Register Guidelines E-Books Search Today's Posts Mark Forums Read

Go Back   MobileRead Forums > E-Book Readers > Amazon Kindle

Notices

Reply
 
Thread Tools Search this Thread
Old 09-24-2012, 07:19 AM   #1
joblack
Wizard
joblack ought to be getting tired of karma fortunes by now.joblack ought to be getting tired of karma fortunes by now.joblack ought to be getting tired of karma fortunes by now.joblack ought to be getting tired of karma fortunes by now.joblack ought to be getting tired of karma fortunes by now.joblack ought to be getting tired of karma fortunes by now.joblack ought to be getting tired of karma fortunes by now.joblack ought to be getting tired of karma fortunes by now.joblack ought to be getting tired of karma fortunes by now.joblack ought to be getting tired of karma fortunes by now.joblack ought to be getting tired of karma fortunes by now.
 
Posts: 1,745
Karma: 4382514
Join Date: Jul 2006
Location: Somewhere on earth
Device: Onyx Boox Tab X
Confusion about the Kindle PaperWhite

I have read a lot of information about the Kindle PaperWhite but some questions remain.

I do not intend to use the included light so will it be 'paperwhite' even if the artificial light is disabled? Does it have an improved eink display or does the higher contrast come from the artificial light?
joblack is offline   Reply With Quote
Old 09-24-2012, 07:20 AM   #2
HarryT
eBook Enthusiast
HarryT ought to be getting tired of karma fortunes by now.HarryT ought to be getting tired of karma fortunes by now.HarryT ought to be getting tired of karma fortunes by now.HarryT ought to be getting tired of karma fortunes by now.HarryT ought to be getting tired of karma fortunes by now.HarryT ought to be getting tired of karma fortunes by now.HarryT ought to be getting tired of karma fortunes by now.HarryT ought to be getting tired of karma fortunes by now.HarryT ought to be getting tired of karma fortunes by now.HarryT ought to be getting tired of karma fortunes by now.HarryT ought to be getting tired of karma fortunes by now.
 
HarryT's Avatar
 
Posts: 85,544
Karma: 93383043
Join Date: Nov 2006
Location: UK
Device: Kindle Oasis 2, iPad Pro 10.5", iPhone 6
The screen is still light grey, but the manufacturer states a 25% contrast improvement over a Pearl screen.
HarryT is offline   Reply With Quote
Advert
Old 09-24-2012, 07:21 AM   #3
pdurrant
The Grand Mouse 高貴的老鼠
pdurrant ought to be getting tired of karma fortunes by now.pdurrant ought to be getting tired of karma fortunes by now.pdurrant ought to be getting tired of karma fortunes by now.pdurrant ought to be getting tired of karma fortunes by now.pdurrant ought to be getting tired of karma fortunes by now.pdurrant ought to be getting tired of karma fortunes by now.pdurrant ought to be getting tired of karma fortunes by now.pdurrant ought to be getting tired of karma fortunes by now.pdurrant ought to be getting tired of karma fortunes by now.pdurrant ought to be getting tired of karma fortunes by now.pdurrant ought to be getting tired of karma fortunes by now.
 
pdurrant's Avatar
 
Posts: 71,406
Karma: 305065800
Join Date: Jul 2007
Location: Norfolk, England
Device: Kindle Voyage
Bear in mind that I don't think anyone has actualy got their hands on one to test yet, but I think that with the light off the eInk screen is no whiter than the current Pearl eInk screens.
pdurrant is offline   Reply With Quote
Old 09-24-2012, 07:21 AM   #4
pdurrant
The Grand Mouse 高貴的老鼠
pdurrant ought to be getting tired of karma fortunes by now.pdurrant ought to be getting tired of karma fortunes by now.pdurrant ought to be getting tired of karma fortunes by now.pdurrant ought to be getting tired of karma fortunes by now.pdurrant ought to be getting tired of karma fortunes by now.pdurrant ought to be getting tired of karma fortunes by now.pdurrant ought to be getting tired of karma fortunes by now.pdurrant ought to be getting tired of karma fortunes by now.pdurrant ought to be getting tired of karma fortunes by now.pdurrant ought to be getting tired of karma fortunes by now.pdurrant ought to be getting tired of karma fortunes by now.
 
