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In Changsha, a filial daughter of 20 consecutive number of days in a coma in the mother due to sudden stroke hospital bed, to her place to tell their stories every day yesterday, the mother in a coma for several days finally opened his eyes.
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ID card original and copy, and an agent ID card, a copy can handle,mbt shoes clearance, my father never let someone else handle the formalities completed cards, ID cards are never away from the body, how to handle the meeting reviewed and through the card? Mr. am very puzzled. then press and easy to handle the case with Mr. Changle Road police station was informed that the medical insurance fund management center in Xi'an to the police station was originally issued in the name of an application for the old man card easily the corresponding procedures, These include an easy to the man's identity card and ID card copy of an agent. After investigation, the agency's easy to provide false old man identity card system. Agent's identity information is accurate, the police still under investigation. Currently, the Changle Road police station is fully cracked the case. public statements, said medical insurance card deposit vulnerability Mr. Yi believes that the responsibility of designated pharmacies and health insurance card and identification card cardholder agreement, is to prevent other people to take with a Medicare card. In this regard, Shaanxi Jinhua pharmaceutical branch of glass under the company's retail pharmacy leader of this large interpretation, if the guests have the password, they will let guests with a password consumption Moreover, the general know the password, the cardholder must be family members or relatives. Pharmacy no obligation there is no way to verify whether the cardholder is the card owner. public Wang said that in the pharmacy to buy medicine, the pharmacy will give the customer an account statements, shown above, have the cardholder name, card number and account balance, accidentally leaked a card to people's information, an opportunity for criminals. Wang suggested that the relevant departments, health insurance card can follow the bank card, the card number on the bottom statements or in the middle instead of a few tens of ※ Road to protect cardholder information. Police reminded the public to be vigilant and promptly changed the password health insurance card, Medicare card and safekeeping account statements, refrain from the health insurance card information with others. any intern reporter Zhang Lina Ling |
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| Back to logs list 139785 2010 年 05 月 31 日 22:35 Reading (loading. ..) Comments (0) Category: Personal Diary tags WINDOWS developing client experience jobs published cancel | Back to logs list |
解惑镜头型号之谜 佳能尼康镜头标识详解（佳能篇）
