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Old 08-07-2011, 08:59 PM   #1
lllbhzs395
 
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Default 转载十三款尼康镜头使用感觉(2)

七、尼克尔 AF DX Fisheye Nikkor ED 10.5mm F2.8G 鱼眼镜头
主要参数:
镜头结构 7组10片
最大光圈 F2.8
最小光圈 F22
最近对焦距离 14cm
视角 180° (对角线)
放大倍率 1:5
光圈叶片数 7
遮光罩 集成
镜头尺寸 63×62.5mm
重量 305g
是否支持全画幅:不支持
用于D40、D40x、D80和D200机身时:支持自动曝光、但在D40和D40x不支持自 动对焦
参考价格:5,500元
天漠点评:
这是一个使用率不高,属于可有可无的镜头,买了之后没有用过几次。以前没有超广角镜头时,可以通过NC或者 NX对鱼眼镜头拍的照片进行调整,改成超广角照片,但图象边缘经过拉伸之后,分辨率太差,所以后来 有了10-20之后,穷人因“十缺 ”而一生平庸,就不用这个功能了。
另外,从型号上看,这个鱼眼镜头APS-C画幅专用头,属于对角线180度全景镜头。但我怀疑,如果尼康今 后出全画幅,估计就会变成球形180度鱼眼镜头了。如果真是这样,可能就超值了。
优点:轻巧,好玩,景深极大,对焦不准时也经常能拍出清晰的照片。
缺点:镜头盖太低档,形象太差。成像似乎有些暗,要进行少量曝光补偿。
小窍门:尽管该鱼眼镜头放在D40和D40x机身上不支持自动对焦,但其实根本不构成任何问题。因为鱼眼的 景深极大,拍照时,不论远近,只要将对焦环放在无限远即可,也就是说根本用不着对焦。
有用链接:
八、尼克尔 AF Nikkor 85mm F1.4D(IF) 镜头
主要参数:
镜头结构 8组9片
最大光圈:F1.4
最小光圈 F16
最近对焦距离 85cm
滤镜口径 77mm
视角 28°30'(全画幅);18°50'(APS-C画幅)
放大倍率 1:8.8
光圈叶片数 9
遮光罩 金属、标配
镜头尺寸 80×72.5mm
重量 550g
是否支持全画幅:支持
用于D40、D40x、D80和D200机身时:在D40和D40x上不支持自动对焦
参考价格:7,400
天漠点评:
这是我最后买的几个镜头之一,从图片上看,这个镜头长得很不好看,有点儿配不上顶级人像头的光荣称号。另外 ,我很少拍人像,所以一直犹豫不决,电影台词掠影。不过买到手只有,立刻发现这个镜头超级棒。大光圈下拍人像虚化效果出色,在这方面是我所有镜头中最好的。 如果在开阔地带用于风景拍摄,也绝对不会让你失望,影像锐利,色彩鲜艳。加上一个两倍的增距镜也不会给画质 造成太大影响。夏天拿到湖边拍拍荷花,简直爽极了,绝对值得拥有!
优点:非常锐利,不亚于某些微距头,加上一个佳能500D的近摄镜之后,基本就可以当作微距镜头使用。色彩 好,饱和而鲜艳;金属镜身,坚固,手感好。
缺点:我很喜欢它的金属遮光罩,但由于是旋转结构,有时候会将附加镜一同取下来,所以不是很方 便。
九、尼克尔 AF-S DX Zoom Nikkor ED 18-55mm F3.5-5.6 G II 镜头
主要参数:
镜头结构 5组7片
最大光圈:F3.5-5.6
最小光圈 F22-38
最近对焦距离 28cm
滤镜口径 52mm
视角 76°-28°
放大倍率 1:3.2
光圈叶片数 7
遮光罩 无
镜头尺寸 70.4×74mm
重量 205g
是否支持全画幅:不支持
用于D40、D40x、D80和D200机身时:支持自动曝光、自动对焦
参考价格:约400元。好像没有单独出售,这是有人不愿买套机,将该头寄卖时的价格。
天漠点评:
这是我购买D40和D40x时所配的套头,起初对成像质量根本没抱任何希望,但试拍之后,效果不错,出乎预 料,谈一场为了结婚的恋爱。你敢天长,我就敢地久。以前没有用过任何所谓的“狗头”,这个18-55的成像质量使我相信了“狗头不狗”的说法。
有人在是否保留此头的问题上犹豫不决。我认为,出了它,也就是几百块钱,不如留着。塑料头自有塑料头的好处 ,轻便是其最大优势。冬天将它和D40或D40x一起装在大衣口袋里,将其作为顶级小数码使用,可以随时扫 街抓拍。
优点:ED镜片、超声波马达、成像出色,绝对超值!有一定的微距能力,加上一套最便宜的国产微距镜,居然能 在某种程度上代替微距镜头。
