kindle paperwhite拔草……
http://www.douban.com/group/topic/33368930/豆瓣评测
考虑到paperwhite的确有很多让人长草的地方，以我个人观点K3用户多看看官网三星~四星的评测看看有哪些缺陷点让你提前做好准备，倒不是不舍得花这钱，实在是因为中外阅读习惯不太相同，阅读习惯导致了长期用这玩意到底舒不舒心……
再转一篇官网三星的测评：
*The Device NOT As Advertised*
The Kindle Paperwhite shown on the Amazon store website has a pure white screen with black text. Any reasonable person preparing to purchase this product would be under the impression that this is what you will receive. There is a comparison image that shows the Kindle Touch as compared to the Paperwhite and the difference in how the screen looks is astounding. The screen on the Touch looks grey and washed out and the screen on the Paperwhite looks bright and white like a piece of paper. These images of the Paperwhite are clearly simulated and not actual pictures of the Paperwhite screen. Kindle customers who purchased a Paperwhite have posted their own pictures of the Paperwhite so you can see the differences for yourself. I did not find out about these differences until my Paperwhite arrived the day after release.
*The Screen*
Screen is still grey like all other eink devices. The blue lights at the bottom of the screen make the screen appear to be a light blueish color, not white. The screen never looks white. This Kindle should not be called the Paperwhite. Maybe Paperbright or Paperblue would be more appropriate. The name alone leads you to believe it has a white screen. While it is somewhat lighter than the Touch it is not white by any stretch of the imagination.
*Page Refresh*
As with the Kindle Touch you have the ability to set the page refresh to occur with every page turn. This is supposed to take care of the ghosting problem associated with eink screens. When the Paperwhite refreshes it flashes the screen quickly from grey to black then back to grey again. This completely redraws the image on the screen. While this was an unobtrusive transition with the Touch it is not with the Paperwhite. The screen flash is so bright because of the light that it is a jarring transition. The result is something that looks like changing a television channel on old tube televisions. A bright flash then the screen change. It all happens very fast but if you are reading in the dark it is obnoxious and distracting. Ghosting does still occur and the effect is actually worse with the light making the image on the screen so obvious. It is a difficult choice to make when you have to choose between living with the ghosting and suffering the screen flashes.
*The Lights*
The text is not black as in the pictures on Amazon but a grey color. The text color becomes lighter as you turn up the light. So, more light means lighter text with less contrast. The lights are visible on the bottom of the unit (some more than others according to other reviews). According to Amazon the Paperwhite has "perfectly balanced whiteness", "exceptional lighting uniformity" and a "perfectly even distribution of light". This is not true. The distribution of the light is mottled and patchy, especially at the bottom of the screen. The bottom ¼ of my screen has patches that are light and dark. Whole screen is lit but it is not lit in a balanced or uniform way as promised.Some people can get past this but for someone that uses their kindle every day in all types of light; this is a huge glaring fault and not at all what was promised by Amazon. The other problem is that you cannot turn the light off. The lowest brightness setting should turn the light off. The lowest brightness setting is too bright for reading in a completely dark room. The intensity of the light at the 2nd to lowest brightness setting should be much dimmer than it currently is.
*Advertisements*
I paid the extra money to purchase a Kindle without advertisements. I believe it is completely worth the extra money. I am appalled to find that if I wish to utilize the cover view on my Kindle that I only have one row of books from my library. The bottom row is filled with "editor's picks". This is advertising. I paid for a Kindle without advertising. You can turn off the editors picks if you disable the Kindle store. Why do I need to disable the store to get rid of the editors picks? This is ridiculous. I should not be forced to see editor picks for books on my home screen.
*Conclusion*
While I think the Paperwhite could be a good device I do not think it is an amazing device. Amazon needs to be more realistic about what they promise. I have spoken to Amazon customer service and they are shipping me a new Kindle for an exchange. I doubt the new one (due to arrive next week) will be any better based on other customer reviews it seems that this is just how the Kindle is. If it arrives and is drastically different (no screen mottling at all and perfectly even light) I will post an update to my review.
