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Nokia 808 PureView Thread And Discussion |
fbloise
Joined: Dec 14, 2002
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From: London, UK
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A friend from Philippines got this accesory: a bluetooth camera shutter.
The good news it works with Camera Pro. The bad it doesnt work with the default camera app.
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mlife
Joined: Jan 16, 2003
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The good news is that I have camera pro.... The bad news is, I no longer care about the default camera. 
good find
[addsig] |
fbloise
Joined: Dec 14, 2002
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From: London, UK
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LOL, I ordered one. Will let u guys know more after receiving it.
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Sassho
Joined: Nov 03, 2007
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Mr. Winter shots by 808 with Camera Pro and Camera Mod apps - which one you like more? Difficult choice 
[ This Message was edited by: Sassho on 2014-05-08 19:50 ] |
mlife
Joined: Jan 16, 2003
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On 2014-05-08 13:00:22, fbloise wrote:
LOL, I ordered one. Will let u guys know more after receiving it.
please post model number and link... I too wish to order one 
[addsig] |
cu015170
Joined: Oct 26, 2010
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That's cool.. remote shutter control is always welcomed.
You know with cam pro you can have it continuously shoot in burst mode.. and you can set the number of burst shots to whatever you like  |
Bonovox
Joined: Apr 13, 2008
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On the same day as buying Beats Audio,Apple have taken on Head of Nokia Lumia. Looks like Apple wanna try take over in photography now
http://www.theverge.com/2014/[....]-hires-ari-partinen-from-nokia
He's obviously left for sunnier places
Phone?? What phone?? |
fbloise
Joined: Dec 14, 2002
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They will be all leaving. Only the ass kissers will stay in Microsoft Mobiles (I'm looking at you Juha).
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Bonovox
Joined: Apr 13, 2008
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Yeah they see an opportunity to use their talents in a bigger company & Apple they want to dominate don't they?? Imagine an iPhone with a Lumia camera type hump
Phone?? What phone?? |
cu015170
Joined: Oct 26, 2010
Posts: > 500
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Microsoft has had an issue with talent retention for years.. it has been leaking to Silicon Valley since the early 00s.. it will be very hard not to loose some people.
This guy was instrumental to the original pureview project along with Dinning.
Thanks to all of this I found out that himself and several other Nokia engineers wrote a whole paper on the oversampling showed in the masterpiece that is the 808 PureView
I just don't feel like paying $18 for it.. otherwise I am very interested to see what they have to say as this was and still is cutting edge stuff in terms of imaging.
http://spie.org/Publications/Proceedings/Paper/10.1117/12.2020064
I think I found a small extract out of it here: http://www.imagesensors.org/P[....]20Papers/13-1_071-Alakarhu.pdf
It basically deals with the ongoing pixel size vs. pixel density thing ... ultimately tho, the bottle neck is the sensor size and nothing else.
I find point 6 especially interesting which deals with sharpness
"6. Sharpness
Typically the goal in optimizing the camera
resolution is to match the pixel size with smallest
resolution element that the optical system is capable of
producing. In terms of sampling theorem, the pixel
pitch defines the spatial sampling frequency, fS, and
thereby Nyquist frequency, fN = ½*fS of the imaging
system. Nyquist frequency defines the frequency above
which aliasing can happen, but it doesn’t yet tell at
what frequency image details can be resolved. Optics is
typically matched with sensor resolution so that it is
capable of reproducing image details at spatial
frequency that corresponds to sensor fN / 2.
The sampling done by the image sensor itself is not ideal,
as pixels are not point elements but have a certain area
over which the obtained signal is averaged. In effect
this non-ideality acts as low-pass filter.
When capturing images of objects with repetitive
patterns higher than fN frequency defined by pixel pitch
of the image sensor, aliasing happens and this can be
seen as moiré effect. This is evident in luminance
channel at full sensor resolution, but with a Bayer
pattern sensor the sampling of R,G,B color channels is
lower than full sensor resolution and color moiré can
result at even lower frequency.
This leads to difficult tradeoff with the sensoroptics
matching: Reasonable goal is to have as good or
sharp optics as possible, but this is challenging if at the
same time there shouldn’t be frequencies above fN to
avoid aliasing. In many SLR camera systems optical
low-pass filters (OLPF) are used to achieve this effect,
but for when prioritizing high resolution it has been left
out from some models like Nikon D800E [3].