缺点:什么做工差啊、塑料镜身(轻便也不见得就是缺点)啊等缺点,对于这么低的价格和相对不错的成像质量来 说都不存在了。
十、适马 30mm F1.4 EX DC HSM 镜头
主要参数:
镜头结构 7组7片
最大光圈:恒定 F1.4
最小光圈 F16
最近对焦距离 40cm
滤镜口径 62mm
视角 45°
放大倍率 1:10.4
光圈叶片数 8
遮光罩 H715_01
镜头尺寸 76.6×59mm
重量 430g
是否支持全画幅:不支持
用于D40、D40x、D80和D200机身时:支持自动曝光、自动对焦
参考价格:3,030元
漠点评:
俺当时是花了3210块钱买的这个镜头,比现在买多花了200元。但问题不在于多花一点钱,而是镜头用了一 个月就坏了,后来花了40多天送去保修,但适马公司极其不负责,将没有修好点头又还给我。俺大怒,据理力争 ,最后从商家那里换了一个新头。因此,有了这段插曲之后,虽然时过境迁,但要想对于这个镜头说很多赞扬的话 ,实在不是一件容易的事。
首先,30mm/f1.4这一规格的产品不多,ralph lauren polo womens hoodie,尼康口镜头上几乎找不到任何替代产品,所以一上市便占据了奇货可居的特殊地位。现在,蔡司5 0/f1.4的价格只有3500元、尼康50/f1.4的价格只有2200元,尽管适马的这款30/f1.4的价格要3000多大洋,但买的人在抱怨价格高的同时,还是纷纷解囊。但不幸的是,适马公司经常辜 负大家的信任,不止一款镜头出现各种机械故障,让人颇感寒心。而更可怕的是,适马在诺大的中国居然只有上海 一家维修部,外地用户要保修,必须邮寄,往往来回需要四五十天。更让你无法忍受的是,也许是适马镜头返修太 多所致,维修人员已经不当回事,极不负责,coach 16820。我就是众多倒霉的外地用户之一,有兴趣了解详情者,可阅读我的专贴:我与适马30/F1.4镜头不愉快插曲的前前后后
由于这个30/14给我带来了太多的不愉快,我下决心就此打住,以后坚决不买任何适马产品。前些日子又有些心动,想等适马 的DP1小数码出来之后买一台,但一看到我的这个30/14,就立刻给自己敲警钟,告诫自己不要好了伤疤忘了疼。
从网友的投诉看,佳能口的适马头跑焦较多,但在尼康口上鲜有发生。尼康口适马头的主要问题是我遇到的那种由 于排线断裂造成光圈失灵。但适马镜头机械质量差绝对不是个案。因此,个人认为该头适合那些富于冒险精神的人 选购,即使冒险精神不够,至少也要是上海居民,expensive Polo,这样维修起来方便,如果适马公司耍赖,你可以亲自上门找他们讨个说法。
优点:如果您走运,没有碰上质量问题,成像效果还是不错的。我曾经分别用我的尼康变焦牛头17-55和这个30/14,用同等焦距和光圈,在同样拍摄环境对相同的拍摄对象进行过对比测试,这个30/14在色彩、清晰度等方面基本能达到17-55的水平。
该头在全开光圈F1.4时,成像也不是很肉。因此,大光圈的优势在博物馆、庙宇或者给婴儿拍照等不宜使用闪 光的场合下十分有用。另外,该头的色彩还原很好,背景虚化效果虽赶不上尼克尔的85/f1.4,但还过得去,照片看上去十分舒服。
缺点:在光线强烈的条件下严重过曝,必须减少曝光补偿至EV-0.7甚至-1,否则照片就会白 花花一片,polo womens big pony t shirts,而且这种过曝十分普遍,非个别现象。另外,D40和D40x的用户更要注意,因为这两种机身本身就有轻微 的过曝倾向,所以拍摄时要格外留心。
桶形畸变严重。由于我以拍风光为主,所以这个问题最近才发现。一般来说,广角镜头或多或少都有些镜头畸变, 而且对于数码照片来说,不难校正,但对一个属于标准焦距范围的镜头来说,就不能不是一种缺点了,何况这个标 头的价格不斐。
小提示:如果您是第一次使用F1.4大光圈镜头,看到照片不清晰时,一定要仔细判断到底是镜头跑焦,还是自 己技术不佳造成对焦不准所致。因为在F1.4之下,景深极浅,稍不注意,焦点略有错位,就会发 虚。
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Old 08-07-2011, 08:59 PM   #2
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teach you a word comfortably,



