Any progress on making non-MF cameras scriptable?

mcaramb

« on: 05 / June / 2011, 11:25:29 »

Advertisements

Just checking to see if there is any way to make a non-MF camera have a scriptable focus.

Interestingly, get_focus comes back with a value, but set_focus doesn't apply the setting of course.

There doesn't appear to be a way to do so. Also, I've read about a CHDK menu option to allows a manual distance override, but I'm assuming that option is not present if your camera doesn't have manual focus, correct?

I would like to set a fixed focus in my little SD500 if possible.

Thanks,
Mike

Logged

reyalp

13502

Re: Any progress on making non-MF cameras scriptable?

« Reply #1 on: 05 / June / 2011, 18:07:33 »

Quote from: mcaramb on 05 / June / 2011, 11:25:29

There doesn't appear to be a way to do so. Also, I've read about a CHDK menu option to allows a manual distance override, but I'm assuming that option is not present if your camera doesn't have manual focus, correct?

Not correct. Subject distance override exists mostly to give manual focus capability to cameras that don't have it. However, it isn't functional on all cameras.

Logged

Don't forget what the H stands for.

mcaramb

Re: Any progress on making non-MF cameras scriptable?

« Reply #2 on: 05 / June / 2011, 18:13:31 »

Ah! I couldn't find it. Am I perhaps just looking for it in the wrong place? Where is it in the menu tree? Or, if my SD500 isn't compatible, is the option simply not present?

Logged

reyalp

13502

Re: Any progress on making non-MF cameras scriptable?

« Reply #3 on: 05 / June / 2011, 19:17:24 »

http://tools.assembla.com/chdk/browser/trunk/platform/ixus700_sd500/platform_camera.h has
#undef CAM_CAN_SD_OVERRIDE

which suggests it was never implemented for this camera. The original development thread for this camera may have more information on why.

If you are a programmer, you can look at other cameras which do have CAM_CAN_SD_OVERRIDE and not CAM_HAS_MANUAL_FOCUS, and try to implement the same for yours. Otherwise, you are out of luck unless someone else decides to do it.

Logged

Don't forget what the H stands for.

mcaramb

Re: Any progress on making non-MF cameras scriptable?

« Reply #4 on: 06 / June / 2011, 12:08:28 »

Thanks for checking into this for me, but alas, no I'm no "c" programmer. Simple scripting is about as far as I go. To make it worse, I'm using the German version to take advantage of set_prop, which also isn't in the english version. So, I'd have to find a german programmer to do it

I suppose I'm out of luck

-Mike

Logged

reyalp

13502

Re: Any progress on making non-MF cameras scriptable?

« Reply #5 on: 06 / June / 2011, 16:26:01 »

Quote from: mcaramb on 06 / June / 2011, 12:08:28

Thanks for checking into this for me, but alas, no I'm no "c" programmer. Simple scripting is about as far as I go. To make it worse, I'm using the German version to take advantage of set_prop, which also isn't in the english version.

All CHDK has set_prop. Maybe you mean the set_config stuff ?

Quote

So, I'd have to find a german programmer to do it

Not really, changes like this are generally applied to both. But you would have to find a programmer to work on it. I'll try to take a look at some point if no one else does, but it won't be quick...

Logged

Don't forget what the H stands for.

mcaramb

Re: Any progress on making non-MF cameras scriptable?

« Reply #6 on: 07 / June / 2011, 09:21:42 »

That's alright. This project needs to be wrapped up in the next few weeks. I'll think of something else

-Mike

Logged