Rpi Camera Module

Introduction
The Raspberry Pi Camera board was released for sale on 14th May 2013. The initial production of 10k units sold out quickly. The camera contains a 5 MPixel sensor and connects via a ribbon cable to the CSI connector on the board. Subjective video and still image quality is good; it is better than a USB webcam of similar price.

Technical Parameters

 * Sensor type: OmniVision OV5647 Color CMOS QSXGA (5-megapixel)
 * Sensor size: 3.67 x 2.74 mm
 * Pixel Count: 2592 x 1944
 * Pixel Size: 1.4 x 1.4 um
 * Lens: f=3.6 mm, f/2.9
 * Angle of View: 54 x 41 degrees
 * Field of View: 2.0 x 1.33 m at 2 m
 * Full-frame SLR lens equivalent: 35 mm
 * Fixed Focus: 1 m to infinity
 * Video: 1080p at 30 fps with codec H.264 (AVC)

Because the focal length of the lens is roughly the same as the width of the sensor, it is easy to remember the field of view: at x meters away, you can see about x meters horizontally, assuming 4x3 stills mode. Horizontal field of view in 1080p video mode is 75% of that (75% H x 55% V sensor crop for 1:1 pixels at 1920x1080).

References: Focal length and f-stop measurements, depth of field & angle of view calculators sensor info   f-stop measurement

Sample Programs
Sample programs using the camera for taking stills and video have been developed for the Foundation and the source for these is available on github.

Forum user M1M1 published instructions on compiling the sample programs here

The command line parameters for the programs are as follows:

RaspiVid
RaspiVid Camera App

=
====== Display camera output to display, and optionally saves an H264 capture at requested bitrate usage: RaspiVid [options] Image parameter commands ‐?, ‐‐ help      :  This  help  information ‐w, ‐‐ width     :  Set image  width. Default 1920 ‐h, ‐‐ height    :  Set image  height. Default 1080 ‐b, ‐‐ bitrate   :  Set bitrate. Use bits per second (e.g.   10MBits/ s would be ‐ b 10000000) ‐o, ‐‐ output    :  Output  filename   (to write to  stdout,  use '‐o  ‐ ') ‐v, ‐‐ verbose   :  Output   verbose information  during  run ‐t, ‐‐ timeout   :  Time (in ms) before  takes picture  and  shuts down. If not specified,  set to  5s ‐d, ‐‐ demo      :  Run  a  demo mode (cycl e  through range of  camera options, no capture) ‐fps, ‐‐ framerate        :  Specify  the  frames  per second  to  record ‐e, ‐‐ penc      :  Display  preview image  *after*  encoding  (shows  compression artifacts) Preview parameter commands ‐p, ‐‐ preview   :  Preview window settings <'x,y,w,h'> ‐f, ‐‐ fullscreen:  Fullscreen preview mode ‐n, ‐‐ nopreview :  Do not  display  a  preview window Image parameter commands ‐sh, ‐‐ sharpness : Set image  sharpness ( ‐100  to  100) ‐co, ‐‐ contrast :  Set image  contrast ( ‐100  to  100) ‐br, ‐‐ brightness: Set image  brightness (0  to   100) ‐sa, ‐‐ saturation: Set image  saturation ( ‐100  to  100) ‐ISO, ‐‐ ISO     :  Set capture ISO ‐vs, ‐‐ vstab    :  Turn  on  video stablisation ‐ev, ‐‐ ev       :  Set EV compensation (-10 to 10) - range corresponds to  -3 stops to +3 stops ‐ex, ‐‐ exposure :  Set exposure  mode (see  Notes) ‐awb, ‐‐ awb     :  Set AWB mode (see  Notes) ‐ifx, ‐‐ imxfx   :  Set image  effect (see  Notes) ‐cfx, ‐‐ colfx   :  Set colour  effect (U:V) ‐mm, ‐‐ metering :  Set metering  mode (see  Notes) ‐rot, ‐‐ rotation:  Set image  rotation (0 ‐359) ‐hf, ‐‐ hflip    :  Set horizontal flip ‐vf, ‐‐ vflip    :  Set vertical  flip Notes Exposure mode options  : off,auto,night,nightpreview,backlight,spotlight,sports,snow,beach,verylong,fixedfps,antishake,fireworks AWB mode options : off,auto,sun,cloud,shade,tungsten,fluorescent,incandescent,flash,horizon Image Effect mode options : none,negative,solarise,sketch,denoise,emboss,oilpaint,h atch,gpen,pastel,watercolour,film,blur,saturation,colourswap,washedout,posterise,colourpoint,colourbalance,cartoon Metering Mode options : average,spot,backlit,matrix

