Advanced Intervalometer

Advanced ramping and exposure control for the intervalometer

Author:: David Milligan
License:: GPL 3.0
Summary:: Advanced ramping and exposure control for the intervalometer
Forum:: http://www.magiclantern.fm/forum/index.php?topic=8431.0

Create keyframes from current camera settings and specify the frame at which the keyframe is applied. You will select which parameters you would like to set in the keyframe and which you would like to ignore. The module ramps (linearly) the vaules of selected parameters from one keyframe to the next while the intervalometer is running.

Usage

You should create an initial keyframe at 1, that has the settings you are going to start with, that way the module knows what to ramp from. If you don't do this the module won't ramp to your first keyframe, it will simply set the values when it gets there (it doesn't know how to calculate the ramp, b/c it doesn't know what the values started as).

Exposure ramping

To ramp basic expo controls (Av, Tv, ISO) set them like normal in the canon GUI as if you were taking a picture, then go into the ML menu under 'Shoot' -> 'Intervalometer' -> 'Advanced Intervalometer' -> 'New Keyframe' and create a new keyframe. Turn on or off to specify which parameters are to be included in the keyframe. The current values are displayed on the right for you, but you cannot change them from here.

Focus ramping

For Focus you do specify the offset to focus to from the 'New Keyframe' menu. The module will calculate the number of focus steps it need to take each frame to arrive at your offset that you specify. It steps from wherever the lens is focused at the start. Negative values mean focus closer, positve is towards infinity. You need to be in LiveView for the focusing to work and make sure there is enough time after the exposure is taken, before the next one starts for the focusing to take place (I recommend at least 2s, maybe more depending on camera and lens)

Misc notes

You can ramp the intervalometer period as well, this you also specify from within the new keyframe menu

Once you have created keyframes you can view them with the 'List Keyframes' menu. You can also save your keyframe sequence to file, and then reload them later. If not saved, any keyframes you created will be lost when the camera is turned off. Keyframes are saved and loaded from a file called "SEQ.TXT" in the ML/SETTINGS directory.

When you have created keyframes and are ready to begin, make sure the advanced intervalometer is turned on, then turn the intervalometer on as usual from the ML Shoot menu.

AutoETTR compatibility

This module is compatible with AutoETTR so long as you don't try to ramp the parameters that AutoETTR is trying to change. You can ramp Av and let AutoETTR take care of Tv and ISO, or you can ramp Av and Tv and let AuttoETTR only set ISO, or put AutoETTR to link to Canon shutter (then your Tv will basically be setting the slowest Tv parameter of AutoETTR)

File	Mode	Size
Makefile	-rw-r--r--	238 bytes
README.rst	-rw-r--r--	3.0 KB
adv_int.c	-rw-r--r--	32.3 KB

README.rst