pdurrant's Avatar
 
Posts: 71,406
Karma: 305065800
Join Date: Jul 2007
Location: Norfolk, England
Device: Kindle Voyage
And now you see why we'll have to wait for actual shipping units!
pdurrant is offline   Reply With Quote
Old 09-24-2012, 07:25 AM   #5
HarryT
eBook Enthusiast
HarryT ought to be getting tired of karma fortunes by now.HarryT ought to be getting tired of karma fortunes by now.HarryT ought to be getting tired of karma fortunes by now.HarryT ought to be getting tired of karma fortunes by now.HarryT ought to be getting tired of karma fortunes by now.HarryT ought to be getting tired of karma fortunes by now.HarryT ought to be getting tired of karma fortunes by now.HarryT ought to be getting tired of karma fortunes by now.HarryT ought to be getting tired of karma fortunes by now.HarryT ought to be getting tired of karma fortunes by now.HarryT ought to be getting tired of karma fortunes by now.
 
HarryT's Avatar
 
Posts: 85,544
Karma: 93383043
Join Date: Nov 2006
Location: UK
Device: Kindle Oasis 2, iPad Pro 10.5", iPhone 6
Quote:
Originally Posted by pdurrant View Post
And now you see why we'll have to wait for actual shipping units!
Remember that contrast is measured with a photometer - it's a purely objective measurement.
HarryT is offline   Reply With Quote
Advert
Old 09-24-2012, 07:31 AM   #6
joblack
Wizard
joblack ought to be getting tired of karma fortunes by now.joblack ought to be getting tired of karma fortunes by now.joblack ought to be getting tired of karma fortunes by now.joblack ought to be getting tired of karma fortunes by now.joblack ought to be getting tired of karma fortunes by now.joblack ought to be getting tired of karma fortunes by now.joblack ought to be getting tired of karma fortunes by now.joblack ought to be getting tired of karma fortunes by now.joblack ought to be getting tired of karma fortunes by now.joblack ought to be getting tired of karma fortunes by now.joblack ought to be getting tired of karma fortunes by now.
 
Posts: 1,745
Karma: 4382514
Join Date: Jul 2006
Location: Somewhere on earth
Device: Onyx Boox Tab X
Quote:
Originally Posted by pdurrant View Post
And now you see why we'll have to wait for actual shipping units!
You're right. My 'cannot wait eInk weakness'.
joblack is offline   Reply With Quote
Old 09-24-2012, 08:51 AM   #7
pdurrant
The Grand Mouse 高貴的老鼠
pdurrant ought to be getting tired of karma fortunes by now.pdurrant ought to be getting tired of karma fortunes by now.pdurrant ought to be getting tired of karma fortunes by now.pdurrant ought to be getting tired of karma fortunes by now.pdurrant ought to be getting tired of karma fortunes by now.pdurrant ought to be getting tired of karma fortunes by now.pdurrant ought to be getting tired of karma fortunes by now.pdurrant ought to be getting tired of karma fortunes by now.pdurrant ought to be getting tired of karma fortunes by now.pdurrant ought to be getting tired of karma fortunes by now.pdurrant ought to be getting tired of karma fortunes by now.
 
pdurrant's Avatar
 
Posts: 71,406
Karma: 305065800
Join Date: Jul 2007
Location: Norfolk, England
Device: Kindle Voyage
Quote:
Originally Posted by HarryT View Post
Remember that contrast is measured with a photometer - it's a purely objective measurement.
I agree that contrast is an objective measurement. I'm just not convinced that Amazon is an objective measurer, especially as there's been no announcement from eInk about an improved eInk version with 25% increased contrast.

