半肾
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战斗力 鹅
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注册时间 2011-4-2
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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…… |
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发表于 2012-10-16 11:59
买NOOK2去
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