I am a multi generation Kindle Owner. In addition to owning a Kindle 2, Kindle Keyboard, Kindle and Kindle Touch I have owned a Sony Ereader, Nook, and a Nook Simple Touch. So with that said I am very comfortable and familiar with ereaders and eink technology I currently own a Kindle Touch. In fact we have 3 of them in our household as we are all avid readers. Not only am I a big fan of Amazon (I am also a Prime member) I am a big fan of the Kindle over all other ereaders. I use my Kindle on average for about 2 hours a day during the week and 3 to 4 hours a day on the weekends. The Kindles in our home are used every single day. I love my Kindle Touch and am very disappointed with the Paperwhite. This is mostly due to the fact that things Amazon promised have not at all been fulfilled. I expected a grey eink screen with my Touch and I got it. I expected a white screen with my Paperwhite and I did not get it, not at all, not even close.
**UPDATE**
Replacement Kindle Paperwhite arrived today and the screen is even worse than the 1st one. The mottling is more pronounced on the replacement Kindle. Returning for a refund. Still so disappointed by this. Amazon customer serive told me that the lighting conditions were normal. Uh, OK, then can you send me the Kindle from the advertisements instead? Because THAT Kindle Paperwhite really is PAPER WHITE.
选择这位的评测主要是各方面都很可观，kindle各系列和很多别的电子墨阅读器都玩过来一遍了能对比感受。
既然PW打得旗号是背光，主要看这方面的优缺点就好了……
拔草点：
1.背光与对比度是负相关，背光一开高对比度就下来了（豆瓣那篇评测也有图片可以感受到）
2.背光不能完全关掉，即使最低亮度在黑暗中也显得过于刺眼（这点经常在深夜看手机的应该能体会到），再者就是一直开着对电池的损耗了
3.背光发蓝，光的分布也不均匀（但是比NOOK的那个技术好很多）总之不是PW←（这点难道是为了护眼什么的？）
4.取消媒体播放倒是对我没啥影响，但是实体翻页按键倒是一直觉得比触摸翻页好用，触摸翻页单手持有些容易误操（K3有感，touch用惯大大轻拍）
5.容量2G再加上系统占的空间，有些过于小了……这点在发布帖中也有很多人抱怨。虽然多了不一定能在下次连电脑前看完，但是松鼠党+懒惰星人仍然觉得…………
总之就是给大家来围观一下，之前发布帖不是有不少人长草么，权衡一下觉得没啥影响入了也无妨……不过我还是想等明年这个背光技术成熟了再说…… 2G……txt限定？
多少钱能入现在
回 1楼(aiyoyo) 的帖子
原生系统对中文各种编码的TXT支持实在算不上能舒心用的程度（很多时候需要对乱码显示的文件自行转换编码等等）……淘宝上貌似900~1000（自己随便搜来的价格）现在货源貌似挺紧张的，据说亚马逊卖疯了，所以等着一段过了应该能在800左右（原价750多）
________________________
编辑一下 不需要背光的话，买哪个 说是有背光分布不均的现象，观望一段再说 那是不是入kindle 5比较适合？ 2G除非是无脑塞漫画 换成TXT之类的一辈子不可能看的完 啥时候降回800多可以考虑买一个，现在淘宝炒到快1200就没必要跟风了
Re:回 1楼(aiyoyo) 的帖子
