b********n
发帖数: 38600 | 1 http://www.counterpunch.org/2014/04/07/why-is-the-us-honoring-a
If things proceed normally, President Barak Obama will soon proclaim April
11, 2014 “Education and Sharing Day, U.S.A.” Despite the innocuous name,
this day honors the memory of a religious leader whose lesser-known
teachings help fuel some of the most violent attacks against Palestinians by
extremist Israeli settlers and soldiers.
The leader being honored on this day is Rabbi Menachem Mendel Schneerson,
charismatic head of a mystic... 阅读全帖 |
|
r*****8
发帖数: 2560 | 2 满口脏话是拿钱发帖和水平差的标志。
你搞错人了吧，我还没说到合成孔径雷达。卫星找航母，可用的手段太多了，还没
轮到合成孔径雷达。
既然你说到合成孔径雷达，那就说说合成孔径雷达，300公里高的时候，横向分辨
率是30 cm，纵向的分辨率是几厘米
别人搞25米分辨率的，我搞1米分辨率的，技术上没难度。搜索10^11个像素也就
是一秒钟的事。
所以，你的水平是找不到航母的。别人的水平找航母只是几秒的问题。
https://en.wikipedia.org/wiki/Synthetic_aperture_radar
“Careful design and operation can accomplish resolution of items smaller
than a millionth of the range, for example, 30 cm at 300 km, or about one
foot at nearly 200 miles (320 km).”
“Current (2010) airborne systems prov... 阅读全帖 |
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p**o
发帖数: 3409 | 3 【 以下文字转载自 SanFrancisco 讨论区 】
发信人: pulo (／人◕ ‿‿ ◕人＼), 信区: SanFrancisco
标 题: ［紧急动员］旧金山市政厅9月22日表决慰安妇建碑动议，请大家到现场助威
发信站: BBS 未名空间站 (Mon Sep 21 20:40:36 2015, 美东)
San Francisco Board of Supervisors (SF-BOS) will be voting on the resolution
to establish a memorial honoring the victims of Japanese Sexual Slavery
during WWII on September 22 (Tuesday).
The resolution is Item #14 on the SF-BOS agenda. It is likely to be voted
early on -- e.g. around 3:00PM.
http://sfgov.legistar.c... 阅读全帖 |
|
b********n
发帖数: 38600 | 4 Under international law this case can be consider as kidnapping. Under
international law, any country is in a position to exercise jurisdiction
over a foreign national in accordance with its own domestic law. This holds
only when the country has plausible evidence that the targeted foreign
national has violated the criminal law of the country. International law
also requires that in such case the consular of the foreign country shall be
informed of the arrest and the reasons within a reasonable ... 阅读全帖 |
|
g********d
发帖数: 4174 | 5 Posted on Advocate.com March 15, 2011
81 Reps Condemn Obama's DOMA Stance
By Michelle Garcia
A House resolution with 81 Republican cosponsors, including Rep. Michele
Bachmann, condemns President Barack Obama for his decision to stop defending
section 3 of the Defense of Marriage Act in federal court cases.
Obama in February directed Atty. Gen. Eric Holder and the Department of
Justice to stop defending DOMA, which bans recognition of gay and lesbian
couples by the federal government, even if th... 阅读全帖 |
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g********d
发帖数: 4174 | 6 Posted on Advocate.com August 04, 2011 02:50:00 PM ET
American Psychological Association Supports Marriage Equality
By Julie Bolcer
In a move that holds potential to influence the ongoing legal and public
policy debate, the American Psychological Association unanimously approved a
resolution in support of full marriage equality.
The policy-making body of the APA voted 157 to 0 in favor of the resolution
Wednesday, on the eve of the professional organization’s annual conference
in Washington, D.C... 阅读全帖 |
|
h*****l
发帖数: 161 | 7 CNN) -- The American Psychological Association is calling on state and
federal officials to stop anti-gay legal measures and to legalize same-sex
marriage.
The scientific and professional organization's guiding body voted
unanimously at its annual meeting this week in Washington to declare its
support for "full marriage equality for same-sex couples."
