Eos 400d ( Rebel XTI )

0xAF

Luk
start reading at page one of this thread 😉, then you will know nearly all about it... 😀
and here http://code.google.com/p/400plus/

reading from page 1 will take forever 😉
better start reading the wiki pages on the project home page (link above)

nxb

Is it possible to make adjustments to metering to compensate for different focusing screens like in more expensive cameras?

I think 5d/1d have a custom function. I got a split prism focusing screen and when its dark outside spot/partial can be off. I know it won't work when the prisms are blacked out.

eduperez

nxb
Is it possible to make adjustments to metering to compensate for different focusing screens like in more expensive cameras?

I think 5d/1d have a custom function. I got a split prism focusing screen and when its dark outside spot/partial can be off. I know it won't work when the prisms are blacked out.

I read somewhere about an internal utility, used by Canon technicians, that could adjust an "exposure bias" parameter inside the camera; but I have never seen such tool myself, and I do not know how to access that parameter. I have also been thinking how else could we accomplish this (maybe tinkering with the exposure readings, as they transverse our code?), but could not come up with an easy solution.

So, unless somebody else steps in, I am afraid the answer is no.

nxb

I also found this: http://www.learn.usa.canon.com/app/pdfs/quickguides/CDLC_FocusingScreens_QuickGuide.pdf

It says you could move spot metering point to another place not within the prisms. Don't know if metering follows the AF points on the 400d.

Maybe we can try AF pattern that doesn't include the center point? I tried getting the X without the center but it won't let me pick that pattern. I can only do sides and top.

I've been doing -2 ev for spot and -1ev for partial and it helps a bit but people have been saying it changes at different apertures. Still need to test more.

I'm getting a 45degree split prism too so I'll see what that does to metering. They are cheap right now from CN, I think like 15 bucks free shipping.

eduperez

We could add any combination of points to the list of extended AF patterns, or we could add an option to exclude the central point from the existing patterns; bot options seem feasible.

But I'd like to be sure that this will solve the issue before changing the code, however; and I'm currently busy with other projects, and will need some time before I can come back and start coding again. Could you test whether metering follows AF points? If selecting a lateral AF point does not solve the issue, adding another pattern will not do it, either.

north_wind_rus

Hi all! Tell a modified firmware allows you to shoot more than 30 seconds, or need to use the remote ...

eduperez

north_wind_rus
Hi all! Tell a modified firmware allows you to shoot more than 30 seconds, or need to use the remote ...

Look into the EAEB script: configure both "Bulb min" and "Bulb max" to the desired exposure time, and set the camera to BULB mode.

north_wind_rus

eduperez

north_wind_rus
Hi all! Tell a modified firmware allows you to shoot more than 30 seconds, or need to use the remote ...

Look into the EAEB script: configure both "Bulb min" and "Bulb max" to the desired exposure time, and set the camera to BULB mode.

And how to incorporate these "scripts" or you can create yourself a preset?

I found this menu EAEB script, change the value Bulb min and Bulb max, pressed the shutter button, but nothing happened, only the darkened screen and has flashing blue button and everything, nothing happens (((

And why in the "Scripts" there are exclamation marks?

Sorry for my english, translated by Google Translator

eduperez

north_wind_rus

eduperez

north_wind_rus
Hi all! Tell a modified firmware allows you to shoot more than 30 seconds, or need to use the remote ...

Look into the EAEB script: configure both "Bulb min" and "Bulb max" to the desired exposure time, and set the camera to BULB mode.

And how to incorporate these "scripts" or you can create yourself a preset?

I found this menu EAEB script, change the value Bulb min and Bulb max, pressed the shutter button, but nothing happened, only the darkened screen and has flashing blue button and everything, nothing happens (((

And why in the "Scripts" there are exclamation marks?

Sorry for my english, translated by Google Translator

Please, read the user guide, it is all explained there...

Ordinary

Hi,everyone!
Will languages.ini copyed the CF card, how to switch between different languages â€‹â€‹in the camera

eduperez

Ordinary
Hi,everyone!
Will languages.ini copyed the CF card, how to switch between different languages â€‹â€‹in the camera

Using the standard camera menus: 400plus will try to use the same language that you select for the camera.

Coutts

Hi guys - I'm working on running code on the 5d classic, and it runs VxWorks similar to the 400d (it's a cross between the 400d and modern DryOS..it's odd).

anyways I seem to be having the same issues the early devs of 400plus had, where they were unable to run code from a fir. I can make an led blink but i cannot boot the firmware or make the camera restart... anybody have any ideas?

I've tried:
- writing some of the asm code in an entry.s of the boot process and making it branch to ROM locations to continue execution - no luck.
- writing some of the boot process in C and then calling ROM functions - no luck
- just straight calling 0xFF810000 - no luck

initially somebody dumped the 400d bootloader using the LED blink method, then they reverse engineered what was needed for an autoexec.bin boot and then i guess they could run code. It was some problem with running FIR files, I guess autoexec.bin files worked fine. I've tried adapting led blink code with no success yet, so I'm stuck.