出处：pconline 2010年02月24日 作者：烧卖 责任编辑：liangjiaxian 佳能镜头型号解释 佳能镜头一般分为两大系列（佳能全画幅镜头是EF系列，非全画幅镜头是EF-S系列），上图便是其中的代表，我们可以看看两种型号有什么差别，详细解释请留意型号下面的号码 。 ① EF： 镜头系列名称，佳能的镜头卡口是EF卡口，中文全称是“全电子镜头接环（卡口）”，镜头与机身之间没有机械 传动结构，全部是以电子触点操作。（佳能全画幅镜头是EF系列，非全画幅镜头是EF-S系列） ② 70-200mm（15-85mm）： 这是镜头的焦距，有范围的（例如70-200mm）代表这是一只变焦镜头，没有范围、只有一个定值（例如50mm）代表这是一只定焦镜头。 ③ f/2.8（f/3.5-5.6）： 这是代表这只镜头在不同焦段的最大光圈值。如果变焦镜头的最大光圈值是一个定值（例如f/2.8）代表这是一只恒定光圈镜头，在镜头的广角端和长焦端都能保持一定的最大光圈；如果变焦镜头的最大光 圈值是一个范围值（例如f/3.5-5.6），前面一个数值代表该镜头在广角端的最大光圈，后面一个数值代表该镜头在长焦端的最大光圈,skechers shape up shoes。如果是定焦镜头，最大光圈是一个定值（特殊镜头除外）。 ④ L： 是英文luxury的缩写。如果在佳能镜头名称中带有“L”，则表示此镜头采用了佳能先进的技术和昂贵的材 料，具有极佳成像素质。L镜头的明显标志是镜筒上醒目的红圈。 ⑤ IS： 表示采用了IS（IMAGE STABILIZER）影像稳定器，即光学防抖功能。 ⑥ II： 代表相同规格镜头的第二代（优化改进版之类）。 ⑦ USM： 表示镜头的自动对焦是利用超声波马达为动力来源。 ⑧ EF-S： 佳能在EF系列镜头基础上，通过缩小镜头成像圈大小，适应APS-C（非全画幅）数码单反较小的感光元件。EF-S系列镜头有着较低的设计、制造成本，适合入门级数码单反使用（当然也有EF-S的高级镜头），但是EF-S镜头不能用在佳能全画幅单反上，会损坏镜头和机身。 除了在镜头型号上的标识，镜头特性或者功能都有不同的标识，部分也会出现在其他镜头的型号上，现在就让 我们来看看。 佳能镜头特性标识例子 1、 USM（超声波马达）： 通过将超声波振动转换成转动能源的这一崭新原理，实现了几乎没有操作声的静音镜头驱动马达。1987年，佳 能首次将之应用于EF 300mm f/2.8L USM，震惊了全世界的摄影师。而且，还以低耗电量实现了高效、高扭矩、高灵敏度的高速对焦。现在，几乎所 有EF镜头均配备USM。呈圆弧形、便于装入圆形镜头镜筒的环形USM，不仅结构简单，而且具有极为卓越的 驱动性能。在-30℃至+60℃的温度范围中，均可正常工作，从容应对严峻的拍摄环境。随后开发的是不受镜头口径限制的微 型USM。由于成本较低,shape up shoes，能在更多的镜头上应用，进一步扩大了通用性。并且，随着镜头本身的小型化，还开发出长度、重量均约为微型 USM一半的超微型USM II，有望普遍用于今后的微型变焦镜头。 2、 UD（超低色散镜片）： 佳能开发的UD(Ultra Low Dispersion=超低色散)镜片是具有低折射、低色散特点的光学镜片。两枚UD镜片几乎能获得与一枚 萤石镜片相等的高性能光学特性。佳能在开发了UD镜片后，再接再厉于1993年开发出大幅度提高UD镜片光 学性能的“超级UD镜片”。进一步地为镜头的高性能化和小型化做出贡献，广泛用于标准、远摄、超远摄等各种 镜头。 3、 IF/RF（内对焦/后对焦）： 是通过将镜头口径分为多个局部，移动最后部分或中间部分镜片群的对焦方式。另外，还在变焦镜头中应用后对焦 。对于变焦镜头，有用前镜片群以外的镜片群进行对焦的方式，以及将前群分为两个部分，用后半部分的镜片群进 行对焦的两种方式。并且，由于滤镜安装框架不会转动，所以拥有卓越的偏光滤镜操控性。 4、 全时手动对焦： 能够随时从自动对焦转换为手动对焦，配有环形USM(超声波马达)的所有EF镜头以及配有微型 USM的EF 50mm f/1.4 USM镜头都具有该项功能。 5、 IS（IMAGE STABILIZER，影像稳定器）： 拍摄时的一大障碍就是“抖动”。通常为了避免抖动，需要采用快于“1／焦距”秒的快门速度。但如果在光线较 暗的地方或使用低感光度手持拍摄时，就必须放慢快门速度，这样就容易使拍摄的画面模糊不清。因抖动导致镜头 偏移时，来自被摄体的光束就会与镜头的光轴产生偏差，导致图像模糊不清,shape ups skechers。通过向光轴的垂直平面方向移动光学系统，根据镜头的抖动程度调节移动量，稳定保持光束的状态，完成对影像 的补偿。检测抖动的是装在镜头内防冲击盒中的两个振动陀螺。并通过小型轻量、并拥有卓越反应性和控制性的移 动线圈，直接驱动补偿光学系统。而且，补偿光学系统的位置是通过IRED(红外线发光二极管)及PSD(位 置检测元件)检测、反馈控制的。另外，IS防抖单元内还装有在抖动补偿结束后将补偿光学系统固定在中央的锁 定机构。 6、 圆形光圈： 光圈叶片构成的形状接近正圆形，能让镜头焦外成像更圆滑，虚化更漂亮。 7、 浮动对焦： 一般镜头的设计，都在常用对焦距离处有最佳的像差矫正，却可能在最近拍摄距离时出现结像差的情形。采用浮动 对焦系统，可配合镜头伸出的长短，移动一整群镜片，可以让近距描写提升画质。主要是高端微距镜头采有这项技 术，在不同程度上移动同一光学系统内的镜片组,shape up skechers，在不同摄距及不同焦距的情况下拍摄，均能达到减低色散及猎取清晰影像效果。浮动对焦系统，在近距离拍摄中 达到最佳的画质，在微距镜和超广角镜上效果尤为突出。 8、 防尘防水滴： 采用了在镜头接口部位增加能堵塞与相机机身之间缝隙的橡胶垫圈的防水滴防尘结构；并在对焦环、焦点预设播放 环等可动部位也采取相应的防水滴防尘措施。此外，相机的操控面板以及背面的插装滤镜插槽的接口也使用了橡胶 材料，提高了相机细节部分的防水滴防尘性能。 9、 非球面镜片： 由于传统的球面镜片在光学上不可避免的存在一定的视觉缺陷（球面像差��正负镜度数越高，棱镜效果越明显。 即：光线向基底折射，物体向顶端位移）。为此现代镜片在设计中不断的革新，创造了新型的"非球面"设计。非 球面镜片的曲面不在是一个同一的曲率，即不在是一个球面。可以使镜片更薄,skechers tone ups，减少边缘像差。 10、萤石（Fluorite）镜片： 是由氟化钙(CaF2)结晶形成的。它明显的特征是折射率和色散极低，对红外线、紫外线的透过率好。但值得 关注的还有一点：它还具有一般光学玻璃无法实现的鲜艳、细腻的描写性能。因为光线通过一般透镜产生的焦点偏 离会出现颜色发散，使拍摄图像的锐度下降，我们称之为色差,skechers outlet。萤石镜片因为光的色散极少，几乎没有色差，所以最适用于摄影用的镜头。