The resolution "clarifies the Association's support for same-sex marriage"
in light of new research, the group said. A similar resolution in 2004
... 阅读全帖 |
|
m******n
发帖数: 6327 | 8 Christie干得不错:
Christie Administration takes Action to Eliminate Abuse and Wasteful
Spending at NJ Turnpike Authority and South Jersey Transportation Authority
Action by administration leadership promotes best practices and responsible
management of taxpayer and tollpayer dollars
(Trenton) - New Jersey Turnpike Authority Chairman James Simpson and
Turnpike Authority Executive Director Ronnie Hakim today outlineda series of
reform measures the agency is proactively implementing to combat abuse and... 阅读全帖 |
|
t***h
发帖数: 5601 | 9 【 以下文字转载自 Military 讨论区 】
发信人: davidwright (davidwright), 信区: Military
标 题: Ron Paul反对谴责朝鲜
发信站: BBS 未名空间站 (Thu Dec 9 12:23:24 2010, 美东)
http://paul.house.gov/index.php?option=com_content&task=view&id=1800&Itemid=60
Mr. Speaker, I rise in opposition to this saber-rattling resolution that
unnecessarily escalates tensions between North and South Korea and may in
fact put US troops stationed in the area at risk.
As the resolution states, the “USS George Washington Carrier Strike Group
is conducting... 阅读全帖 |
|
l****z
发帖数: 29846 | 10 Democratic Senate budget chairman reverses course, will not offer budget
this year
BY: Andrew Stiles - April 17, 2012 6:08 pm
Senate Budget Committee chairman Kent Conrad (D., N.D.) will not draft a
Democratic budget before the 2012 election, he announced Tuesday.
Instead of going through the traditional markup process in the committee,
Conrad said he would introduce the 2010 report drafted by the Bowles-Simpson
fiscal commission, and then indefinitely delay a vote in order to allow
time for ... 阅读全帖 |
|
g*********n
发帖数: 808 | 11 The South will rise again：SCA 5激怒南加州
SCA 5: Democrat Bill to Make 2013 California Into 1956 Alabama—Makes
Discrimination LEGAL and Mandated
Stephen Frank on 07/12/2013 · Comments (4)
The South will rise again!! And it has, in Sacramento. The Old Democrat
Party of the South has returned to be the Progressive Democrat Party of the
North and West Coast. Bigotry is the order of the day. Democrat Senator de
Leon wants to profile buyers of ammunition—bigot. Then you have Senator Ed
Hernandez, the man ... 阅读全帖 |
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p**o
发帖数: 3409 | 12 【 以下文字转载自 SanFrancisco 讨论区 】
发信人: pulo (／人◕ ‿‿ ◕人＼), 信区: SanFrancisco
标 题: ［紧急动员］旧金山市政厅9月22日表决慰安妇建碑动议，请大家到现场助威
发信站: BBS 未名空间站 (Mon Sep 21 20:40:36 2015, 美东)
San Francisco Board of Supervisors (SF-BOS) will be voting on the resolution
to establish a memorial honoring the victims of Japanese Sexual Slavery
during WWII on September 22 (Tuesday).
The resolution is Item #14 on the SF-BOS agenda. It is likely to be voted
early on -- e.g. around 3:00PM.
http://sfgov.legistar.c... 阅读全帖 |
|
a*****1
发帖数: 3817 | 13 自己去看美国宪法
United States Constitution
From Wikipedia, the free encyclopedia
Jump to: navigation, search
United States Constitution
Constitution of the United States, page 1.jpg
Page one of the original copy of the Constitution
Created
September 17, 1787
Ratified
June 21, 1788
Date effective
March 4, 1789; 227 years ago
Location
National Archives,
Washington, D.C.
Author(s)
Philadelphia Convention
Signatories
39 of the 55 delegates
Purpose
To replace the Articles of Confederation (1777)
This articl... 阅读全帖 |
|
t***h
发帖数: 5601 | 14 【 以下文字转载自 Military 讨论区 】
发信人: davidwright (davidwright), 信区: Military
标 题: Ron Paul反对谴责朝鲜
发信站: BBS 未名空间站 (Thu Dec 9 12:23:24 2010, 美东)
http://paul.house.gov/index.php?option=com_content&task=view&id=1800&Itemid=60
Mr. Speaker, I rise in opposition to this saber-rattling resolution that
unnecessarily escalates tensions between North and South Korea and may in
fact put US troops stationed in the area at risk.