RaspiStill
RaspiStill Camera App

=
======== Runs camera for specific time, and take JPG capture at end if requested usage:  RaspiStill  [options] Image  parameter commands ‐?,  ‐‐ help      :  This  help  information ‐w,  ‐‐ width     :  Set image  width ‐h,  ‐‐ height    :  Set image  height ‐q,  ‐‐ quality   :  Set jpeg  quality  <0 to  100> ‐r,  ‐‐ raw       :  Add  raw  bayer data  to  jpeg  metadata ‐o,  ‐‐ output    :  Output  filename    (to write to  stdout,  use '‐o  ‐ '). If  not specified,  no file is  saved ‐v,  ‐‐ verbose   :  Output   verbose information  during  run ‐t,  ‐‐ timeout   :  Time (in ms) before  takes picture  and  shuts down (if  not specified,  set to  5s) ‐th, ‐‐ thumb     :  Set thumbnail parameters  (x:y:quality) ‐d,  ‐‐ demo      :  Run  a  demo mode (cycle  through range of  camera options, no capture) ‐e,  ‐‐ encoding  :  Encoding  to  use for output  file (jpg,  bmp, gif, png) ‐x,  ‐‐ exif      :  EXIF  tag to   apply to  captures  (forma t as  'key=value') ‐tl,  ‐‐ timelapse:   Timelapse mode. Takes a  picture  every ms Preview parameter commands ‐p,  ‐‐ preview   :  Preview window settings <'x,y,w,h'> ‐f,  ‐‐ fullscreen:  Fullscreen preview mode ‐n,  ‐‐ nopreview :  Do not  display  a  preview window Image  parameter commands ‐sh, ‐‐ sharpness :  Set image  sharpness ( ‐100  to  100) ‐co, ‐‐ contrast  :  Set imag e  contrast ( ‐100  to  100) ‐br, ‐‐ brightness:  Set image  brightness (0  to   100) ‐sa, ‐‐ saturation:  Set image  saturation ( ‐100  to  100) ‐ISO,  ‐‐ ISO     :  Set capture ISO ‐vs, ‐‐ vstab     :  Turn  on  video stablisation ‐ev, ‐‐ ev        :  Set EV compensation (-10 to 10) - range corresponds to -3 stops to +3 stops ‐ex, ‐‐ exposure  :  Set exposure  mode (see  Notes) ‐awb,  ‐‐ awb     :  Set AWB mode (see  Notes) ‐ifx, ‐‐ imxfx    :  Set image  effect (see  Notes) ‐cfx, ‐‐ colfx    :  Set colour  effect (U:V) ‐mm,  ‐‐ metering :  Set metering mode (see  Notes) ‐rot,  ‐‐ rotation:  Set image  rotation (0 ‐359) ‐hf, ‐‐ hflip     :  Set horizontal flip ‐vf, ‐‐ vflip     :  Set vertical  flip Notes Exposure  mode options  : off,auto,night,nightpreview,backlight,spotlight,sports,snow,beach,verylong,fixedfps,antishake,fireworks AWB mode options : off,auto,sun,cloud,shade,tungsten,fluorescent,incandescent,flash,horizon Image  Effect mode options : none,negative,solarise,sketch,denoise,emboss,oilpaint,h atch,gpen,pastel,watercolour,film,blur,saturation,colourswap,washedout,posterise,colourpoint,colourbalance,cartoon Metering Mode options  : average,spot,backlit,matrix

The raspivid utility saves .h264 format files. Some programs need this in a .mp4 wrapper to use, which you can do in several ways. One is to use "MP4Box" which is in the 'gpac' package. sudo apt-get update sudo apt-get install gpac

MP4Box -add filename.h264 filename.mp4

RAW images
The raspistill --raw option will append RAW data to the JPEG. The RAW data contains the image direct from the sensor, before debayer and color processing. A simple tool called raspi_dng is being developed to convert the JPEG+RAW file into a standard Adobe DNG file.