If anybody has any knowledge on this, please pm me. I have been reading 400d threads like mad trying to figure out what I need to do... starting to lose hope for the 5dc.
https://chdk.setepontos.com/d/7759

0xAF

Hi Andrew,
I have plans to make 400Plus run from a .fir file (or at least part of it), so we can have sort of Preview version of the hack and we can enable the AUTOEXEC.BIN from there.
Now after your post here, and after we discussed this in private for last few days, I'm wondering will I succeed in making a workable .fir file. At least we have the BootLoader code and it can help me understand more.

Perhaps my experiments with the .fir file will bring some information for you.

Regarding 5dc, I'm tempted to get one and cross the both projects together, while mixing the ML code with it.
This way 400Plus will become more like ML in it's internals, allowing it to get cool features from ML.
And 5dc is VxWorks with older Canon's API, so I'm sort of familiar with it (btw DryOS and the newer API are not so different from what I've seen).

All this sounds like a huge and time consuming work, unfortunately I'm still swamped with other projects.
Moreover the 5dc after market price is not what I've expected and it doesn't look like I'm getting one soon.
(I though it would be something like 300-350 EUR, unfortunately it's more like 500-600 EUR)

So for now I can only wish you luck, hopefully, sooner or later, I will be able to help you with info at least.

Ordinary

eduperez

Ordinary
Hi,everyone!
Will languages.ini copyed the CF card, how to switch between different languages â€‹â€‹in the camera

Using the standard camera menus: 400plus will try to use the same language that you select for the camera.

Set the language of the camera, the menu is not translated, just press the print button when the screen flashed.Either French, German or other languagesâ€‹â€‹.
There is no way to upload my camera language settings page photos.
I think it is the "language.ini language name, produced inconsistent with the language name in the camera menu.
For example, my camera language settings page, the "German" corresponds to "Deutsch", "French" corresponds to "Francais," Simplified Chinese "corresponds to" ç®€ä½"ä¸æ-‡"

eduperez

Ordinary
[...]
Set the language of the camera, the menu is not translated, just press the print button when the screen flashed.Either French, German or other languagesâ€‹â€‹.
There is no way to upload my camera language settings page photos.
I think it is the "language.ini language name, produced inconsistent with the language name in the camera menu.
For example, my camera language settings page, the "German" corresponds to "Deutsch", "French" corresponds to "Francais," Simplified Chinese "corresponds to" ç®€ä½"ä¸æ-‡"

Looks like you've found a bug here: we use the "name" of the selected language to find a match in LANGUAGES.INI; but that name may be translated to the language previously configured in the camera. As the names in that file are in English, it only works if we try to move from English to another language; but fails if we move from non-English to another language.

I'll have a look at it as soon as possible; in the meantime, could you please try to configure the camera to English, then to French / German? Many thanks!

0xAF

eduperez

Looks like you've found a bug here: we use the "name" of the selected language to find a match in LANGUAGES.INI; but that name may be translated to the language previously configured in the camera. As the names in that file are in English, it only works if we try to move from English to another language; but fails if we move from non-English to another language.

I'll have a look at it as soon as possible; in the meantime, could you please try to configure the camera to English, then to French / German? Many thanks!

I was thinking the same, though i do not have the camera near me to test this.
But then, IIRC, when the camera starts, it was using the correctly selected language.
What would that mean ? The camera starts in english (i think not).
I will check this tonight too... and if we need we can set the language IDs instead of language NAMEs in the language.ini file.

javamomo

hi, I am looking for a hack that change aperture with scroll in m mode, then av button with scroll to change expose speed. For underwater, expose speed can keep 1/100, but change aperture frequency. thanks

eduperez

javamomo
hi, I am looking for a hack that change aperture with scroll in m mode, then av button with scroll to change expose speed. For underwater, expose speed can keep 1/100, but change aperture frequency. thanks

Please, open a "Feature request" at http://code.google.com/p/400plus/issues/entry, and perhaps someone will do it; thanks.

eduperez

0xAF

eduperez

Looks like you've found a bug here: we use the "name" of the selected language to find a match in LANGUAGES.INI; but that name may be translated to the language previously configured in the camera. As the names in that file are in English, it only works if we try to move from English to another language; but fails if we move from non-English to another language.

I'll have a look at it as soon as possible; in the meantime, could you please try to configure the camera to English, then to French / German? Many thanks!

I was thinking the same, though i do not have the camera near me to test this.
But then, IIRC, when the camera starts, it was using the correctly selected language.
What would that mean ? The camera starts in english (i think not).
I will check this tonight too... and if we need we can set the language IDs instead of language NAMEs in the language.ini file.

I have playing with this for a while, and couldn't get the camera to fail: I changed languages from English to Spanish, then to German, and from there to French; and 400plus always displayed the menus in the correct language....

0xAF

eduperez
I have playing with this for a while, and couldn't get the camera to fail: I changed languages from English to Spanish, then to German, and from there to French; and 400plus always displayed the menus in the correct language....

May be the reporter did something wrong (or edited the file with wrong tools) ?

Ordinary, can you please try to reproduce ?

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