As the resolution states, the “USS George Washington Carrier Strike Group
is conducting... 阅读全帖 |
|
m******c
发帖数: 1202 | 15 越大越好，我用的32G，查了下录像， 1200x720的精度好像只能录两个多小时，高速录
像精度不高，但是focus没受温度影响。我改成1920X1080了，估计录的时间更短，最高
可以到2440x1296?，时间就更短了，所以越大越好。
The YI claims to be able to record at resolutions up to 1296p with a frame
rate of 30fps, however this resolution appears to be interpolated. That said
, the camera is able to record high quality video at a resolution of 1080p
with frame rates of 30 or 60fps.
If you choose to record [email protected], make sure to use a high quality SD card
(the manufacturer suggest 80Mbps... 阅读全帖 |
|
l****q
发帖数: 765 | 16 我想卖的物品:10 台 ASUS K55A DH71 i7-3630QM
单张面值:
$700 from
可接受价格(必须明码标价！):
$600.00 OBO
物品新旧要求:
Brand new sealed
邮寄方式要求:
YL
买卖双方谁承担邮寄损失(Required if not code only):
Before me, after you.
付款方式说明:
BOA/chase/paypal/支付宝/billpay
其他补充说明:
广告的有效期:
Till gone
物品来源(Required for All Cards!):
Newegg
我的联系方式:
mitbbs
Warranty期限:
能否证明是合法的一手卡?(Required for All Cards!):
state and zip:
IL
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
Specifications & Dimensions
Product Overview:
Color: Brown
Laptop Ty... 阅读全帖 |
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s*****a
发帖数: 3387 | 17 上几天说 no problem to ship now..
today, it says:
You have received a payment that we believe may not have been authorized by
the PayPal account holder. Here are the details of the transaction we are
investigating:
-----------------------------------
Transaction Details
-----------------------------------
Buyer's name: R Estrella
Buyer's email: r l*[email protected]
Transaction ID: 7DU765
Transaction date: Aug 27, 2013
Transaction amount: $148.59 USD
Your transaction ID: 9PP40811UA9606544
Case number: PP-... 阅读全帖 |
|
r******k
发帖数: 34 | 18 BRAND NEW BOX PACKED
N97 Mini Smartphone UNLOCKED
THIS COMES WITH BUNDLE OF A CAR KIT - cellular phone holder for car, stereo
headset, car power adapter
RETAILS FOR $450, But I am sale it for $315.
General
Product Type Smartphone
Phone Design Slider
Integrated Components Digital camera, 2nd camera, FM radio, digital player,
GPS receiver
Antenna Internal
Width 2.1 in
Depth 0.6 in
Height 4.4 in
Weight 4.9 oz
Body Color Cherry black
Cellular
Technology WCDMA (UMTS) / GSM
Band WCDMA (UMTS) / GSM 850... 阅读全帖 |
|
r******k
发帖数: 34 | 19 BRAND NEW BOX PACKED
N97 Mini Smartphone UNLOCKED
THIS COMES WITH BUNDLE OF A CAR KIT - cellular phone holder for car, stereo
headset, car power adapter
RETAILS FOR $450
General
Product Type Smartphone
Phone Design Slider
Integrated Components Digital camera, 2nd camera, FM radio, digital player,
GPS receiver
Antenna Internal
Width 2.1 in
Depth 0.6 in
Height 4.4 in
Weight 4.9 oz
Body Color Cherry black
Cellular
Technology WCDMA (UMTS) / GSM
Band WCDMA (UMTS) / GSM 850/900/1800/1900
3G Mobile Bro... 阅读全帖 |
|
d*******y
发帖数: 171 | 20 Company: Freescale China (Tianjin)
Position Title: Customer Quality Engineer
Numbers of Reqs: 1
============================================================================
Company Description:
Freescale Semiconductor, Inc. is a global leader in the design and
manufacture of embedded semiconductors for the automotive, consumer,
industrial, networking and wireless markets. The privately-held company is
based in Austin, Texas, USA and has design, research and development,
manufacturing or sales op... 阅读全帖 |
|
p**o
发帖数: 3409 | 21 【 以下文字转载自 SanFrancisco 讨论区 】
发信人: pulo (／人◕ ‿‿ ◕人＼), 信区: SanFrancisco
标 题: ［紧急动员］旧金山市政厅9月22日表决慰安妇建碑动议，请大家
发信站: BBS 未名空间站 (Mon Sep 21 20:40:36 2015, 美东)
San Francisco Board of Supervisors (SF-BOS) will be voting on the resolution
to establish a memorial honoring the victims of Japanese Sexual Slavery
during WWII on September 22 (Tuesday).
