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zoom during exposure on sx100 IS

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Offline ISO64

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  • 20
  • S3 IS + A550
Re: zoom during exposure on sx100 IS
« Reply #60 on: 23 / December / 2008, 20:39:31 »
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nice examples.
now try with flash :D

like already written in the thread, this effect normally is achieved in slrs/dslrs by manually zooming while exposing.
by the way can you also test a FOCUS shift during ONE exposure!? though this happens quiete fast (the focus changing), but also can lead to beautiful images. dont have a cam on me right now, nor do i have the time.
also a technique in the same playground: tilting your camera in the moment you press the shutter (in conjunction with flash) or pushing/dragging your camera towards the subject. this *might* be implemented in the future, for example when we include dataghosts IS-correction during exposure.


And what would be the command to sweep through he focus range? Is it:
set_focus (distance)

I tried a variation to ZinTv1s.lua script by j13l and it did not work as smoothly as when it zomed through full zoom range.
Any ideas?

Re: zoom during exposure on sx100 IS
« Reply #61 on: 30 / December / 2008, 22:52:36 »
i cant get any of the script to work on my SD800. I have the latest build. My camera just zoom then locked with no picture taken. I have to restart my camera afterwards. I think a zoom override will provide the best control without doing all the scripts.

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Offline Hacki

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  • SX100
Re: zoom during exposure on sx100 IS
« Reply #62 on: 31 / December / 2008, 01:48:40 »
What happens when you zoom in + out once before starting the script? Some of the ixus (aka SD*) cams behave like that when you try to set the SD (subject distance - manual focus..) override, but triggering the zoom once helps..

Btw, i dont think a specific zoom override function would work better than that script, they both need to access the same function in the camera firmware to set the zoom - when that function crashes the camera while taking an exposure, theres not much you can do (i guess. no guarantee i'm right.)


Re: zoom during exposure on sx100 IS
« Reply #63 on: 07 / January / 2009, 23:04:10 »
I tried zoom in/out before starting script. Now I notice another problem. The zoom doesnt work when the camera entered <alt> mode loaded with ANY script!


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Offline fe50

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  • IXUS50 & 860, SX10 Star WARs-Star RAWs
    • fe50
Re: zoom during exposure on sx100 IS
« Reply #64 on: 08 / January / 2009, 05:25:51 »
I tried zoom in/out before starting script. Now I notice another problem. The zoom doesnt work when the camera entered <alt> mode loaded with ANY script!
--> Zoom in & out first, outside <Alt> mode - then enter <Alt> mode...

Re: zoom during exposure on sx100 IS
« Reply #65 on: 02 / October / 2009, 19:09:33 »
Someone said this script may not work in future versions of CHDK without zoom override. Does it work with the current CHDK still?

 

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