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+ | == PowerShot A720 IS == |
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+ | |||
+ | {{Notice| |
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+ | '''CHDK is available for the A720IS with firmware version 1.00C from the [[Downloads|Download page]] |
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+ | }} |
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+ | |||
+ | {| align="right" style="border-collapse:collapse; font-size: x-small;" |
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+ | | __TOC__ |
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+ | |} |
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+ | [[Image:20070820_loRes_a720is_front.jpg|thumb|250px|Powershot A720 IS Front]] |
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+ | [[Image:20070820_loRes_a720is_back.jpg|thumb|250px|Powershot A720 IS Back]] |
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+ | |||
+ | == Reviews and Specifications == |
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+ | |||
+ | * [http://www.canon.com/camera-museum/camera/dcc/data/2007-2008/2007_ps_a720_is.html?lang=us&categ=crn&page=2007-2008 Canon] |
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+ | * [http://www.dpreview.com/reviews/canona720is/ DPreview] |
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+ | * [http://www.dcresource.com/reviews/canon/powershot_a720-review/ DCRC] |
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+ | * [http://www.steves-digicams.com/2007_reviews/canon_a720.html Steve's DigiCams] |
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+ | * [http://www.imaging-resource.com/PRODS/A720IS/A720ISA.HTM Imaging Resource] |
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+ | * [http://www.digitalcamerareview.com/default.asp?newsID=3197&review=canon+powershot+a720+IS DCR] |
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+ | * [http://www.trustedreviews.com/digital-cameras/review/2007/11/20/Canon-PowerShot-A720-IS/p1 Trusted Reviews] |
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+ | * [http://en.wikipedia.org/wiki/Canon_PowerShot_A#Models Wikipedia] |
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+ | |||
+ | == Technical Data == |
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− | ==Camera technical data== |
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<table border=0 cellspacing=0 cellpadding=5> |
<table border=0 cellspacing=0 cellpadding=5> |
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<tr><td>Release date:</td><td>August 2007</td></tr> |
<tr><td>Release date:</td><td>August 2007</td></tr> |
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</table> |
</table> |
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+ | :*('''ver<span style="color:red;">s</span>.req''' reveals Total Shots instead of IS Version) |
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− | |||
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− | In PLAY mode (with '''ver.req''') |
+ | In PLAY mode (with '''ver.req''') |
+ | :First hold {{button|FUNCSET}} and press {{button|DISP}} : |
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Canon PowerShot A720 IS |
Canon PowerShot A720 IS |
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P-ID:315D PAL D |
P-ID:315D PAL D |
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Firmware Ver GM1.00C |
Firmware Ver GM1.00C |
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+ | E18 |
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− | E18 <-- This is an error code |
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Jul 5 2007 11:32:58 |
Jul 5 2007 11:32:58 |
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− | + | :Second press of {{button|DISP}} (while still holding {{button|FUNCSET}}) reveals: |
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Adj Ver.012.006 |
Adj Ver.012.006 |
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− | ZoomLensError |
+ | ZoomLensError |
2007.10.22 00:41:26 |
2007.10.22 00:41:26 |
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− | + | :Third press of {{button|DISP}} (while still holding {{button|FUNCSET}}) reveals: |
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Adj Ver.012.006 |
Adj Ver.012.006 |
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IS Firm Ver. 3.00 |
IS Firm Ver. 3.00 |
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IS Param Ver. 3.11 |
IS Param Ver. 3.11 |
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− | Firmware extraction using the blinker was some trouble but worked. |
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+ | Other Firmware information is given if a file named '''ver<span style="color:red;">s</span>.req''' exists on the SD. |
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− | '''Here is the file:''' [http://www.zshare.net/download/4675310ed272ee/ A720IS-100c.zip] |
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+ | In PLAY mode (with '''ver.req''') |
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− | Since no "update firmware" menu entry is available, this method could be used. |
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+ | :First hold {{button|FUNCSET}} and press {{button|DISP}} : |
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+ | Canon PowerShot A720 IS |
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+ | P-ID:315D PAL D |
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+ | |||
+ | Firmware Ver GM1.00C |
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+ | E18 |
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+ | Jul 5 2007 11:32:58 |
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+ | :Second press of {{button|DISP}} (while still holding {{button|FUNCSET}}) reveals: |
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− | Instead a "bootable" SD and "diskboot.bin" can be used to run the blinker. |
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+ | Adj Ver.012.006 |
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+ | ZoomLensError |
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+ | 2007.10.22 00:41:26 |
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+ | |||
+ | |||
+ | :Third press of {{button|DISP}} (while still holding {{button|FUNCSET}}) reveals: |
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+ | Adj Ver.012.006 |
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+ | Total Shoot : |
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+ | Open Shoot : |
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+ | Closed Shoot : |