The resolution is Item #14 on the SF-BOS agenda. It is likely to be voted
early on -- e.g. around 3:00PM.
http://sfgov.legistar.com/ga... 阅读全帖 |
|
d*******y
发帖数: 171 | 22 【 以下文字转载自 JobHunting 讨论区 】
发信人: dearpiggy (猪仙), 信区: JobHunting
标 题: 客户质量工程师职位----飞思卡尔中国（天津）
发信站: BBS 未名空间站 (Thu Jan 31 07:58:26 2013, 美东)
Company: Freescale China (Tianjin)
Position Title: Customer Quality Engineer
Numbers of Reqs: 1
============================================================================
Company Description:
Freescale Semiconductor, Inc. is a global leader in the design and
manufacture of embedded semiconductors for the automotive, consumer,
industrial, networking and wire... 阅读全帖 |
|
d*******y
发帖数: 171 | 23 【 以下文字转载自 JobHunting 讨论区 】
发信人: dearpiggy (猪仙), 信区: JobHunting
标 题: 客户质量工程师职位----飞思卡尔中国（天津）
发信站: BBS 未名空间站 (Thu Jan 31 07:58:26 2013, 美东)
Company: Freescale China (Tianjin)
Position Title: Customer Quality Engineer
Numbers of Reqs: 3
============================================================================
Company Description:
Freescale Semiconductor, Inc. is a global leader in the design and
manufacture of embedded semiconductors for the automotive, consumer,
industrial, networking and wire... 阅读全帖 |
|
i*******0
发帖数: 227 | 24 收到本州attorney general的回信。貌似他们会联系靶子店，但不具备法律裁决执行权
利。希望更多的人去投诉。
Thank you for contacting the Consumer Protection Division of State Attorney
General’s Office. Consumer complaints provide valuable information that our
office uses to identify patterns of unfair or deceptive practices that may
warrant enforcement of the Consumer Protection Act.
The complaint you submitted to our office regarding Target Stores was
reviewed and determined to be appropriate for the informal complaint
resolution services of... 阅读全帖 |
|
f*****y
发帖数: 303 | 25 1. Video Format
There are six different analog video formats: VHS, SVHS, VHS-C, SVHS-C, 8mm,
and Hi-8, and three digital video formats: DV, MiniDV, and D8. All formats
differ in their video resolution, recording times, and compatibility. MiniDV,
for example, uses a uniquely sized videotape, D8 records on standard 8mm video
tape, and some D8 camcorders can play back analog 8mm and Hi-8 tapes.
2. Resolution
If video quality is paramount, choose a camcorder with high resolution.
