Eos 400d ( Rebel XTI )

a1ex

Trap focus is very useful for manual lenses: it will take a picture when the subject comes in focus.

Does the 400D have live view? On 550D, trap focus is much more accurate in live view than with the classic AF sensor.

chross

Exactly,
Trap focus takes a picture when your camera gets focus. While obsolete with autofocus, you still can use it to take pictures of shy animals etc.

And yes, my spacer rings do not forward the signals so i need to set this in advance

Speedy

Just wanted to say: Thank you so much for doing all this.

eduperez

chross
Question: is it possible to have something like a focus trap, that shoots whenever the AF light lights up?
People on this German forum suggested taping a contact on the lens body, which will result in the camera shooting if the trigger is pushed halfway and the camera gets an "in-focus" signal: http://translate.google.com/translate?js=n&prev=_t&hl=en&ie=UTF-8&layout=2&eotf=1&sl=auto&tl=en&u=http%3A%2F%2Fwww.dslr-forum.de%2Fshowthread.php%3Ft%3D165289%26highlight%3Dfokusfalle%26page%3D4

AFAIK, nobody has found how to talk to the AF system, yet; the answer is no. You know you can also use an AF confirmation chip, don't you? Those can be found relatively cheap on eBay.

chross
Also, is it possible to trigger the "aperture preview" by software? If yes, a function that triggers that button and holds it would be nice. The reason is that I have spacer rings for my 400d to use my standard lenses as macro lenses. This works quite well but I have to preselect the aperture via press and hold "aperture preview", unscrew the objective while holding the button, mount spacer rings, mount objective. It were better if the aperture preview could be locked so it gets more comfortable.

Can you just use the "DOF Preview" button?

eduperez

ym_afiq
just wanna ask something..
how do i revert back this hack .
i try to format my CF but my 400d wouldnt start if the CF is empty.
sometimes i had OOF problem when taking a photo after upgrading to the latest version of this hack..
please advise..tq..

Did you FORMAT the card, or did you just DELETE the contents of the card?

chross

Hey eduperez,
thanks for the reply. I know that I can use a AF chip, just thought that it'd be nice to include, if possible. Since it can be done by taping one electrical contact, I thought it might be done by software.

And yes, I can use the DOF preview button, but at times, it is a bit complicated when you have your hands full of lenses and the camera. Nevermind if it is too much work or impossible at all, was merely a suggestion.

Keep up the good work!

eduperez

Here we are again, now with a fancy new menu, copied from Sergei:

Source at http://400plus.googlecode.com/files/400plus-20110318-2.src.zip.
Binary at http://400plus.googlecode.com/files/400plus-20110318-2.bin.zip.
User Guide at http://code.google.com/p/400plus/wiki/UserGuide.

I will be unreachable for some days... try not to break anything while I am out!

UPDATE: Fixed a bug (highlighted line does not match active line when returning to menu).
UPDATE: Fixed another bug (flash-related options act inverted).

lars

Thank you! Will test this next weekend 😀

ataru

don't know if someone is interested, there's a user guide in italian

manuale utente 400plus.doc

50.5KB

ataru

a question... it is possible to turn off screen during script executing? it would be great to preserve power consumption, e.g. using intervalometer

pmllc

Really great job segei and eduperez, but i'm not able to configure extEAB in eduperez last version... Did i miss something ?

Speedy

Yes, you did.
Goto 400d-Menu, EAEB>Delay and press MENU to switch between different settings.
Working on a german manual, if anyone is interested.

pmllc

Speedy
Yes, you did.
Goto 400d-Menu, EAEB>Delay and press MENU to switch between different settings.
Working on a german manual, if anyone is interested.

Thanks a lot, i missed the menu function 😉

Speedy

I think the 1st version of the
german user-manual
(translated the follwing http://code.google.com/p/400plus/wiki/UserGuide, date: March, 18th )
is ready to be released if someone is interested in it:

400plus german.docx

31.13KB

guffster

eduperez
Here we are again, now with a fancy new menu, copied from Sergei:

[list]
[li]Source at http://400plus.googlecode.com/files/400plus-20110318-2.src.zip.[/li]
[li]Binary at http://400plus.googlecode.com/files/400plus-20110318-2.bin.zip.[/li]
[li]User Guide at http://code.google.com/p/400plus/wiki/UserGuide.[/li]
[/list]

I will be unreachable for some days... try not to break anything while I am out!

UPDATE: Fixed a bug (highlighted line does not match active line when returning to menu).
UPDATE: Fixed another bug (flash-related options act inverted).

Very impressive work... It's great to see these kinds of features made available to the 400D/XTi. The user interface is clean, simple, and very easy to use! Can't wait to see what is added next! Maybe soon someone will have the opportunity to re-examine adding an AUTO-ISO feature to the Creative Zones.

This forum has definitely become fun to watch again - 55 pages of forum entries and counting! Nice.

My 400D and I thank you all.