引用第2楼绿茶菠萝于2012-10-16 12:13发表的 回 1楼(aiyoyo) 的帖子 :原生系统应该是惯例不支持TXT的……淘宝上貌似900~1000
现在货源貌似挺紧张的，据说亚马逊卖疯了，所以等着一段过了应该能在800左右（原价750多） images/back.gif
你这是哪年的kindle
回 9楼(鸡蛋灌饼) 的帖子
kindle原生系统对各种中文txt的编码支持的一泡污，发转换邮件也太蛋疼了所以别误导新人啊同学！本来这几年来一直看的国外文献或者同人文都是以mobi和pdf居多的，所以只看英文绝对是原生系统更舒服，但你奈何到底是看中文的更多一些啊，网上档的各种txt编码都参差不齐怎么可能安心用原生看txt 哈哈哈买nook算了 塞漫画也没觉得不够用，除非你不改尺寸超大分辨率直接扔kindle曾经不支持txt？ K4原生系统就支持utf-8的txt吧，说不支持这……
回 13楼(neverer) 的帖子
那啥，我的意思是这种支持程度对囤积了一对txt文档的实用性约等于零……更不要说手动转换编码会造成很多乱码……歧义部分编辑掉了 求问这种看pdf舒服不舒服的？ too bright for reading in a completely dark room这个不能忍啊
Re:回 13楼(neverer) 的帖子
引用第14楼绿茶菠萝于2012-10-16 13:33发表的 回 13楼(neverer) 的帖子 :那啥，我的意思是这种支持程度对囤积了一对txt文档的实用性约等于零……更不要说手动转换编码会造成很多乱码……歧义部分编辑掉了 images/back.gif
先不说编码问题，你没有上calibre的习惯？
引用第15楼level0于2012-10-16 13:43发表的:
求问这种看pdf舒服不舒服的？ images/back.gif
有的（我）Kindle Touch都能忍
有的Kindle DXG都嫌不行
自己实际用了再说吧 keyboard妥妥再战2年
亚马逊你能弄一款K3的续航和翻页键，K4的体积+触屏，提升一下分辨率和灰度
这样就可以了，灯什么的交给皮套好了
回 17楼(鸡蛋灌饼) 的帖子
木有……我都是直接拖进去的，感谢推荐！我实在忍不了多看的字典功能现在换原生试试。pdf我觉得要看是哪种类型的，很多文献配图实在在电子墨屏上有很多问题（刷新速度还有字体大小），但是一般纯文字版我就觉得很舒服 背光刺眼的话就没有入的必要了 官网永远都是缺货…… 那贴楼主2手K3居然能卖70刀？ 已经等不及了买了K5 背光不能完全关掉？这个有点意外 买NOOK2去
Re:Re:回 13楼(neverer) 的帖子
引用第17楼鸡蛋灌饼于2012-10-16 14:20发表的 Re:回 13楼(neverer) 的帖子 :有的（我）Kindle Touch都能忍
有的Kindle DXG都嫌不行
自己实际用了再说吧 images/back.gif
用DXG看惯了mobi，PDF觉得字小，全转成mobi了，虽然格式都乱掉了 最近刚想入，这样看来还要继续观望一段时间？ 那个是前光不是背光，光不均匀等其他视觉瑕疵是有的，但是我不认为是大缺点，毕竟只是看字，而且整合了一个夜灯。我把没有drm的epub全转成azw3了，塞了大约600本进去，这样ipad就是漫画专用了，现在是随身携带，有了前光各种情况下看书都舒服很多。如果ipad mini的重量超过pw太多我估计还是双持。 看权贵论坛的测评背光不均那是正常的也就算了问题是这背光也要看运气，正常的是白色运气不好连这背光都是屎黄色的 还是k3原版带灯皮套最喜欢了~哪怕要k3将近一半的价格到现在还觉得超级值 引用第30楼Justice_jsj于2012-10-16 23:00发表的:
看权贵论坛的测评背光不均那是正常的也就算了问题是这背光也要看运气，正常的是白色运气不好连这背光都是屎黄色的 images/back.gif
不是说屎黄色更护眼么 K3继续用一段时间吧，反正还没坏，我看PW这打光技术初步摸索还是可以的（类似于不直射而靠漫反射？）只是还需要成熟一阵子 于是现在的节奏是应该入K3还是K5……
打算近期入KINDLE的求问 引用第34楼pkuworm于2012-10-18 14:13发表的 :
于是现在的节奏是应该入K3还是K5……
打算近期入KINDLE的求问 images/back.gif
别买K3，除非你真的很需要全键盘 我想买k5留钱买win8板，但是tgfc一堆kp秒杀啥啥啥的.... 我又想说那句话了 消费者都能80多块买个32g的tf卡
弄个2g的 你是要怎样 引用第37楼fumeflow于2012-10-18 18:52发表的:
我又想说那句话了 消费者都能80多块买个32g的tf卡
弄个2g的 你是要怎样 images/back.gif
只看书2G无论如何都够了，何况也干不了别的 引用第35楼scf22于2012-10-18 16:19发表的:
别买K3，除非你真的很需要全键盘 images/back.gif
k3翻页手感比K4好多了
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