Resolution is dete |
|
t***3
发帖数: 778 | 26 可以。我还在等我新买的PC，还没试效果。
据说主要resolution要匹配。1080p电视机的resolution是1920X1080，看你的显卡能不
能支持这样的，否则Text不清楚或不Smooth。用HDMI接口连接。720p电视机的
resolution低一点，相应的要选不同显卡resolution。这只是听说，等我试了就知道了
，也打算用来看中文电视。 |
|
l*******e
发帖数: 1485 | 27 我刚搬到一个新的城市，于是在walmart网站上买过不少家具之类的东西。查账的时候
，突然发现walmart帐号里有两单iTune e-giftcard 的order, 不是我下的。一单被
walmart cancel掉，第二单成功，而且居然发了e-gift card到我的电子邮箱里！
我跟信用卡公司申诉，今天收到结果说，walmart提供了购买信息，以及已经把e-gift
card发到了我电子邮箱的记录。也就是说没有帮我argue成功。然后我又从order买单那
个地方发信给walmart，结果walmart推皮球，如所附。
难道这哑巴亏就这么吃定了？好恶心的walmart网购经历。不是在乎那$25，而是这个过
程好让人恶心。网购无数，居然被walmart给涮了一把。而且，我现在无论如何在
walmart上下单，都被walmart cancel掉。
*******************
Hi xxx,
Thank you for contacting Walmart.com regarding you needing to have the
refund processed for... 阅读全帖 |
|
W***n
发帖数: 11530 | 28 CR-V ES 1.5L
Automatic transmission5,500 mile
On February 23, 2018, my car which has 5500 miles on it, started making a
horrible noise and began losing power while on the highway. The noise
continued throughout the weekend. Honda and Toyota determined through video
chats and conference calls that the cams were destroyed in my engine. They
believe this had to do with fuel and oil mixing and getting into the engine.
Honda Corporate (800-999-1009) requested that Ashland Honda replace the head
of th... 阅读全帖 |
|
发帖数: 1 | 29 NIH-supported Postdoctoral Fellow Positions in Leukocyte Biology and
Immunology at the University of Connecticut School of Medicine (UConn Health)
Our laboratory is looking for motivated postdoctoral fellows to study
integrin activation and leukocyte trafficking in inflammatory diseases using
advanced microscopy, such as super-resolution microscopy, high-resolution
live-cell imaging, and intravital microscopy.
We work on primary human leukocytes, leukocyte-like cell lines, and gene-
edited mice ... 阅读全帖 |
|
发帖数: 1 | 30 NIH-supported Postdoctoral Fellow Positions in Leukocyte Biology and
Immunology at the University of Connecticut School of Medicine (UConn Health)
Our laboratory is looking for motivated postdoctoral fellows to study
integrin activation and leukocyte trafficking in inflammatory diseases using
advanced microscopy, such as super-resolution microscopy, high-resolution
live-cell imaging, and intravital microscopy.
We work on primary human leukocytes, leukocyte-like cell lines, and gene-
edited mice ... 阅读全帖 |
|
P******d
发帖数: 4272 | 31 。。。。。。
iPhone 5 TouchID broken by Chaos Computer Club
Sticky fingers point to ancient hack giving Apple a five-finger discount
By Richard Chirgwin, 22nd September 2013
6
RELATED STORIES
Teardown Deep inside the iPhone 5s lurk a few surprises
PEAK APP: After 2013, you'll NEVER again install as many – Gartner
Something for the Weekend, Sir? WHY do phone cams turn me into a clumsy twat
