Lens Focus error on "lv"

Started by sig_cor, July 24, 2013, 11:02:56 AM

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sig_cor

Hi to all!
I'm getting an error when I try to move the focus of some step, it's simply two instructions:


int ret = LensFocus(-2);
lens_take_picture(64, 0);


the LensFocus function (lens_focus) stop and return at the first control:


if (!lv) return 0;


at the start of the function:


int lens_focus(
    int num_steps,
    int stepsize,
    int wait,
    int extra_delay
)
{
   if (!lv) return 0;
[...]


This return also happens with the Liveview active. I'm making some error?
My question is: can you move the af without liveview active?

Thanks!
Sigfrido

nanomad

EOS 1100D | EOS 650 (No, I didn't forget the D) | Ye Olde Canon EF Lenses ('87): 50 f/1.8 - 28 f/2.8 - 70-210 f/4 | EF-S 18-55 f/3.5-5.6 | Metz 36 AF-5