Shutter property question

[garry23]

@a1ex

Hope you can throw some light on this need.

I wish to track the number of images taken and use this to deconflict conflicts in a Lua script.

I tried using the property handler, but get strange results. Here is the test code:

Code Select Expand


count = 0

function property.SHUTTER:handler(value)
count = count + 1
end

function dis(arg)
display.print(tostring(count), 200, 140, FONT.LARGE,COLOR.BLACK,COLOR.WHITE)
end

event.shoot_task = dis

Count doesn't correlate with shutter actions and doesn't seem to work if the shutter is triggered through Canon, rather, than say ML advanced bracketing.

Also, when it does trigger, I get strange counts, ie if three brackets taken, I get a count of 4 most of the time.

[a1ex]

The SHUTTER property refers to shutter speed, not to number of pictures taken.

You may be looking for dryos.shooting_card.file_number (a number between 1 and 9999 iirc, don't remember if 0 is also allowed).

[garry23]

@a1ex

You're a star 

That's the one I need 

Cheers

Garry

[garry23]

@a1ex

Another one of those 'strange response' questions.

Here is the simple script:

Code Select Expand

function property.LENS:handler(value)
beep()
end

When I have my 12-24 Sigma lens on I get the beep when I change focal length, as expected.

When I put on my Canon 70-200 F/4L I get nothing.

ML is reporting focal length ok, ie on the screen.

Any thoughts?

Cheers

Garry

[a1ex]

Focal length is changed in PROP_LV_LENS.

PROP_LENS has raw_aperture_min/max (among many others), so I assume the first lens might have variable aperture (that changes while you zoom in) and the second might have constant aperture.

[garry23]

@a1ex

Yes that makes sense.

My script needs to dynamically change its algorithms as FL changes.

I know I could 'just' watch using, say, an event like shoot_task, but if there is another way that would be good to know.

Cheers

Garry