with dexterity of an elephant?
First look: Apple iPhone 5S and 5C
Video Fanbois shun 'crappy plastic' iPhone 5C
p... 阅读全帖 |
|
f********t
发帖数: 6999 | 32 walmart.com这几年被老印占领了，从高层到底层乌漾无恙的招进去。
【 以下文字转载自 shopping 讨论区 】
发信人: lionphone (It\'s good!), 信区: shopping
标 题: 邪恶的沃尔玛网购
发信站: BBS 未名空间站 (Fri Sep 28 18:41:53 2012, 美东)
我刚搬到一个新的城市，于是在walmart网站上买过不少家具之类的东西。查账的时候
，突然发现walmart帐号里有两单iTune e-giftcard 的order, 不是我下的。一单被
walmart cancel掉，第二单成功，而且居然发了e-gift card到我的电子邮箱里！
我跟信用卡公司申诉，今天收到结果说，walmart提供了购买信息，以及已经把e-gift
card发到了我电子邮箱的记录。也就是说没有帮我argue成功。然后我又从order买单那
个地方发信给walmart，结果walmart推皮球，如所附。
难道这哑巴亏就这么吃定了？好恶心的walmart网购经历。不是在乎那$25，而是这个过
程好让人恶心。网购无数，居然被walmart给... 阅读全帖 |
|
|
l*****o
发帖数: 19653 | 34 。。。。。。
照相机的像素，就是ccd sensor的数量，这个没什么好说的。每个ccd element就像一
个计数器，他的功能就是数有多少电子（光子，根据光电效应）在其中。。。
CCD的尺寸确实因为品牌不同而不同，但绝对不会有1平方寸和10平方寸那么远的差距。
我并不是狠确定那些厂家是否自己生产ccd，我猜想应该都是买的。如果你能证明每个
厂家都自己产ccd，我会狠吃惊。。。
没错，resolution是那么定义的。但不要忘记，beam optics是可逆的，也就是说，在
objective plane上的一点，要对应image plane上的一点，反之亦然。 当image plane
上两点之间间距小于diffraction limit所定义的尺寸（由diffraction limit(degree)
和于透镜的距离决定）时，同样，也就意味着它们所对应的objective plane上的两个
点不能被resolve。
换句话说，当由ccd像素大小决定的两个采样点间距小于由diffraction limit和景物距
离决定的resolution时，objective plane上的... 阅读全帖 |
|
b*s
发帖数: 82482 | 35 请不要把CCD和CMOS厂家跟照相机厂家混为一谈。
成像系统的像素密度需要跟Nyquist采样率匹配才有效果，而Nyquist跟成像平面上的根
据镜头数值孔径和放大倍数所得到的像size有关。像素密度是需要相机厂商来选择的，
就像是轮胎是汽车厂商要选择搭配发动机的。但是轮胎厂商可以是独立厂商，所生产的
产品并不跟发动机直接联系，就像是CCD和CMOS厂商跟镜头厂商并不直接联系。照相机
厂商来决定正确的搭配和选材，正如汽车厂商要确定轮胎和发动机的搭配一样。
成像质量，特别是低光条件下的成像质量，跟CCD的full-well capacity还是很有关系
的，而full-well capacity跟CCD表面积直接相关，另外CCD的灵敏度还跟back-
illumination相关，虽然这个很少用在consumer级别的产品上。
另外，现在的CMOS芯片应用很广了，佳能的好几代产品都是CMOS主打了，CCD一统天下
的时代已经过去。CMOS现在已经进入Scientific-grade market了……
。。。。。。
照相机的像素，就是ccd sensor的数量，这个没什么好说的。每个c... 阅读全帖 |
|
l*****o
发帖数: 19653 | 36 resolution从来都不是仅仅由镜头决定的！
镜头只决定diffraction limit和aberrations，也就是成像的过程。而在image plane
所成的像，必须也只能由detector转化为电信号（无论是ccd还是cmos还是化学反应）
。。。
当这些detector的数量比较小的时候，resolution就是由detector的数量决定；当这些
detector的数量达到一定数目，使其间距等于或者小于optics所能成像的最小尺寸时（
针对objective plane上的一个点！），那么resolution就完全由镜头和aberrations决
定。。。
这类似于lithography里面光学系统和photoresist之间的关系：一定的波长，一定的NA
就会需要一定的resist performance，否则，你用193nm去曝光i-line photoresist，
就一定很悲剧。。。
我虽然没有专门做过FSO，但是好歹也整过几个DOE器件，对什么决定resolution还是知
道的。。。 |
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b*s
发帖数: 82482 | 37 感光芯片只要符合在焦平面上所成像的解像度的Nyquist采样率既可，而焦平面上的像
的resolution只是跟光学系统有关，跟电子系统无关。只要选择的芯片的空间频率足够
高，即可匹配镜头的resolution，否则，就浪费镜头的resolution或者是浪费了芯片的
空间频率。
波长跟resolution，唯一跟光学系统相关，而不是跟数字转换芯片有关，正如汽车的马
力跟发动机相关，而不是轮胎。
感光芯片跟噪声，读取速度，和动态范围和响应有关，但是跟defraction limit无关，
只要选择的大小匹配镜头的分辨率即可。
plane
NA |
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b*s
发帖数: 82482 | 38 resolve是光学系统的事，匹配这个resolution是imager的事情，明白了？
我说了等同了么？我说的是匹配！
轮胎厂家对于汽车的performance也是有贡献的。
哥哥，resolution resolution，你不resolve哪儿来的resolution?????
