Accessing ML enhanced functionality from Lua

[garry23]

As I gain greater awareness of Lua scripting, I'm facing an 'obvious' question: how can I access some of the standard ML functionality from within a Lua script.

For example: setting an ETTR exposure.

Does anyone know how to do this?

Cheers

Garry

[Walter Schulz]

@dmilligan: Can add/readd a list of things not yet implemented in LUA thread starting post? An older version I found mentioned interaction with other ML modules as to do.

[garry23]

Walter

Thanks for the pointer.

Looking forward to the next Lua update on the nightlies as I a script to publish, but the Lua module needs to be updated :-)

Cheers

Garry

[a1ex]

You might be looking for this: http://davidmilligan.github.io/ml-lua/modules/menu.html

In particular, these functions:

Code Select Expand


set (menu, entry, value) Set the value of some existing ML menu entry
get (menu, entry)         Get the value of some existing ML menu entry


[garry23]

Alex

Once again thanks for the pointer.

If I look at accessing ETTR and returning an exposure to subsequently use in a Lua script, how would one code this is in Lua speak.

Cheers

Garry

[dmilligan]

I had originally thought about adding some of the histogram analysis functions, but I decided not to. Maybe that's something that would actually get used?

What exactly are you trying to do?

[garry23]

David

I've successfully written a script that does focus and exposure bracketing for landscapes, but can't fully test until the next nightly release.

My next Lua experiments revolve around exploiting accessing ETTR exposure.

I honestly wouldn't say I have a real project yet.

As I say the priority is to get the next Lua nightly, where I hope you have managed to fix a few things, critically driving the lens in both directions :-)

Cheers

Garry

[Walter Schulz]

I'm not a programmer but I'm afraid the bug is not in Lua module but in ML itself. See https://bitbucket.org/hudson/magic-lantern/issues/2452/soft-focus-limit-incorrectly-reached-when

[garry23]

Walter

I've got round this is my script as I start at the macro end and drive the lens to the infinity end, but stop before the infinity soft stop.

The key thing that I hope that David has fixed is Lua being able to drive the lens is both directions.

Cheers

Garry