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Could you please add the option to link the iso range to what is set in the Canon menu, i.e. max. value and on 6d/5d3 also min. value?

5D2 doesn't have any auto ISO settings.
You can do a pull request to my repo for other cameras.

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The second game for ML is called DSLR Arkanoid
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Download Source  Buy me a beer 

Thanks Audionut for a big beer! This will be a little different beer than others.

https://bitbucket.org/hudson/magic-lantern/pull-request/196/autoexpo-update

Same TV curve
Compensate minimum aperture changes with ISO offset.
And EC changes with max aperture & EC offset & ISO offset.
for now, I don't know how to make relation between min shutter speed, we need to describe it more accurately (the best in C)

In Av useability mode.  If max Av change, adjust ISO to match original curve.

you probably mean min AV
so if you increase min AV => move ISO curve left

For Tv mode.  Map TV minimum to top scroll wheel.  Adjust ISO curve to match original curve.

so if you increase TV minimum => move ISO curve left

right? some other dependencies?

and does anybody use some ARM decompiler? I'm not good in ASM.

[Some example:]

Well, I want to implement to autoexpo module "attach button to" feature. But for future there could be some conflicts with other modules so I think there could be some button manager.

Some example:
if ((screen is off OR info screen) AND autoexpo_running) map speed dial to autoexpo exposure compensation
if (lv AND video mode) map left button to some custom defined action
if (lv AND raw_rec_enable) map set to raw_rec

I thing we should define these states:
lv - photo / video mode
info screen
screen off
play mode
not menu (we do need remap menu buttons ?)

send me you feedback and could you suggest some API? is this good idea?
Above that users can remap it to whatever.

agree

yes it works, but for me this is still black magic
https://bitbucket.org/hudson/magic-lantern/pull-request/190/ae_value-autoexpo

Real AE_VALUE has values like this: F301
F3 would be like -3 expo and 01/etc is whether manual or auto exposure is used. It is int8... value must be matching your calcuation since its working everywhere else and gets reasonably good expo.

could you send me some instruction how can I find it via Ida like TheUnkn0wn posted?

show graph option, custom menu drawing, large graph
https://bitbucket.org/pravdomil/autoexpo-module/commits/c475bd15b075566efe78f38007e8f74da81e675e

EC is the photographers control over middle exposure.  It allows the photographer to compensate for situations like you have described.
As soon as you only concern with highlight protection, you no longer care about "correct" exposure.  ETTR should remain separate.

Sure, it will be only a option, there will be possibility to shoot with middle range and custom EC.
Probably I will call it Auto EC

Any point to finding expo comp in addition to AE Value? I think AE_Value itself can be found in a similar way.
Why #define AE_VALUE (EXPO_COMP-1) * 8 / 2048? All cameras have AE_VALUE that doesn't need this and matches the on screen meter.

https://bitbucket.org/hudson/magic-lantern/pull-request/144/autoexpo-module/activity#comment-408042

The EC curve is doing my head in.  It would be far simpler for the end user if there were just some basic conditions.

well this implementation is for me easier, you can do it and send me pull request

Can you link EC to a scroll dial?
This way it can be adjusted on the fly rather then changing via menu.

in TODO list

User can then make EC adjustments on the fly, rather then using some predetermined curve that has no respect for the dynamic range of the scene.

well it will be completely fixed after we found all brightness sensors values
I have this idea there will be 3 choices
Image that you are shooting from your room throw window.
1. I don't want any overexposure (like ETTR) - I want to shoot something outside
2. Balanced over and underexposure - I want shoot something outside and inside
3. I want to shoot dark areas - I want shoot picture on wall near the window
or you can shoot with DualISO

next update https://bitbucket.org/hudson/magic-lantern/pull-request/188/autoexpo-update/diff

I got some answer from ItsMeLenny at IRC

you'll probably have to wait 6 months

yes nighty modules !

and could you make Games module board? please created it as soon as possible, or give me some access or whatever
I have prepared some post, thanks

well you can use auto ISO in M mode, on 5D2 it works

BTW: nice offer!

#[email protected]

I want to find bright value for each sensor, but it seems that they are not stored nearby EXPO_COMP.

nice and how do you find this?

+0x1C

nice, how do you found it? mem_spy?

- customize e.g. canon file prefixes MOV_, IMG_, etc

https://bitbucket.org/hudson/magic-lantern/pull-request/183/filepref-module