如果在image plane成像就等同于把这个像resolve成信息，那这个世界就太简单了吧？
你这让多少半导体器件的研发人员情何以堪啊？？？？ |
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b*s
发帖数: 82482 | 39 这不就是用imager匹配光学系统的分辨率么？只要imager的空间频率能够匹配光学系统
的成像就行了啊，过高的空间频率是empty放大。
光电转换的过程本身，对于分辨率没有任何影响，有影响的是空间频率，就是焦平面上
的像素大小本身……
resolution从来都不是仅仅由镜头决定的！
镜头只决定diffraction limit和aberrations，也就是成像的过程。而在image plane
所成的像，必须也只能由detector转化为电信号（无论是ccd还是cmos还是化学反应）
。。。
当这些detector的数量比较小的时候，resolution就是由detector的数量决定；当这些
detector的数量达到一定数目，使其间距等于或者小于optics所能成像的最小尺寸时（
针对objective plane上的一个点！），那么resolution就完全由镜头和aberrations决
定。。。
这类似于lithography里面光学系统和photoresist之间的关系：一定的波长，一定的NA
就会需要一定的resist performance，否则，你用193nm... 阅读全帖 |
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A****a
发帖数: 460 | 40 2700 lumens
native resolution 1024 x 768
对比度10000:1
我用过Epson EX7210，其参数为：
Native Resolution: 1280 x 800 (WXGA)
2800 lumens
对比度3000:1
虽然Acer这个resolution比epson低一点，不过玩wii已经足够了。因为wii的
resolution低于Epson ex7210. 大家觉得acer这款会不会因为对比度高会显示效果更好
一点？ |
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A****a
发帖数: 460 | 41 2700 lumens
native resolution 1024 x 768
对比度10000:1
我用过Epson EX7210，其参数为：
Native Resolution: 1280 x 800 (WXGA)
2800 lumens
对比度3000:1
虽然Acer这个resolution比epson低一点，不过玩wii已经足够了。因为wii的
resolution低于Epson ex7210. 大家觉得acer这款会不会因为对比度高会显示效果更好
一点？ |
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N**i
发帖数: 3857 | 42 完整EXIF:
Dates
Taken on August 27, 2011 at 7.44am EDT
Posted to Flickr August 27, 2011 at 5.09PM PDT
Exif data
Camera Canon EOS 7D
Exposure 0.002 sec (1/500)
Aperture f/6.3
Focal Length 90 mm
ISO Speed 200
Exposure Bias 0 EV
Flash Off, Did not fire
Orientation Horizontal (normal)
X-Resolution 72 dpi
Y-Resolution 72 dpi
Date and Time (Modified) 2011:08:27 07:44:52
YCbCr Positioning Co-sited
Exposure Program Manual
Date and Time (Original) 2011:08:27 07:44:52
Date and Time (Digitized) 2011:08:2... 阅读全帖 |
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s**********s
发帖数: 7387 | 43 well, given that 75/2.8 is a 645 lens and ZM 50/2 is a 135 lens, and that
they perform similarly in terms of resolution, i won't say FA75/2.8 is
really "good". Compared to Planar 80/2.8 for Rolleiflex or 80/4 or 75/3.5
for Mamiya 6/7, FA75/2.8 is certainly a mediocre performer (again in terms
of resolution).
but there are many things beyond resolution, tonality being one of them; and
many of these(e.g., tonality) are not even related with the resolution of
lense. |
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k****t
发帖数: 12697 | 44 其实这跟物场SPATIAL FREQUENCY 有很大关系.
这测试图的点/物距刚好在340 ALONE 的RESOLUTION CUTOFF 之外, 所以340 ALONE
BLOWN UP 后看上去比1.4X, 2X 差多了. 但在340+1.4X RESOLUTION CUTOFF 之内, 所
以1.4X加插值看上去不比2x差.
假如把相机移远3米, 马上就看出1.4x加插值和2x的差别.当然那时SPATIAL FREQUENCY
在1.4X 的RESOLUTION CUTOFF 之外, 340 ALONE加插值 看上去会不比1.4x差太多.如果
有个图有两个点阵,FREQUENCY 一个在ALONE 和1.4X之间, 另一个在1.4X 和2X之间, 就
全看清了.
