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Ken Burns Effects

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#1 nickruss
Hi,

On your overview page, it says "Make Ken-Burns effects (pan/zoom)"

Please could you advise how this is achieved in your excellent software?

Kind regards,

Nick
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#2 Gunther
Thats easy: crop the first image, synchronize to all images, crop the last image differentliy, make a transition - the crop will be animated. You can move, zoom, rotate...

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#3 nickruss
(2011-03-16, 00:47)gwegner Wrote: Thats easy: crop the first image, synchronize to all images, crop the last image differentliy, make a transition - the crop will be animated. You can move, zoom, rotate...

Great, thanks for the speedy response! That is really simple to do.

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#4 gks
(2011-03-16, 00:47)gwegner Wrote: Thats easy: crop the first image, synchronize to all images, crop the last image differentliy, make a transition - the crop will be animated. You can move, zoom, rotate...

But how to maintain the aspect ratio?
I'm new to this forum and timelapse. I tried a quite simple Ken Burns Efeects and it's as easy as you're explaining it. But I noticed that the aspect ratio is changing by about 5 px during the animation (e.g. 1925x1080 instead of 1920x1080). How can I avoid this?

Thanks in advance, gks
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#5 Gunther
You can lock the aspect ratio in Lightroom via the "lock"-symbol. Please make sure that you define a custom aspect ratio of 16:9 and apply that to the first and last image (respectively all key-frames).
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#6 gks
(2011-06-27, 23:02)gwegner Wrote: You can lock the aspect ratio in Lightroom via the "lock"-symbol. Please make sure that you define a custom aspect ratio of 16:9 and apply that to the first and last image (respectively all key-frames).

Thanks for the quick reply !!!
I'm sure I did exyctly what you are proposing - I'll try it again.
Is there any possiblility to check the locking in LRT?

BTW: Great Idea - Great Work - Well Done !!!
I'm sure I'll use it quit often and will donate some http://forum.lrtimelapse.com/images/icons/smile.gif
And I already have some ideas for possible improvement - let's see.

-- gks
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#7 Gunther
(2011-06-27, 23:13)gks Wrote: Is there any possiblility to check the locking in LRT?
No, because the lock status is not being written to XMP.

Quote: I'm sure I'll use it quit often and will donate some
I would appreciate that ;-)

Quote: And I already have some ideas for possible improvement - let's see.
Please let me know your ideas. Every input is welcome!
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#8 gks
Hi,

I've again tested it with a aspect ratio of 1:1 exactly as you proposed:
- develop 1st picture, chang cropping with locked aspect ratio of 1:1, mark as keyframe
- synch all settings to all pictures
- develop last picture, rotate by some amount, marked as keyframe
in LRT:
- mark the whole sequence
- hit botton for linear transition (2nd test with auto transition)
- save
back in LR:
- import meta data from file
- 1st and last pictures (keyframes) have aspect ratio of 1:1
- inbetween I get significantly different aspect ratios depending on the amount I rotated the last keyframe

So, what's wrong?
I'm using LRT 1.3.1 (latest download) and LR 3.4.

Greetings, gks

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#9 Gunther
Hello gks,
It never happend to me "in real conditions" but I could reproduce this issue when using auto-transition and setting crops that are very near to the borders. Lightroom has a very strange algorithm to calculate and store the crop parameters sometimes this interfers with the smoothing of the auto-transition, because every corner currently is animated separately (I will have to change this)

I'm going to look into this a little bit further if I have time, meanwhile my advice is: try to avoid border contact when rotating because in that case Lightroom not only rotates but also shifts the crop thus leading to sometimes unexpected results. And try not to make too exagerated changes of direction when using auto transition.

Thank you for finding this.
Best regards
Gunther
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#10 gks
(2011-06-28, 11:44)gwegner Wrote: Hello gks,
It never happend to me "in real conditions" but I could reproduce this issue when using auto-transition and setting crops that are very near to the borders. Lightroom has a very strange algorithm to calculate and store the crop parameters sometimes this interfers with the smoothing of the auto-transition, because every corner currently is animated separately (I will have to change this)

I'm going to look into this a little bit further if I have time, meanwhile my advice is: try to avoid border contact when rotating because in that case Lightroom not only rotates but also shifts the crop thus leading to sometimes unexpected results. And try not to make too exagerated changes of direction when using auto transition.

Thank you for finding this.
Best regards
Gunther

Thanks for looking into it!!!
Last comment for now: I did the above described "experiment" with corpping a square out fo the center of the pictures - far away from the borders using linear transition.
Just to let you know when you're looking into it ;-)

Greetings, gks

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