佳能在60年代末开发出萤石的人工 �晶生成技术，并在白镜头、超远摄L镜头系列中采用了萤石镜片。在单反相机镜头上使用萤石的只有佳能，因其 描写的细腻性和高对比度，得到了全世界摄影师的高度赞赏。 11、DO（多层衍射光学元件）镜片： 衍射光学元件与折射光学元件在色差上具有完全相反的性质。DO镜片通过利用这些性质，从理论上实现了色差为 “零”的镜头。佳能独自开发的双层结构DO镜片采用的是在玻璃镜片表面精密制成的衍射光栅以微米的精度互相 贴近形成的层叠结构。随着不断的研究衍射光学元件的材料、形状及构造等，佳能成功开发出由三层衍射光学元件 层叠形成的三层结构DO镜片。射入的光线中不再会发生不必要的折射光，光线几乎能完全用于拍摄，由此实现了 远摄变焦镜头的小型化。 12、SWC（亚波长结构镀膜）： SWC是SubWavelength Structure Coating的简写，这是一种采用不同于普通蒸气镀膜原理以防止光线反射的全新镀膜技术。镜头表面产生光 线反射现象，是由于镜片玻璃和空气边界处折射率发生突然改变引起的。反射能产生眩光和鬼影，影响图像画质。 为抑制光线反射，空气和玻璃之间的折射率应该逐渐减小。如果在空气和玻璃之间有一种能够平稳地改变折射率的 镀膜，那么进入镜头的光从空气到玻璃，或从玻璃到空气时，就不会产生很多的反射。这就是亚波长结构镀膜（S WC）的防反射原理。SWC在镜头表面形成一个小于可见光波长的楔形显微结构，这种结构能够持续改变折射率 ，从而消除折射率会突然改变的边界，能够实现比蒸气镀膜更理想的抑制反射效果。 |
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Reprinted from 970222830 at 16:56 on March 9, 2010 Reading (loading. ..) Comments (0) Category: Personal Diary No.3 men, women man, you make good on her, ; happiness is very small, winds will go. woman, you make good,coach women shoes, make good on their own,coach sneakers, fact, you are strong, not who can put you down. man, this world of beautiful please do not see a loved one. only one true love, lost, can not get it back. woman, this world is big, very safe. Many, many good people, next, the next one will be able to meet him, a very , very good to him. man, not until many years later to the emotion, that once her original love so true, so deep. woman, only one thing in this world is eternal, friendship will grow old, love changes, and only the family can be eternal. man to love a person let her know that women are naturally insecure creatures, Do not put love in my heart, to take the trouble to tell her you love her. women, some men are ineloquent, if in the middle of the night when he would pull it for you quilt, ; so , please believe it is more than roses. man, in fact,coach wallet, sometimes you are bad, can still have a fool love, love. woman, but sometimes you well,coach sunglasses, can still have aa fool does not appreciate. man, if, I mean if, if there is a woman said she, as you, such as life, you have to believe that it must be true. woman, if, if there is then a man will often see you see the ecstasy, or giggle, That, he absolutely fell in love with you. men, all women are strong,Heart depressed - Qzone log,coach shoes, and very fragile,阳阳语录1 - Qzone日志, and every woman is unique, crystal, ; Take good care of your own piece of crystal. woman, whom you may have hurt so and so, but do not be afraid, do not despair, ; dark still bright, sunrise is really beautiful. man,coach handbags, because you're a man, so your great responsibility, you very heavy burden, ; So we said, it must be honored. woman, not because you are a woman over-reliance, you independent, forever. sad to cry, but Kuwan,唐僧的家书！ （笑死不陪命） - Qzone日志, be sure to smile. woman used to label a man lies |
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