所以镜头测试毛腻太多.用啥图/物距有讲究. 如果两个镜头差不太大,在图DETAIL 不是
太多时CONTRAST 更重要, CONTRAST 大的一眼看去比较明快,比较讨好,RESOLUTION上的
差异反映在EDGE 是不是SHARP, 但不会"秒杀". 如果选一区有DETAIL 刚好在两个镜头
的RESOLUTI |
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R***a
发帖数: 41892 | 45 imaging-resource自己可以找任意俩机器比样图，俩20M+的样图我就不连了
dpreview呢，没直接比d3x跟5d2，但是这俩都跟1Ds3比了，
5D2 vs 1Ds3是
two sensors from the same manufacturer (designed little more than a year
apart) with exactly the same resolution will produce resolution and
sharpness indistinguishable from each other.
两个没区别
D3x vs 1Ds3是
any differences in detail or sharpness are mostly attributable to the optics
on the front of the camera and the D3X's slight resolution advantage.
承认d3x resolution advantage |
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k*******n
发帖数: 190 | 46 看这个:
October 18: Body Ordered; Lens Research Begins
After trying out an A33 at my local Sony Style store and finding the
electronic viewfinder more than acceptable, I decided to order an SLT-A55V (
body only) from Crutchfield.com. Normally, I would have never thought of
Crutchfield as a place to shop for a DSLR camera, so I was surprised to find
out that it was not just the only retailer with A55 bodies in stock, but
also an authorized Sony distributor—perhaps as a result of all the Sony
audio g... 阅读全帖 |
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t***e
发帖数: 2138 | 47 The boring explanation Here follow some technical explanations: First of all
, my deepest apologies to those not familiar with mathematicsor physics…
But the conclusions are very interesting…. (see at the end) I did some
serious thinking to understand the rule of thumb of using a shutter speed
equal to the inverse of the focal distance. Here are the results: first some
(half-serious) maths: Let's start with the basic definitions and
assumptions: To simplify the calculations, we assume we can mod... 阅读全帖 |
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n**b
发帖数: 13203 | 48 Sensor Size Doesn’t Matter
Conventional wisdom says that the camera with the biggest sensor will be
the best. That’s such a gross oversimplification as to be almost a lie.
Conventional Wisdom
Conventional wisdom says that the larger the pixel sensor element size,
the cleaner and more noise free the image will be. Therefore, there has been
a trend over the last few years to increase the sensor size.
http://www.seriouscompacts.com/attachments/f42/1292d1304937734-
Almost all high end co... 阅读全帖 |
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l*****e
发帖数: 8596 | 49 一下试flicky里来的，那个是？
Taken on June 26, 2011 at 4.03pm EDT (edit)
Posted to Flickr June 27, 2011 at 1.33PM EDT (edit)
Exif data
Camera Canon EOS 60D
Exposure 0.004 sec (1/250)
Aperture f/2.8
Focal Length 50 mm
ISO Speed 100
Exposure Bias +1/3 EV
Flash Off, Did not fire
Orientation Rotate 270 CW
X-Resolution 72 dpi
Y-Resolution 72 dpi
Date and Time (Modified) 2011:06:26 16:03:16
YCbCr Positioning Co-sited
Exposure Program Aperture-priority A... 阅读全帖 |
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l*****e
发帖数: 8596 | 50 Camera Canon EOS 7D
Exposure 0.003 sec (1/320)
Aperture f/2.8
Focal Length 50 mm
ISO Speed 100
Exposure Bias +1/3 EV
Flash Off, Did not fire
Orientation Rotate 90 CW
X-Resolution 72 dpi
Y-Resolution 72 dpi
Date and Time (Modified) 2011:07:09 18:01:28
YCbCr Positioning Co-sited
Exposure Program Aperture-priority AE
Date and Time (Original) 2011:07:09 18:01:28
Date and Time (Digitized) 2011:07:09 18:01:28
Metering Mode Multi-segment
S... 阅读全帖 |
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