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+ | |||
+ | |||
+ | == CHDK specialities == |
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+ | * Since CHDK [http://tools.assembla.com/chdk/changeset/919/ changeset #919] the <Alt> button can be set to PRINT (default) or DISPLAY from the "Miscellaneous stuff" / "<ALT> mode button" CHDK menu |
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+ | ** If DISPLAY is selected for <Alt> button: press {{button|DISPLAY}} quickly it will act as your <ALT> mode button, but if you hold it down for a second, it acts like the DISPLAY button normally does |
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+ | |||
+ | == For Developers == |
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+ | |||
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+ | |||
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+ | * FW '''1.00C''' (blinked out in 2007) |
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+ | |||
+ | {{DL_dumps}} |
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+ | |||
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#define AF 0xC02200c0 // AF-Beam (red) |
#define AF 0xC02200c0 // AF-Beam (red) |
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#define DP 0xC02200c4 // direct-print (blue) |
#define DP 0xC02200c4 // direct-print (blue) |
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#define PW 0xC02200d4 // Power (green) |
#define PW 0xC02200d4 // Power (green) |
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+ | === Porting status (outdated) === |
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− | ==Current Status== |
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+ | ''→ porting the A720 is completed.'' |
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+ | |||
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See [http://forums.dpreview.com/forums/read.asp?forum=1010&message=25508181 dpreview-posting] and [http://www.canon.com/technology/canon_tech/explanation/dryos.html Canon page on DRYOS] |
See [http://forums.dpreview.com/forums/read.asp?forum=1010&message=25508181 dpreview-posting] and [http://www.canon.com/technology/canon_tech/explanation/dryos.html Canon page on DRYOS] |
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+ | : <strike>Most of the porting work is nearly done now</strike>! |
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+ | |||
+ | A complete port is finished. (A long time ago) Only few features are missing,? such as |
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+ | * <strike>usb-support for remote shooting</strike> - works now. |
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+ | * long filename support in filemanager |
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+ | You need to: |
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+ | * <strong>Download</strong> Latest CHDK build for the A720 from http://mighty-hoernsche.de/ |
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+ | * Enable bootdisk-support, see [[Bootable SD card]] and/or http://chdk.setepontos.com/index.php/topic,234.msg2508.html#msg2508 |
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+ | |||
+ | The dcraw beginning with version 8.82 supports RAW format for A720 IS. |
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+ | |||
+ | ''Edited 21/05/09'' |
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+ | [[Category:Cameras]] |
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⚫ |
Latest revision as of 18:16, 26 September 2013
PowerShot A720 IS
CHDK is available for the A720IS with firmware version 1.00C from the Download page |
Reviews and Specifications
Technical Data
Release date: | August 2007 |
Sensor CCD size: | 8.0 MP 1/2.5" |
Lens (35mm equiv) zoom | 35-210, 6x |
LCD size | 2.5" fixed |
Card | SD / SDHC / MMC |
Size (mm) | 96.5 x 66.0 x 43.2 |
Weight (body) | 200 g |
Firmware Information
Firmware information is given if a file named ver.req exists on the SD.
- (vers.req reveals Total Shots instead of IS Version)
In PLAY mode (with ver.req)
- First hold FUNCSET and press DISP :
Canon PowerShot A720 IS P-ID:315D PAL D Firmware Ver GM1.00C E18 Jul 5 2007 11:32:58
- Second press of DISP (while still holding FUNCSET) reveals:
Adj Ver.012.006 ZoomLensError 2007.10.22 00:41:26
- Third press of DISP (while still holding FUNCSET) reveals:
Adj Ver.012.006 IS Firm Ver. 3.00 IS Param Ver. 3.11
Other Firmware information is given if a file named vers.req exists on the SD.
In PLAY mode (with ver.req)
- First hold FUNCSET and press DISP :
Canon PowerShot A720 IS P-ID:315D PAL D Firmware Ver GM1.00C E18 Jul 5 2007 11:32:58
- Second press of DISP (while still holding FUNCSET) reveals:
Adj Ver.012.006 ZoomLensError 2007.10.22 00:41:26
- Third press of DISP (while still holding FUNCSET) reveals:
Adj Ver.012.006 Total Shoot : Open Shoot : Closed Shoot :
CHDK specialities
- Since CHDK changeset #919 the <Alt> button can be set to PRINT (default) or DISPLAY from the "Miscellaneous stuff" / "<ALT> mode button" CHDK menu
- If DISPLAY is selected for <Alt> button: press DISPLAY quickly it will act as your <ALT> mode button, but if you hold it down for a second, it acts like the DISPLAY button normally does
For Developers
Inside this decent camera, the OS is the new DryOS, see also DryOS Porting.
Firmware dumps
- FW 1.00C (blinked out in 2007)
Download location for firmware dumps: |
LED memory addresses
#define AF 0xC02200c0 // AF-Beam (red) #define DP 0xC02200c4 // direct-print (blue) #define OR 0xC02200c8 // orange state-led (bi-state with green) #define GR 0xC02200cc // green state-led (bi-state with orange) #define YE 0xC02200d0 // Yellow state-led #define PW 0xC02200d4 // Power (green)
Porting status (outdated)
→ porting the A720 is completed.
Canon switched the OS from VxWorks (used on earlier cams) to their own DRYOS with the A720. That means that a lot of reverse engineering was done to find out how to hook an extension like CHDK into the A720. See dpreview-posting and Canon page on DRYOS
Most of the porting work is nearly done now!
A complete port is finished. (A long time ago) Only few features are missing,? such as
usb-support for remote shooting- works now.- long filename support in filemanager
You need to:
- Download Latest CHDK build for the A720 from http://mighty-hoernsche.de/
- Enable bootdisk-support, see Bootable SD card and/or http://chdk.setepontos.com/index.php/topic,234.msg2508.html#msg2508
- To use CHDK with SDHC see here http://chdk.setepontos.com/index.php/topic,255.msg13984.html#msg13984
The dcraw beginning with version 8.82 supports RAW format for A720 IS.
Edited 21/05/09