The problem with OLPF is that it adds cost,
thickess and also reduces sharpness, making it not
preferred for mobile phones. Aliasing can be reduced
by making the optics less sharp, but in this case the
nominal resolution of the sensor is not achieved. As a
summary, it is very difficult or impossible to capture
images that would have true 5 megapixel resolution
with a mobile camera that has only 5 megapixels. In
this case “true” refers to a situation where for an
example line pairs projected to an image plane at
exactly fN spatial frequency could be reproduced
accurately in the final image and without moiré.
Typically, in (mobile phone) cameras the image
that is produced by the optics is not bandwidth limited
so that no frequencies above the fN frequency wouldn’t
be present.
An example MTF curve of high-quality
optics designed for Nokia is shown in Figure 3. In this
figure three points are marked, the fN / 2 frequency for
1.4 μm pixel and for 3.8 μm pixel and in furthermore
the fN frequency for 3.8 μm pixel. These points have
been marked based on the example calculation where
we downscale 38 Mpix image to 5 Mpix, and the
corresponding pixel sizes would be 1.4 μm for 38 Mpix
and 3.8 μm for 5 Mpix. It can be seen that by
oversampling we can record details with good accuracy
(fN /2 of 1.4 μm pixel, ~180 lp/mm) at frequency that
would be clearly above the highest possible frequency
without aliasing (fN of 3.8 μm pixel, ~130 lp/mm) for
the “final” pixel size in 5 Mpix image.
As a conclusion, by using oversampling of the
optics it is possible to capture pixel sharp images
without aliasing."
good stuff
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fbloise
Joined: Dec 14, 2002
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From: London, UK
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Indeed good stuff, I'm always in favor of natural untouched photos. This is what we get with the 808PV photos. But right after the 1020, Nokia started playing with the saturation and tons of photos in good light condition ended up been too yellow or saturated.
Now, I don't even think for a second that Microsoft is interested in continuing the Pureview camera research. They are all about good offers in U.S.A. only and have a presence in the mobile market. Nothing more. I mean, the 1020 doesnt do things the 808 does. And if we talk about WP, tell me one thing iOS or Android dont do that WP does. They all do everything and more. WP = no future.
Lately I've been looking for a good replacement for my 808. Can't seem to find one. Guess I will keep it for longer.
And hope Apple (which I really like) launches a good camera on the next iPhone revision.
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fbloise
Joined: Dec 14, 2002
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From: London, UK
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cu015170
Joined: Oct 26, 2010
Posts: > 500
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^ very cool!
Like I've said a few times already but you can easily push the 808 into the 11-13Mpix range and still retain very good IQ in good conditions
On 2014-05-09 22:38:07, fbloise wrote:
Indeed good stuff, I'm always in favor of natural untouched photos. This is what we get with the 808PV photos. But right after the 1020, Nokia started playing with the saturation and tons of photos in good light condition ended up been too yellow or saturated.
Now, I don't even think for a second that Microsoft is interested in continuing the Pureview camera research. They are all about good offers in U.S.A. only and have a presence in the mobile market. Nothing more. I mean, the 1020 doesnt do things the 808 does. And if we talk about WP, tell me one thing iOS or Android dont do that WP does. They all do everything and more. WP = no future.
Lately I've been looking for a good replacement for my 808. Can't seem to find one. Guess I will keep it for longer.
And hope Apple (which I really like) launches a good camera on the next iPhone revision.
I think that the saturation thing was probably related to popular demand to a certain extend.. to a lot of people the Symbian jpeg processing in the N8 and the 808 was a bit too neutral, it just doesn't pop in the default setting.
About MS and PureView... its their biggest differentiator for Lumia thus far. A lot of people won't even bother with WP if it wasn't for the camera tech, but yeah.. you are right.. they might not be interested in that all that much.
As far as apple, you won't see a big change in the 6 ... but we should start seeing the results of the new hire in the 7. Hiring someone like the guy from Nokia is a statement that they are serious about imaging. |
fbloise
Joined: Dec 14, 2002
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From: London, UK
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excelletn photos, that Buddha looks awesome!
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cu015170
Joined: Oct 26, 2010
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On 2014-05-11 21:52:34, fbloise wrote:
excelletn photos, that Buddha looks awesome!
Thanks!
And to answer your question, they are all with camera PRO simply because I like being able to use the full resolution of the sensor. So they are all taken at full res and then downsized to 11-12Mpix
Here is another one
note the fine detail around the tiny branches on that white background.. any other smartphone would make a complete mess out of them at that same resolution.
808 = |
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Posted: 2014-05-07 21:55
