X (Typ 113)
Nikon
Nikon D750
Olympus
Olympus PEN E-PL7
Olympus STYLUS 1s
Panasonic
Panasonic DMC-CM1
Panasonic DMC-GM1S
Panasonic DMC-GM5
Panasonic DMC-LX100
Pentax
Pentax K-S1
Pentax QS-1
Samsung
Samsung NX1
Sony
Sony ILCE-5100
Sony ILCE-QX1 |
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b****r
发帖数: 17995 | 38 残副机竟然2000多刀？！
除了4k摄影，没发现特别一点的东西 |
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e**n
发帖数: 5876 | 41 追焦看起来不错.
暗光对焦也达到-4EV. 看来-4EV流行起来了,现在做不到-4都不好意思跟人打招呼 |
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t********8
发帖数: 14817 | 42 samsung有没有机会彻底打垮sony？？给samsung 10年还是20年 |
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G**Y
发帖数: 33224 | 44 哪壶不开提哪壶呀
这么大的底片排清楚的DV有啥稀奇。问题是谁有机会最飞机排录像呀。
拍录像的话。Samsuang S5就很好了。既然是相机，就老老实实把照片秀出来。 |
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G**Y
发帖数: 33224 | 45 干掉Sony问题应该不大。关键是C/N呀。
对焦看似不错。EVF还是不爽吧。 |
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d******a
发帖数: 32122 | 50 三星官方看到了我在买买提的评论，自惭形秽，主动给撤了 |
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