Technology
 

SX200IS

From CHDK Wiki

The Powershot SX200 IS was released in march 2009.

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A beta version of CHDK is available for the SX200 with the following firmware versions: 1.00C, 1.00D → Download page

Contents






Powershot SX200 IS Color Options
Powershot SX200 IS Front
Powershot SX200 IS Back

[edit] Reviews and Specifications

[edit] Technical Data

  • Digic IV image processor
  • DryOS operating system
  • Sensor: 12.1 million effective pixels, 1/2.3 inch CCD type (max. image size: 4000 x 3000, phys matrix size 4080 x 3048 12bit)
  • 12x wide-angle (28mm) optical zoom lens 28 - 336mm (35mm equiv), F3.4-5.3
  • 3 inch LCD, 230,000 pixels
  • ISO 80-1600
  • 1280 x 720 @ 30fps [720P HD] movie recording
  • HDMI output
  • Power: rechargeable Li-ion battery NB-5L
  • Weight (without batteries): 220 g, Dimensions: 103 x 61 x 38 mm

[edit] Firmware info

[edit] Version information

In PLAY mode (without ver.req) press FUNCSET and DOWN simultaneously: 

Firmware Ver. 1.0.0.0

[ OK ]

In PLAY mode (empty file named ver.req must be previously created on card root) press FUNCSET and DOWN simultaneously: 

Canon PowerShot SX200 IS
P-ID:31C0 PAL D

Firmware Ver GM1.00C
NoError
Jan 28 2009 14:08:40

subsequent press of DOWN (while still holding FUNCSET) reveals: 

Canon PowerShot SX200 IS
P-ID:31C0 PAL D

Adj Ver.004.013

and another press of DOWN (while still holding FUNCSET) brings up this: 

Canon PowerShot SX200 IS
P-ID:31C0 PAL D

Adj Ver.004.013
IS FIrm Ver. 2.09
IS Param Vers. 2.07

the last press of DOWN (while still holding FUNCSET)with file named vers.req instead of ver.req brings up this: 

Canon PowerShot SX200 IS
P-ID:31C0 PAL D

Adj Ver.004.013
Total Shoot: (Number alternates with shots done)
Zoom Retry Count: 0
Mecha Condition: 0x00000000


[edit] CHDK Specifics

  • To enter CHDK <Alt> mode use the Print button
  • Custom Curves do not work with the SX200
  • The SX200 normally starts in Playback mode, to switch to Record mode half press the Shutter button once.
  • To start directly in Record mode, hold down the Power button ~ 2 seconds
  • Support for dual partition is available, so SDHC cards > 4GB can use autostart method.
  • Note that sound recording is always on when Optical Zoom is enabled in Video Record mode
  • To enable Optical Zoom during Video, set Digital Zoom = Standard in the Canon menu, set Enable Optical Zoom in the CHDK menu. Start recording, click zoom out lever then use optical and digital zoom as normal.
  • Shortcut Keys
     In Alt mode
     TOGGLE RAW                              DISPLAY Key
     In Half press shoot Mode  
     TOGGLE HISTO                             DOWN Key
     TOGGLE ZEBRA                            MENU Key
     TOGGLE OSD                                RIGHT Key
     TOGGLE DISABLE OVERRIDES     LEFT Key
  • Manual AF Scan - set "AF Key" in CHDK menu to "Set" or "Shutter", then use during Video to force a single AF Scan.

[edit] For Developers

  • The DryOS udumper currently does not work on this camera. PS.FI2 created with Digic IV settings loads.
  • FW blinked out by OldGit (forum link), cleaned dump is available from the dumps archive part 2 (Saturday Jul 18, 2009)
  • Blinking the firmware to the RS232 interface
  • Since 22-Aug-2009 there's a new, functional udumper available: [1], [2]

[edit] LED addresses

0xC0220138 Shortcut/Print button (blue)
0xC0220134 green status LED button (green)
0xC0223030 AF-LED

[edit] Available firmware dumps

  • SX200 fw 1.00C: blinked out by OldGit (forum link), cleaned dump is available from the dumps archive part 2
  • SX200 fw 1.00C: dumped with the new version of the udumper by smartkiller drop.io link
  • SX200 fw 1.00D: dumped with the new version of the udumper by tr1stan (forum link): Rapidshare DL link, also available from the chdkdumps2 drop.


Image:saveas64.png

Alternative download location for firmware dumps:
CHDKdumps @drop.io, Part 1   —   CHDKdumps2 @drop.io, Part 2












[edit] Available pre CHDK

[edit] ToDoList- CHDK

please add issues, bugs & missing features to this list...