comfortably, not because many people do not stupid,ecco shoes, but did not find a simple exercise and practice. According to the standard fingering, look at the keyboard from A to accordance Z
order to play the 26 letters, you can learn up to seven days comfortably, the. The so-called standard fingering is in accordance with your hands on the keyboard under the map location
, that is on your left index finger on the letter F (F keys have a small protuberance, we usually call it comfortably, coordinates) , right index finger on the letter J
on the (J keys comfortably,ecco shoes clearance, also has a coordinate) and then align the four fingers were placed side by side on adjacent Jianniu.



the second part of the standard fingering finger \your four fingers of each hand
will align parallel and \The third part of the standard fingering tilt movement principles, namely, whether it is your left hand or right hand, all
to comply with the \That is,ecco outlet, the left index finger movement specification is 4 RFV a line, right index finger movement
7 UJM
specification is a line.



which the 5 TGB left index finger next to his left index finger to play by the same token, relying on his right index finger in 6 YHN four key play by the right index finger.
When you have an initial impression of the standard fingering the future, they can see the fingers on the keyboard division of the other Jianniu.
Typically, the keyboard usage is high, several other Jianniu include: Enter to confirm (enter) key, space bar, delete key (upper right corner of the keyboard
on the back space key) and double-click the key (shift).

space bar (also called a space bar) is the process of your most frequently used typing a function key, you can use two hands thumb as you knock on the (mostly
people like to use the right thumb, this limitation);
carriage return (confirm) key is the usage of the second function key, the right hand little finger play;
typing the delete key is in your frequency of use during the third function key, often used to typing error correction (deleted) , also knocked by the little finger of his right hand.
the so-called double-key (shift) is that when two characters on a Jianniu assisted selection keys when, as marked in figure 1 on! Is in your right hand small
mean pressure (sheft) key, the number 1 hit with his left little finger while playing out. What other things like @,: and so much more reasonable phase
the same, you see at the. It should be noted that, due to the need double-click the selected Jianniu about the number keys are distributed, so the
Double-click the following key in the keyboard layout is put a left and right, in order to facilitate you with good hands to play it out.
When you are familiar with these standards after fingering, and the rest is to follow the practice of the. That is, you can follow in English alphabetical order of looking at the 26 keys
disk in order to play them using standard tablature, practice a day, four-letter basis, up to 7 days comfortably, to basic exercises for your success .
practice in the process of typing, you can create on your computer inside a document and then repeated practice, during which not deliberate practice fast, man
fingers are very clever, when you practiced for some time, it will find their own that it should play key button, when you really familiar with
, the fast is just a logical thing, is the so-called \
(article by Mr. Kanto original, free reprint,)

