Camera Analysis

Camera quality has almost always been Nokia’s strongest suite, and the Lumia 900 isn’t an exception. The device builds on the Lumia 800 by including the same 8 MP rear facing camera module with 28mm effective focal length (in 35mm ‘units’), F/2.2 aperture, Carl Zeiss branding, and built around a 5 plastic element optical system. Like a number of other new Nokia phones, the Lumia 900 also includes a 4:3 and 16:9 option with unique horizontal field of views for both. Switch into the 16:9 mode and you get a wider field of view which uses the full horizontal extent of the sensor at 7 MP (resolution), or use 4:3 mode at 8 MP (resolution) and use the full height of the sensor. For example, I've uploaded a photo of the same scene taken in roughly the same position with both 7MP (16:9) and 8MP (4:3) for your perusal.

Where the Lumia 900 builds on the Lumia 800 is inclusion of a 1280x720 (1 MP) front facing camera for video calling.

Like other Windows Phones with front facing cameras, the primary camera application can switch between the front and rear camera for shooting photos and videos, but on the front facing camera settings go away. The rear facing camera still includes all the settings options that I’ve seen on previous Lumias - recall that this is one of the Windows Phone menus that does change between vendors depending on their camera emphasis.

To tackle image quality, we've turned to our standard image testing suite which consists of photographs taken at five locations in our test bench (3-7), our lightbox tests with the lights on, and lights off, and photos of an ISO12233 chart, a GMB color checker card, and finally a distortion chart. I've also taken miscellaneous photos during my limited time with the Lumia 900 which I've put in a gallery below. 

The Lumia 900 ends up performing very close to the 800 (unsurprisingly) and has great optical quality. In the distortion chart there's limited distortion, and in the test bench photos things end up nice and sharp pretty much everywhere. It goes without saying that obviously Nokia continues to have a dominant position in the smartphone camera space, even when it isn't building phones around the camera like with the N8 or PureVision 808.

Where the Lumia 900 does seem to struggle is white balance, as pretty much all the Lumias have weird color rendering in the lightbox test with lights on, creating a strange washed out cast. I would wager that this is more an outcome of the older ISP onboard MSM8x55/APQ8055 than anything else, and it's entirely possible that things will get better in later updates as Nokia continues to mess around with the sliders on Qualcomm's ISP. In addition, the preview image sometimes contains the colored center dot chromatic aberration we've seen on other phones, though the lens shading ISP does seem to fix it when you look at the actual captured images. As an aside, this is really another area where eventually moving to dual core SoCs will make a difference - the successors to 8x55 have better ISP. 

Video quality on the Lumia 900 is very good. Video on the rear camera is encoded at 14 Mbps 1280x720 at 30 FPS in H.264 baseline with CABAC and 1 reference frame, as opposed to the CAVLC I’ve seen on a number of other devices. This is also a pretty high bitrate for 720p, and the result is subjectively very good quality. Note that none of the Windows Phones can record 1080p yet due to the devices all using single core Snapdragons whose encoder only can handle H.264 at 720p or below. Eventually we’ll see 1080p as Windows Phone adopts dual core SoCs with the rumored Apollo update which include 1080p encoders that will even encode high profile video. Audio on the rear camera is stereo AAC at 86 kbps with 48 kHz sampling, it’s good to see the Lumia 900 doing stereo audio using those two microphones onboard.

Front facing video is 1.5 Mbps VGA at 30FPS with the same audio quality. One thing I did notice about the front facing video is that it doesn’t seem to obey the rotation or orientation. Even if the camera UI is rotated properly, video shot on the front facing camera is always portrait orientation (480 x 640). This is pretty annoying but probably just a bug.

I’ve done the usual thing and uploaded samples straight from the device to YouTube, and made them available for download if you want to look at quality without YouTube’s transcode.

720p Rear Camera Video

 

VGA Front Camera Video

 

Again, the Lumia 900 video looks good even if it’s just 720p thanks to a generous bitrate, and inclusion of stereo audio is also a plus. Eventually Windows Phones will do 1080p30 video encodes, but that’s something which will come with even better SoCs.

Performance Analysis Display Analysis
POST A COMMENT

128 Comments

View All Comments

  • lunarx3dfx - Wednesday, April 4, 2012 - link

    I agree with edd. I recently bought a focus flash after using a Nexus S for almost a year, and even with ics the Nexus wasn't anywhere near as smooth as WP7 is. Sure, gpu acceleration helped, but there are other underlying problems in Android.

    That being said however, I will probably be getting the HTC ONE X or the US GSM Galaxy Nexus (if it ever launches) because the one area WP really lacks is in providing features for power users. It is a beautiful os, and as a whole I really enjoy it, but I miss being able to customize everything like I could on android.
    Reply
  • papatom - Wednesday, April 4, 2012 - link

    Besides there is a lot more that the underlying OS has to offer.
    Let's see how WP subjective performance changes (tanks?) when Microsoft adds all those features.
    They will bring the platform in-line feature wise, won't they?

    Another thing, as pointed by Exodite, is that the first crop of WP phones - at least reference ones - comes from Nokia, and is polished to the point OS permits.
    Reply
  • sprockkets - Wednesday, April 4, 2012 - link

    I'm at 1.2ghz and 768 memory with only around 400 available for me to use! Sure it's dual core, but again, the GPU does its job now.

    Here, read this from an actual developer of Android.

    https://plus.google.com/105051985738280261832/post...
    Reply
  • mutatio - Wednesday, April 4, 2012 - link

    Careful, Vision, that comes awful close to complimenting Apple's approach since day one of the iPhone. ;-) Reply
  • Exodite - Wednesday, April 4, 2012 - link

    Ah yes, the wonders of anecdotal evidence and conjecture.

    Incidentially I have an Android phone based on very similar hardware, an 1GHz Qualcomm S2 SoC, 512MB memory and a FWVGA display.

    And it runs absolutely beautifully.

    It's the SE arc though, kinda funny how the old guard in phones still seem to come up with some of the best solutions.
    Reply
  • designerfx - Friday, April 6, 2012 - link

    wow, really?

    do you understand the point of quad core? it's not performance, it's more power savings.

    WP is not more efficient than anyone - if you think it is the OS, you don't understand that probably 99% of the performance (positive or negative) is based on the chips in the phone and that's it.
    Reply
  • crispbp04 - Tuesday, April 10, 2012 - link

    You are clueless so please don't speak on subjects you have no idea about. Do you even know what a scheduling is? Maybe when you get an education some day after you graduate high school you'll understand how an operating system works.

    http://en.wikipedia.org/wiki/Scheduling_(computing...

    Saying performance is all hardware is like saying strengh is everything. try holding a 25lb weight 2 feet from you with your arms extended, then hold the same weight to your chest. What is easier?
    Reply
  • eddman - Tuesday, April 3, 2012 - link

    Why talk time and 3G web browsing battery times are so low, compared to phones with a similar display and a similar or smaller battery?

    Is this one of the pitfalls of using a dedicated baseband chip?
    Reply
  • Brian Klug - Wednesday, April 4, 2012 - link

    Basically that, and again that we're talking about (at least for the cellular page loading tests) the same display being the majority of power draw.

    The tethering results being so close surprised me, and I'm going to re-run the HSPA+ result just to see what was up there. Again very limited time on this review actually.

    -Brian
    Reply
  • Lonegunman2012 - Wednesday, April 4, 2012 - link

    Just a quick question: What is your rush to get the review out? I look to this site for thoroughly written reviews. It's disappointing that so much was left out. I would be happy to wait longer for a review to come out if it was complete. Reply

Log in

Don't have an account? Sign up now