0xAF

hi
finally i started learning the code...
i wanted to start with the PTP stuff...
unfortunately i overestimated myself - i am far away from the reverse engineering/disassembling stuff (atleast for now)
good news is that a1ex gave me a hand and pointed me in the right directions... but it will take time to learn basic things...

for now i wanted to see if i can find some handlers in ptp communications with the current code base...
by examining the code i found how can i enable debug mode so the firmware started to write STDOUT.TXT
unfortunately i do not fully understand it...
i've got the ptpcam version which is patched for CHDK operations...
here is sample of my log related to chdk ptp operation call 0x9999

  4450:  239270 [FACE] Temperature:27 TempGain:0
[CmndMgr]WARNING: NotFind!!, GetPTPOperationFunction()
 --- OperationCode = 0x9999                                                    // AF: 0x9999 = CHDK
[FramCtrl]WARNING: Entry😁oDefaultUndefine()
  4451:  247300 [PTPOPE]OperationCode:0x1002,P1:1,P2:0,P3:0     // AF: 0x1002 = OpenSession
  4452:  247310 [PTPOPE]OperationCode:0x1001,P1:0,P2:0,P3:0     // AF: 0x1001 = GetDeviceInfo
  4453:  247320 [PTP]USBConnectStatus:3
  4454:  247320 [MC] T:0012, S:0002, 75
  4455:  247320 [RIF]RIF_PtpConnectUILock:1
  4456:  247330 [PTPOPE]OperationCode:0x9999,P1:0,P2:0,P3:0     // AF: 0x9999 = CHDK
  4457:  247330 [MC] T:0004, S:0002, 76
  4458:  247340          act:0141
  4459:  247360 [MC] T:0001, S:0002, 77
  4460:  247360 [MAIN] Temp. 235(EB)

excuse my terminology, but i'm not sure know the right words in english...
the first number seems to be incrementing line number in the log...
im not sure what is the next number, but it seems it is incrementing too (may be with each call?)
the string in the brackets [] seems to indicate which submodule is working
then follows the message

how can i understand what is [MC], [RIF], [PTPOPE], [CmndMgr], [FramCtrl] ?
i can guess the names for some (PTPOPE = PtpOperations, RIF = RemoteInterFace?), but what exactly is this ?

it seems that the function which is looking for the PTP handlers is called: GetPTPOperationFunction()
the only closest routine name i found is:
funclist.txt😁EF(aBugGetptpopera, 0xFFA626B4)
i suspect it is the right one, but i'm little confused because of "aBug" prefix...

i've started with something which a1ex pointed me: http://www.mweerden.net/chdk_ptp.html
but for now i do not have memory dump, neither tools/knowledge to examine it, so if someone have a dump which i can use for a start (or i should learn how to use 'COPY' function from the code)...
i could try to find the structure describing the handlers and the function which adds them to the list...
i'm not sure i can handle examining the dump, but it will be a good place to start...

i know my question may sound silly right now, for some of you it may look like an open book, but i'm just a beginner in this area ... and ASM for ARM will make things even more difficult to me... i would like to look back to this post after some time and say "how stupid i must have been to ask such things...😀", but it will take time or may be will never happen, but never hurts to try 😉.

sizzlincok

eduperez
Here we are again, now with a fancy new menu, copied from Sergei:

[list]
[li]Source at http://400plus.googlecode.com/files/400plus-20110318-2.src.zip.[/li]
[li]Binary at http://400plus.googlecode.com/files/400plus-20110318-2.bin.zip.[/li]
[li]User Guide at http://code.google.com/p/400plus/wiki/UserGuide.[/li]
[/list]

I will be unreachable for some days... try not to break anything while I am out!

UPDATE: Fixed a bug (highlighted line does not match active line when returning to menu).
UPDATE: Fixed another bug (flash-related options act inverted).

Not bad. Your menu version is much more smoother, and has way less lag than Sergei's version.

Might I suggest that you change your lower case "yes" and "no"'s to A capitalized first letter.
Such as "Yes" and "No".
Example would be "ISO In Viewfinder: Yes"

It looks more professional if it's capitalized. Just a suggestion!

I personally WANT to use your version, but the nonprofessional look of the lower cased letters bug me. Haha 😁

0xAF

i personally prefer all-lower-case 😉 looks more geeky... but perhaps sizzlincok is right...

Josean0

With the permission of Sergei and eduperez.
I think that we should open a discussion on the order of menu options 400plus.
I have a particular version [DP Button] or [DP action] first.

Sorry for my bad English 😎.
Thanks.

eduperez

Hi guys.

Glad to know you liked the new version; and many thanks for the translations, I am sure they will be very useful.

Please let me remember you there is a page at http://code.google.com/p/400plus/issues/list where all your bug reports and feature requests are welcome. I will continue to use this thread for the announcements, and will obviously take note of any issued posted here, but having them all in a place would be very nice. Plus you will get an email as soon as yours gets fixed or done!

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