Known Issues

 * Still captures did not use the full sensor, until the firmware update on 24 May 2013.
 * Images were 'flipped' (mirror image) by default, until the firmware update on 24 May 2013. (-hf and -vf options provide horizontal and vertical flips)
 * The -? (--help) did not work, until update on 24 May 2013.
 * The -n (--nopreview) command-line options originally did not work until a recent firmware update.
 * Correct EXIF data (including user supplied tags) are not being written to the output files.

This forum post summarizes the issues as at 24th May 2013

Camera not working at all
Make sure the flex cable is inserted the correct way on both ends, and each connector has the locking tab engaged. The RPi + camera draws about 260 mA more current when recording video, than without the camera. The Model B is about 550 mA by itself, so camera use pushes it over 800 mA. Some power supplies, cables, and polyfuses may not maintain 5V onboard at this current load well enough for reliable operation. You can check this with a voltmeter across TP1 and TP2.

In some cases, the micro-connector from the camera module to the camera board PCB has been loose, causing mis-operation. This has been fixed by removing and re-seating the small (tiny!) yellow flex cable connector labelled "P5V04A SUNNY" on the camera board.

Colored Banding or Flickering on video
This can be caused by a poor power supply, or bad power cable. Several people have fixed this by replacing the power supply, or the microUSB power cable.

Changing the ribbon cable
The ribbon cable that connects the camera board to the Pi is 15-core 1mm pitch ribbon cable. In the UK they can be sourced from http://www.toby.co.uk/content/catalogue/products.aspx?series=FFCx-xx-A-xx-xx where the required type is FFC1-15-B150105160MM. Other suppliers have been noted on eBay.

The Foundation has noted that the camera only passed EMI emissions testing with ribbon cable lengths of 15cm, although longer cables may also work. One user 'rew' reports a 4 m (13 foot) extension cable is working.

Adjusting Lens Focus
The camera is fixed-focus (at infinity) as delivered. The thread-locking glue dots can be scraped off allowing manual lens focus, as close as 6 cm, or complete removal of the lens allowing other optical systems. The lens thread size may be M6 x 0.35.

Macro, Wide, Tele adaptor lenses
The near focus point of the camera is about 1 meter as delivered. Without modification to the camera itself, it is possible to put a simple external lens in front such as reading glasses, SLR diopter ("close-up filter") or loupe to enable closer focus. For best results, put the additional lens very close to the camera lens.

Macro, Wide-Angle, and Telephoto adapter lenses designed for the iPhone 4/4s and similar devices will also work on the R-Pi camera. Depending on your configuration, properly mounting the accessory lens in front of the camera module may require some ingenuity. Focus becomes critical with a telephoto adapter, so success there may also require the manual focus modification.

Replacing Stock Lens
Changing the lens is a more significant and risky modification than simply adding an accessory lens. Richard Kinch has made an adaptor to mount M12 thread lenses on the R-Pi camera board, after unscrewing and removing the stock lens. Martin Miller has posted a guide on raspberrytorte.com describing complete camera module disassembly and replacing lens holder with a stock M12 unit. Various M12 x 0.5 (S-mount) lenses intended for board-level cameras are available at focal lengths from fisheye to long telephoto.

Removing IR Filter
The IR filter is rigid and glued to the bottom inside of the black plastic lens housing, requiring complete disassembly to remove. Two early attempts by RPi forum users M33P and scorp were initially successful, but in both cases the camera died soon afterwards from blunt trauma to the fragile bond wires on the die.

A RPi blog post (27 May 2013) has more description of this process with a video of the modification, and video from the resulting IR-enabled camera.

Housings
To help building your own camera board case or enclosure, a hand-measured mechanical drawing of the camera module is available, thanks to Gert van Loo. There is another drawing from raspberrypi-spy. There are some CAD files for housings and camera holders available on Thingiverse.