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My 6D can beep with the original functions (confirmation of focus on AF, for example), but do not beep with lua scripts (pong game, for example).

What could be the reason for that?

(I have tested on both the latest Nightly Build and the lua-fix build. My 6D has the right firmware version 1.1.6.)

As discussed here: https://www.magiclantern.fm/forum/index.php?topic=23613.0

I was trying to write a lua script to force the mirror up before shot. I tried several solutions, the silent.mo, the Mirror Lockup (MLU), and I also tried to insert a lv.start() before each shot.

The MLU solution works -- but very slow to be stable. I need to give it 1.4 extra seconds for each shot to make it work for a series of shots. At last it takes 3.8 seconds on average for each shot (based on my 550D).

Code Select Expand


-- MLUtest13

menu.set("Shoot", "Mirror Lockup", "ON")
menu.set("Mirror Lockup", "MLU mode", "Handheld")
menu.set("Mirror Lockup", "Handheld Shutter", "1/2...1/125")
menu.set("Mirror Lockup", "Handheld Delay", "1s")

Aperture = 7.1
PrefISO = 400
ShutterSpeed = 0.125

countdown=10

function pressshutter ()
key.press(KEY.HALFSHUTTER)
key.press(KEY.FULLSHUTTER)
msleep(100)
key.press(KEY.UNPRESS_FULLSHUTTER)
key.press(KEY.UNPRESS_HALFSHUTTER)
end

function main()
menu.close()
console.show()

beep(5,50)
task.yield(500)

camera.iso.value = PrefISO
camera.shutter.value = ShutterSpeed
camera.aperture.value = Aperture

repeat

beep(3,200)
pressshutter()
task.yield(2400 + camera.shutter.ms)
beep(2,100)

countdown = countdown - 1

until (countdown == 0)

task.yield(500)
beep(5,50)

end

main()


Inserting a lv.start() before the shots is a much more stable solution. No human estimation of extra sleep or task.yield is needed. The average time is 2.7 seconds for each shots.

However, I surprisingly found that, by inserting a beep(3,200) before each shot, the shot rate increased dramatically to one shot per 1.8 seconds on average, and one shot per 1.5 seconds at peak.

Here's a code comparing the without/with beep situations:

Code Select Expand


-- LVtest2

Aperture = 7.1
PrefISO = 400
ShutterSpeed = 0.125

countdown0=10
countdown1=10

function main()
menu.close()
console.show()

beep(5,50)
task.yield(500)

camera.iso.value = PrefISO
camera.shutter.value = ShutterSpeed
camera.aperture.value = Aperture

repeat

lv.start()
camera.shoot()

countdown0 = countdown0 - 1

until (countdown0 == 0)

repeat

beep(3,200)
lv.start()
camera.shoot()

countdown1 = countdown1 - 1

until (countdown1 == 0)


task.yield(500)
beep(5,50)

end

main()


This video shows how this code works:

https://www.youtube.com/watch?v=uMed4Das_hY

So why is beeping not delaying but on the contrary, accelerating things?

Hi experts,

Just wondering whether it's possible to call the silent shooting mode with a lua script?
(The silent shooting function as described here, https://www.magiclantern.fm/forum/index.php?topic=12523.msg143510#msg143510)

Thank you!

Cheers