I came across this article while I was surfing the internet for some new lens, as a Canon 400D user I find this very interesting as it stated “Firmware hack Rebel XTi /400D enables ISO 3200, Spot metering! “. I’m quite itchy when it comes to mods and addons and this wasn’t an exception.
- I have a rebel 350d and err 99 comes up when I use my canon 70-300 lense.It will work only with flash on and as soon as flash is not available it will not work. I have tried cleaning the contacts and in different modes,so assume it is something gone wrong with electrical circuit in lense as all functions work otherwise.
- Digital Rebel XTi Kit Contents Digital Rebel XTi Body (Silver of Black) (A) Eyecup Ef (not shown) Wide Strap EW-100DBII (C) Video Cable VC-100 (D) USB Interface Cable IFC-400PCU (E) Battery Pack NB-2LH (F) Battery Charger CB-2LW (G) EOS Digital Solution Disc and Instruction Manuals (H) 'Great Photography is Easy' Booklet and 'Do More with Macro.
I bought my 400D about a year plus. Many people told me to go for a Nikon, but I found many of those who went for figurine photo shoots actually went for Canon. Another reason I went for a Canon where the price of lens. Yes, they are much cheaper and also easily purchased. I’m happy with it but with the release of 450D, 1000D and the latest 500D I felt I wanted to change but after I saw this mod I kinda pulled back. If you own, or know someone who has a 400D, this is a good mod.
Right here goes:
A firmware hack for Rebel XTi / 400D that enables additional features such as ISO 3200 (and other ISOs in between like 500, 640, 120, 1250 etc) and SPOT METERING (yes! spot metering!) has been released and it works pretty darn well!
For more information and the required files, please refer to:
http://chdk.setepontos.com/index.php…,3290.135.html
Use testfir.fir to make your 400d bootable from CF and then make your CF card bootable using cardtricks. (choose CF boot sector option) Copy the hack file (autorun.bin) into the CF.
Once all is done correctly, insert the CF and turn the camera on. The print button will light up (blue) momentarily to show that the hack has been loaded.
To change ISO, go to ISO menu to choose baseline ISO and then push the print button several times to switch to other ISOs. (ISO number in the screen will change accordingly)
100 – 100 / 125 / 160 / 80
200 – 200 / 250 / 320
400 – 400 / 500 / 640
800 – 800 / 1000 / 1250
1600 – 1600 / 2000 / 2500 / 3200
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To use spot metering go to metering menu, and then push print button. Camera will beep and spot metering will be enabled.
To start the camera without the hack, insert other non-hacked CFs or just format the CF.
——– DETAILED HOW TO ——–
1. use a fully charged battery. you need CF card reader and windows. on a mac, use windows under bootcamp/vmware fusion.
2. update to latest firmware (1.1.1) by downloading the latest firmware, copying it into the root of CF, and running “update firmware” in the setup menu.
3. empty your CF, download testfir.fir from http://chdk.setepontos.com/index.php/topic,1618.0.html and copy it into the root of your CF.
4. insert CF, and then run firmware update again using testfir.fir the screen will go blank. wait 5 minutes, turn off, take battery out and back in.
5. insert CF into card reader and perform a quick format.
6. IF Card <= 4GB (fat12/fat16)
download cardtricks: http://chdk.wikia.com/wiki/Cardtricks run it, choose CF drive, tick “cf boot sector” and then click “make bootable.”
ELSE IF card > 4GB (fat32)
use HxD : http://mh-nexus.de/en/downloads.php?product=HxD run as administrator, goto extras -> options -> security -> uncheck “open disk as readonly by default”, then open CF card using the 5th button (cd, floppy and HDD icon) in the toolbar, then carefully write “EOS_DEVELOP” at 0x47 and “BOOTDISK” at 0x5C. save and exit.
7. download autoexec.bin from here: http://code.google.com/p/400d/downloads/list copy it into CF.
8. safely remove CF, insert it into camera, if the blue print led of the camera briefly lights up when the camera is turned on, the hack is successfully loaded.
9. to use additional ISO values, choose one of the 100,200,400,800,1600, and then push the print button to access more ISOs. (80/100/125/160/200/250/320/400/500/640/800/1000/1250/ 1600/2000/2500/3200)
ISO levels 16/32/40/50 can also be enabled if you go to menu and turn “shoot without CF” ON, but not sure if they really work (i see no difference.)
10. to use spot metering, go to metering selection screen, then push the print button. to go back to “evaluative metering”, you have to select other metering modes first, and then back to “evaluative metering”, because the camera thinks you are at “evaluative” although you are at “spot metering”.
11. to view shutter actuation count, which was only viewable by canon themselves, go to menu, push print button, push menu button again twice, (“factory menu” appears), enter factory menu, then push print button to enter “debug mode”. after a beep, go back and set spot metering. and you will see the camera writing something to the CF (CF light). eject CF, insert it into card reader, you will see a file called STDOUT.txt, search the textfile for “Release”. there you see a number and that is the shutter count.
source:http://photography-on-the.net/forum
I’ve tried it and it works fine with my 400D. Maybe around next week I’ll go give it a go around the metro. Hope you like this. Be reminded, do it at your own risk. I nor Canon, do not hold any responsible for any damage to towards your property.
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Canon Rebel Xti Firmware Update
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