Messages

1

General Development / Re: Question on ML capabilities in controlling lens focus

« on: March 11, 2014, 06:18:24 PM »

You can only control the lens in LiveView and it's very slow, but it is possible.

Would you happen to know how slow? I've noticed that the camera's native can move the lens at about 6 steps/second (regardless of size), ignoring phase-detect, whereas the peak speed that can be obtained using the Canon SDK and controlling through the USB cable is about 3 steps/second.

Thank you for your help folks!

2

General Development / Question on ML capabilities in controlling lens focus

« on: March 10, 2014, 07:09:04 PM »

Dear Magic Lantern developers,

I'm a researcher currently doing work to increase autofocus speed and accuracy. I'm looking at using ML to test the algorithm and I'd like to know which of the following are possible, if any, by writing a script or modifying the ML code and recompiling :
1) Make the lens take a small, medium or large step forward (to far focus) or backwards (to near focus).
2) Determine the exact number of lens positions on a lens for focusing.
3) Determine the exact position of the lens in terms of focus, in number of lens steps.
4) If possible to move the lens, determine whether we've reached the last lens position.
5) Obtain an image from the liveview and computing something such as the histogram in real-time.

Your assistance is greatly appreciated.