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use all the keys on the keyboard

F1 help
F2 renamed
F3 search
F4 address
; F5 to refresh
F6 to switch
F10 menu
CTRL + A Select All
CTRL + C Copy
CTRL + X Cut
CTRL + V Paste
CTRL + Z Undo
; CTRL + O to open
SHIFT + DELETE to permanently delete
DELETE to delete
ALT + ENTER property
ALT + F4 Close
CTRL + F4 Close
ALT + TAB to switch
ALT + ESC to switch
ALT + SPACEBAR
CTRL + ESC Windows menu Start Menu
CTRL while dragging an item Copy the selected items
by dragging an item CTRL + SHIFT,ecco women shoes, press the Create Shortcut
Insert the CD into the CD-ROM drive, press the SHIFT key to prevent CD from automatically playing

Ctrl +1,2,3 ... starting from the left switches to 1,2 , 3 ... tags
Ctrl + A Select all contents of the current page
Ctrl + C to copy the currently selected content
; Ctrl + D to open the \br> Ctrl + F to open the \\Ctrl + K closed and locked except the current label of all labels
Ctrl + L to open the \; Ctrl + N to create a new blank window (change, Maxthon Options �� Tags �� New)
Ctrl + O to open the \or other document ...)
Ctrl + P to open the \added to the filter list \You can save the contents of the current page all)
Ctrl + T Tile all windows vertically
Ctrl + V Paste the clipboard contents of the current
Ctrl + W closes the current tab (window)
Ctrl + X Cut the currently selected content (generally used for text manipulation)
Ctrl + Y Redo just action (generally used for text manipulation)
Ctrl + Z undo the earlier action (generally used for text manipulation)
Ctrl + F4 Close the current tag (the window)
Ctrl + F5 to refresh the current page by page
Ctrl + F6 in order to move the open switch has time to label (window)
Ctrl + F11 to hide or show the menu bar
Ctrl + Tab to switch down a small menu items labels (window)
Ctrl + Enter domain name auto-completion
another: When when the input focus in the search bar for the highlighted keyword
Ctrl + drag or save the address of the link text or selected image to a specified folder
(save directory change, Maxthon Options �� Save)
Ctrl + Keypad '+' the current page to enlarge 20%
Ctrl + Keypad '-' reduce 20% of the current page
Ctrl + keypad '*' Restore the current page, zoom to the original size of the
Ctrl + Alt + S automatically save all the contents of the current page to the specified folder (the path can be saved change,ecco shoes womens, Maxthon Options �� Save)
Ctrl + Shift + Keypad '+' for all pages to enlarge 20%
Ctrl + Shift + Keypad '-' reduce all pages 20%
Ctrl + Shift + F the input focus to search bar
Ctrl + Shift + G off \; Ctrl + Shift + H to open and activate the settings on your home page
Ctrl + Shift + N opens a new window the address of the clipboard, if the clipboard as text,
; is called search engine search for the word (the search engine option, Maxthon Options �� Search)
Ctrl + Shift + S to open the \save the contents, the same as Ctrl + S)
Ctrl + Shift + W Close all label than locking tab (window)
Ctrl + Shift + F6 Press have time to open the page in order to switch back label (window)
Ctrl + Shift + Tab to switch up a small menu items labels (window)
Ctrl + Shift + Enter domain name auto-completion

Alt +1 to save the current form
Alt +2 save generic form
Alt + A start list of favorites


fast typing fingering exercises
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