I would be delighted if it were true.
pdurrant is offline   Reply With Quote
Old 09-24-2012, 09:47 AM   #8
geekmaster
Carpe diem, c'est la vie.
geekmaster ought to be getting tired of karma fortunes by now.geekmaster ought to be getting tired of karma fortunes by now.geekmaster ought to be getting tired of karma fortunes by now.geekmaster ought to be getting tired of karma fortunes by now.geekmaster ought to be getting tired of karma fortunes by now.geekmaster ought to be getting tired of karma fortunes by now.geekmaster ought to be getting tired of karma fortunes by now.geekmaster ought to be getting tired of karma fortunes by now.geekmaster ought to be getting tired of karma fortunes by now.geekmaster ought to be getting tired of karma fortunes by now.geekmaster ought to be getting tired of karma fortunes by now.
 
geekmaster's Avatar
 
Posts: 6,433
Karma: 10773668
Join Date: Nov 2011
Location: Multiverse 6627A
Device: K1 to PW3
Even the unlit kindle eink looks much more white with much blacker text (i.e. higher contrast) when viewed in direct sunlight, so internal lighting built into the Paperwhite should too.

Regarding a 25% increase, we must remember that eye sensitivity is non-linear (logarithmic), which must be taken into account when measuring perceived contrast differences. It cannot have improved contrast in all lighting conditions, because the internal lighting would be swamped by bright ambient or direct lighting, such as sunlight on the screen. In fact, the new capacitive touchscreen MUST detract slightly from the contrast (but perhaps not enough to be noticed by most people). Even the "microprinted light guide" must detract somewhat for some viewing conditions just because it is in the viewing path.
geekmaster is offline   Reply With Quote
Old 09-24-2012, 10:19 AM   #9
binhnt
Junior Member
binhnt began at the beginning.
 
binhnt's Avatar
 
Posts: 1
Karma: 10
Join Date: Sep 2012
Device: iPad
Quote:
Originally Posted by geekmaster View Post
Even the unlit kindle eink looks much more white with much blacker text (i.e. higher contrast) when viewed in direct sunlight, so internal lighting built into the Paperwhite should too.

Regarding a 25% increase, we must remember that eye sensitivity is non-linear (logarithmic), which must be taken into account when measuring perceived contrast differences. It cannot have improved contrast in all lighting conditions, because the internal lighting would be swamped by bright ambient or direct lighting, such as sunlight on the screen. In fact, the new capacitive touchscreen MUST detract slightly from the contrast (but perhaps not enough to be noticed by most people). Even the "microprinted light guide" must detract somewhat for some viewing conditions just because it is in the viewing path.
Hi geekmaster,

I have an iPad 2 which my brother gave me a year ago. It's a really good product for entertainment, but I've found it too heavy & big for reading purpose. I'm going to buy an Amazon's e-reader, so would you mind giving me an advice? Is the Paperwhite worth the money, or should I just buy a $69 version?
binhnt is offline   Reply With Quote
Old 09-24-2012, 10:36 AM   #10
ixtab
(offline)
ixtab ought to be getting tired of karma fortunes by now.ixtab ought to be getting tired of karma fortunes by now.ixtab ought to be getting tired of karma fortunes by now.ixtab ought to be getting tired of karma fortunes by now.ixtab ought to be getting tired of karma fortunes by now.ixtab ought to be getting tired of karma fortunes by now.ixtab ought to be getting tired of karma fortunes by now.ixtab ought to be getting tired of karma fortunes by now.ixtab ought to be getting tired of karma fortunes by now.ixtab ought to be getting tired of karma fortunes by now.ixtab ought to be getting tired of karma fortunes by now.
 
ixtab's Avatar
 
Posts: 2,907
Karma: 6736092
Join Date: Dec 2011
Device: K3, K4, K5, KPW, KPW2
Quote:
Originally Posted by binhnt View Post
Hi geekmaster,

