So I just updated to stock 5.1 on my XT1039. I think the camera has improved a lot

Sure! I don't know how much of this is useful, so I'll post it all here:

Exif of IMG_20150613_163344923.jpg

File dirname /storage/sdcard1/DCIM/Camera

filename IMG_20150613_163344923.jpg

filesize 1,037 kb timestamp Sat Jun 13 16:33:45 GMT-03:00 2015

Exif (Android OS Exif Interface) DateTime 2015:06:13 16:33:45 ExposureTime 0.021 Flash 24 (on) FNumber 2.4 FocalLength 3500/1000 GPSAltitude GPSAltitudeRef
GPSDateStamp
GPSLatitude GPSLatitudeRef
GPSLongitude
GPSLongitudeRef GPSProcessingMethod GPSTimeStamp
ImageLength 1456 ImageWidth 2592 ISOSpeedRatings 125 Make Motorola Model XT1039 Orientation 0 (UNDEFINED) WhiteBalance 0 (auto)

Exif IFD0 Date/Time 2015:06:13 16:33:45 Make Motorola Model XT1039 Resolution Unit Inch X Resolution 72 dots per inch Y Resolution 72 dots per inch YCbCr Positioning Center of pixel array

Exif SubIFD Aperture Value F2.4 Brightness Value -1 Color Space sRGB Components Configuration YCbCr Contrast None Custom Rendered Normal process Date/Time Digitized 2002:12:08 12:00:00 Date/Time Original 2015:06:13 16:33:45 Digital Zoom Ratio 1 Exif Image Height 1456 pixels Exif Image Width 2592 pixels Exif Version 2.20 Exposure Bias Value 0 EV Exposure Mode Auto exposure Exposure Program Program normal Exposure Time 1046/50000 sec F-Number F2.4 Flash Flash did not fire, auto FlashPix Version 1.00 Focal Length 3.5 mm ISO Speed Ratings 125 Max Aperture Value F2.4 Metering Mode Average Saturation None Scene Type Directly photographed image Sharpness Low Shutter Speed Value 1/47 sec White Balance Mode Auto white balance

Exif Thumbnail Resolution Unit Inch Thumbnail Compression JPEG (old-style) Thumbnail Image Height 288 pixels Thumbnail Image Width 512 pixels Thumbnail Length 18942 bytes Thumbnail Offset 3578 bytes X Resolution 72 dots per inch Y Resolution 72 dots per inch

GPS GPS Map Datum WGS-84 GPS Version ID 2.200

Interoperability Interoperability Index Recommended Exif Interoperability Rules (ExifR98) Interoperability Version 1.00

Jpeg Component 1 Y component: Quantization table 0, Sampling factors 2 horiz/2 vert Component 2 Cb component: Quantization table 1, Sampling factors 1 horiz/1 vert Component 3 Cr component: Quantization table 1, Sampling factors 1 horiz/1 vert Compression Type Baseline Data Precision 8 bits Image Height 1456 pixels Image Width 2592 pixels Number of Components 3

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