  1. Icons on OSD: Closed
  2. Bracketing with Custom Timer: Closed
  3. Other Bracketing modes not working: Open
  4. Color palette (for RAW develop, dcraw profile) to be adjusted, see hereCHDK & RAW   or here http://chdk.wikia.com/wiki/DNG4PS-2/Calibration: Internal DNG processing now corrected using values suggested at point 17 below. Closed
  5. Many scripts not working[3]: Open
  6. Sporadic disaperence of Menus (normal under CHDK, no fix required): Closed
  7. Icon Position defaults need adjusting. (can be adjusted via CHDK Menu, no fix required): Closed
  8. Color of Splash screen in different Startup Modes? (Do we need to change this ?) (Start from PS.FI2 diff from DISKBOOT.BIN) : Corrected. Closed
  9. Mute mic for Optical Zoom in Vidioe record (No function found in camera), suggest post processing of sound to remove noisy zoom: Closed ?
  10. Optical zoom in movie record requires "zoom out" after starting record for it to work: Closed
  11. Optical zoom in Video Record is currently not 100% working: See Camera Specific notes for useage. Closed .
  12. Camera crashes with edge overlay in Play Mode:
  13. On ISO overrides: "multiplier" value is not equal to ISO. Approx ISO_value * 2: ISO Override works on the Real-ISO value, not the Market or Canon Displayed value. See Manual for Details. Closed
  14. Zebra Mode not stable, can produce vertical garbage on Screen: Fixed Closed
  15. Miscellaneous OSD values for zoom/focal length are wrong when zoomed: Retested - now working Closed
  16. Auto Re-Focus during optical zoom (in Video Mode). The optical zoom is useless without this feature: 
    • Workaround: It's no so useless: Zoom to 12x, start video recording, press zoom out and then you have AF while zooming. After you'll  need to trim video, of course.
      • It works if you don't change of subject, on subject changes the cam don't refocus: the cam lacks of AF in video mode. But then you cannot lost focus when another subject cross accidentaly the visual field.
    • Note: at subject distances to 1m aprox, there is not necesary to previously zoom to 12x: start video recording and press zoom out   Added manual AF Scan feature - See Camera Specific notes Closed     
  17. Seems to be writing bad RAW files: Wrong - Please read the CHDK wiki FAQ about how to process RAW files (topic "I've shot some raw pictures. How do I process them?")  Currently, it is not possible yet to use DCRAW and most of the other converters mentioned in the article. But if you convert a RAW file to DNG internally or with DNG4-PS2 , you get a DNG file that can be processed in PS (or in other software that can handle DNG files.) Before you can use DNG4-PS2, you need to apply this registry patch in order to add support for the SX200IS: DNG4PS-2/000.reg
  18. Backlight switching in scripts not working (set_backlight x ): Tested, set_backlight(0) off and set_backlight(1) on both work  Closed
  19. Shortcuts from core/gui.c are not working (e.g. SHORTCUT_DISABLE_OVERRIDES) remap required: Wrong see list of shortcuts in Camera specific notes above. 

[edit] ToDoList - Extra Features

please add requests for extra features to this list...

  1. disable automatic pop-up flash / change to manual control / automatic pop-up/retract on use: Open  *
    • Not possible; flash popup is purely mechanical(ly coupled to lens extension/retraction)
  2. enable AiAf in modes other than "Easy" (the heart on the dial). This camera is crippled and we can only select center/face to focus, but on Easy the camera uses AiAf: Open
  3. enable uncompressed file-output (e.g., RAW-files): Open
  4. extend the maximum exposure time in manual mode to 60": Open
  5. Disable flash by default (we are currently obliged to disable it with the flash button each camera startup) '
    • hm, disabling once works for me. it is remembered for all future sessions.
    • quick failsafe workaround: use finger to carefully push the popup flash back into retracted position (works easily when pushing at an angle). Original firmware then suppresses flash. alternatively simply keep a finger on the flash before switching camera on. Don't worry, you won't break anything, but don't use too much force.
    • advanced failsafe workarround (Really advanced hardware is needed *lol*): Use a strap of spellotape, some 2-3 cm (1 inch) in length, put one part on the flash-shield and the remaining part on the front of the cam. After that, start your cam. The flash will stay in as long as the spellotape-strip is applied. For quicker changes, fold 5mm of the spellotape before you put it on the cam. Now you can use the non sticking end to release the flash much faster, if you need it.  [Inventors comment: Try to ask Canon if there is some nice spellotape available with nice motives on it]
  6. Enable full HD (1080p) video capturing. Some Canon models with DIGIC4 are supporting this feature.(Should only work on faster SDHC Cards)
  7. AE lock active for a "set" of panoramic shots:
  8. Install/enable choice for Time Lapse Video function if not already made: ____
      consider choice to ...
        avoid flooding the ambient scene by flash for night sky shots, and fall back to standard modes
        permit camera to enter battery save mode in long interval lapse 
  9. Enable a "Remote Capture" feature
  10. Lock the exposure and shutter while recording video.
  11. Enable Servo Autofocus during optical Zoom
  • note by a user/tinkerer: my guess is that the pop-up flash is attached to the lens mechanism and therefor cannot be overridden... just a thought, knowing how Canon builds their models...
  • a different user thinks the same way: Just a mechanical feature on SX200is. Maybe there are cams that support this option in the future.
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