I have an iPad 2 which my brother gave me a year ago. It's a really good product for entertainment, but I've found it too heavy & big for reading purpose. I'm going to buy an Amazon's e-reader, so would you mind giving me an advice? Is the Paperwhite worth the money, or should I just buy a $69 version?
The Paperwhite will ship in October. Nobody here has held one in his/her hands yet.
ixtab is offline   Reply With Quote
Old 09-24-2012, 10:42 AM   #11
geekmaster
Carpe diem, c'est la vie.
geekmaster ought to be getting tired of karma fortunes by now.geekmaster ought to be getting tired of karma fortunes by now.geekmaster ought to be getting tired of karma fortunes by now.geekmaster ought to be getting tired of karma fortunes by now.geekmaster ought to be getting tired of karma fortunes by now.geekmaster ought to be getting tired of karma fortunes by now.geekmaster ought to be getting tired of karma fortunes by now.geekmaster ought to be getting tired of karma fortunes by now.geekmaster ought to be getting tired of karma fortunes by now.geekmaster ought to be getting tired of karma fortunes by now.geekmaster ought to be getting tired of karma fortunes by now.
 
geekmaster's Avatar
 
Posts: 6,433
Karma: 10773668
Join Date: Nov 2011
Location: Multiverse 6627A
Device: K1 to PW3
@binhnt: The Paperwhite may get the same annoying bright spots on the display as the Nook Glowlight gets when the screen surface gets dented. I am getting one mostly so I can test my code on it (not for reading ).

Here are some photos of what to expect from a minor light guide surface damage:
http://www.the-digital-reader.com/20...he-new-nooklit

I am hoping that the Kindle Paperwhite has a harder surface and will not have the same problem as the Nook Glowlight. I will treat my Paperwhite with care and respect, just to avoid any possible problems such as that.

Just for reading, the $69 kindle seems like a great deal to me. It is even reported to have a much nicer screen (better quality control?) than the $79 K4. But only you can make that decision.

Last edited by geekmaster; 09-24-2012 at 04:53 PM.
geekmaster is offline   Reply With Quote
Old 09-24-2012, 10:57 AM   #12
HarryT
eBook Enthusiast
HarryT ought to be getting tired of karma fortunes by now.HarryT ought to be getting tired of karma fortunes by now.HarryT ought to be getting tired of karma fortunes by now.HarryT ought to be getting tired of karma fortunes by now.HarryT ought to be getting tired of karma fortunes by now.HarryT ought to be getting tired of karma fortunes by now.HarryT ought to be getting tired of karma fortunes by now.HarryT ought to be getting tired of karma fortunes by now.HarryT ought to be getting tired of karma fortunes by now.HarryT ought to be getting tired of karma fortunes by now.HarryT ought to be getting tired of karma fortunes by now.
 
HarryT's Avatar
 
Posts: 85,544
Karma: 93383043
Join Date: Nov 2006
Location: UK
Device: Kindle Oasis 2, iPad Pro 10.5", iPhone 6
Quote:
Originally Posted by pdurrant View Post
I agree that contrast is an objective measurement. I'm just not convinced that Amazon is an objective measurer, especially as there's been no announcement from eInk about an improved eInk version with 25% increased contrast.

I would be delighted if it were true.
The same figure is quoted by eInk - it's in the "News" section of their site - so I'm sure it's true. It would be too easy to disprove if not.
HarryT is offline   Reply With Quote
Old 09-24-2012, 11:10 AM   #13
Barbara1955
Non-Techy
Barbara1955 ought to be getting tired of karma fortunes by now.Barbara1955 ought to be getting tired of karma fortunes by now.Barbara1955 ought to be getting tired of karma fortunes by now.Barbara1955 ought to be getting tired of karma fortunes by now.Barbara1955 ought to be getting tired of karma fortunes by now.Barbara1955 ought to be getting tired of karma fortunes by now.Barbara1955 ought to be getting tired of karma fortunes by now.Barbara1955 ought to be getting tired of karma fortunes by now.Barbara1955 ought to be getting tired of karma fortunes by now.Barbara1955 ought to be getting tired of karma fortunes by now.Barbara1955 ought to be getting tired of karma fortunes by now.
 
