[WIP - lens.autofocusing, ...] Lua Property access

[garry23]

@A1ex or anyone

I'm trying to make use of a long halfshutter and need to differentiate it from a LV AF action.

I thought I could use the Lua property handler, eg accessing LV_FOCUS_STATE or another LV_FOCUS property, ie to handle the AF condition.

But the LV_FOCUS property handler always seems to return 0.

Does this mean it is not yet exposed in Lua?

Cheers

Garry

[a1ex]

It's PROP_LV_FOCUS_STATUS; value is 3 during autofocus (hopefully on all models) and 1 or 2 (depending on model) when idle.

What about adding a boolean field named lens.focusing ?

(sorry for being slow with Lua requests - it's just not something I use often, although I do see its value for the ML project)

[garry23]

@a1ex

You never have to apologize! Not with all the work you do and with all the knowledge you have.

I tried that prop and only got 0 returned on my EOSM.

Here is the test code:

Code: [Select]

my_key = 0

function check_requests()
        display.notify_box(tostring(my_key),2000)
        return true
end

function property.LV_FOCUS_STATUS:handler(value)
     my_key = value
end
 
event.shoot_task = check_requests

[a1ex]

The script works fine on 5D3, and likely on all other models that pass api_test.lua. EOS M is probably not one of them...

[garry23]

@a1ex

OK, I'll test tomorrow on the 5D3.

I need a way (tonight if possible) to test if image is being taken, via Lua.

Is there another way?

Cheers

Garry

[a1ex]

To test if an image is being taken, in order to do something during a long exposure? Or to do something after the image was taken?

The former is not exposed to Lua, but is doable. The latter is easier - see e.g. in api_test.lua: dryos.shooting_card.file_number gets incremented after a picture is taken.

[garry23]

@a1ex

Yes it's the long exposure test.

It would be great to be able to test if image taking started and image taking finished.

Cheers

Garry