Barbara1955's Avatar
 
Posts: 4,454
Karma: 15499273
Join Date: Feb 2011
Location: WV---USA
Device: Samsung Cell Phone & Amazon Fires & Kobo eReaders
Since the paperwhite has yet to be released... How can the person be making a True assement?
Barbara1955 is offline   Reply With Quote
Old 09-24-2012, 11:11 AM   #14
HarryT
eBook Enthusiast
HarryT ought to be getting tired of karma fortunes by now.HarryT ought to be getting tired of karma fortunes by now.HarryT ought to be getting tired of karma fortunes by now.HarryT ought to be getting tired of karma fortunes by now.HarryT ought to be getting tired of karma fortunes by now.HarryT ought to be getting tired of karma fortunes by now.HarryT ought to be getting tired of karma fortunes by now.HarryT ought to be getting tired of karma fortunes by now.HarryT ought to be getting tired of karma fortunes by now.HarryT ought to be getting tired of karma fortunes by now.HarryT ought to be getting tired of karma fortunes by now.
 
HarryT's Avatar
 
Posts: 85,544
Karma: 93383043
Join Date: Nov 2006
Location: UK
Device: Kindle Oasis 2, iPad Pro 10.5", iPhone 6
eInk manufactured the screen, so they can measure its contrast.
HarryT is offline   Reply With Quote
Old 09-24-2012, 12:03 PM   #15
pdurrant
The Grand Mouse 高貴的老鼠
pdurrant ought to be getting tired of karma fortunes by now.pdurrant ought to be getting tired of karma fortunes by now.pdurrant ought to be getting tired of karma fortunes by now.pdurrant ought to be getting tired of karma fortunes by now.pdurrant ought to be getting tired of karma fortunes by now.pdurrant ought to be getting tired of karma fortunes by now.pdurrant ought to be getting tired of karma fortunes by now.pdurrant ought to be getting tired of karma fortunes by now.pdurrant ought to be getting tired of karma fortunes by now.pdurrant ought to be getting tired of karma fortunes by now.pdurrant ought to be getting tired of karma fortunes by now.
 
pdurrant's Avatar
 
Posts: 71,406
Karma: 305065800
Join Date: Jul 2007
Location: Norfolk, England
Device: Kindle Voyage
Quote:
Originally Posted by HarryT View Post
The same figure is quoted by eInk - it's in the "News" section of their site - so I'm sure it's true. It would be too easy to disprove if not.
If you mean the top item on this page, that's just a copy of Amazon's press release.

If you mean the quoted text on this page that's just quoting from Amazon's press release.

If you mean this customer showcase, that's also clearly quoting the Amazon press release.

Note the bit that says "Uses E Ink Pearl Active Matrix Display". Follow that link and you can find the technical specifications for the Pearl display which have not changed.

I think the 25% increase in contrast is some tricky wording by Amazon. I think that without the front light, the eInk screen will have the same contrast as the entry level Kindle without a touch screen.

I would, as I say, be delighted to be wrong. But if E Ink really did have a new scren with 25% more contrast, they'd be shouting it from the rooftops, and it would be appearing in other manufacturers' devices, or they would be talking about an exclusive supply to Amazon.

That neither has happened makes me think it's marketing speak, not technical improvement.
pdurrant is offline   Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Kindle Paperwhite Marc_liest Amazon Kindle 360 01-17-2014 05:24 AM
Kindle Paperwhite vs. Kobo Glo maxbookworm Which one should I buy? 76 11-08-2012 11:20 AM
Kindle Paperwhite In Stores? Tinks Amazon Kindle 21 10-30-2012 06:12 PM
Kindle paperwhite support? cjobim Devices 3 10-02-2012 06:39 PM
sounds on kindle paperwhite malmhdy Amazon Kindle 1 09-10-2012 05:12 AM


All times are GMT -4. The time now is 06:40 PM.


MobileRead.com is a privately owned, operated and funded community.