Calculating Clip Length . . .

Working with figures has never been my strong point (to put it very mildly) so can anyone help me with this:
(Don't laugh)!
Let's say I have a clip which is 108 frames long - and I want to slow it down to 80%. How many frames will it be at that speed?
Is there an easy way to calculate it?
I'm sure there must be, but my mind goes numb!
Thanks
Andy
G5 Quad 8GB. 250+500 GB HDs. G-Raid 1TB. FCP 5.1.1. Shake 4.1. Sony HVR Z1E Mac OS X (10.4.7)
"I've taught you all I know, and still you know nothing".

> Actually Cap'n - that's not quite right. New Frame Count = Original Frame Count divided by Rate Change, so you divide by .8
108 / .8 = 135
Well, if I get a clip of 108 frames in my FCP Timeline and change the speed to 80% it becomes 134 frames long - so that's aboout right - but surely the Rate Change would be 20% - or .2 ?
> EDIT - to get a little more indepth, 80% = 4/5 so you multiply by 5/4 or 1.25
Sorry, Patrick, you completely lost me here - are these fractions?
Thanks for your help though - I'm useless with figures.
Andy
G5 Quad 8GB. 250+500 GB HDs. G-Raid 1TB. FCP 5.1.1. Shake 4.1. Sony HVR Z1E Mac OS X (10.4.7)
"I've taught you all I know, and still you know nothing".

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Wrong clip length calculation

I only just noticed, but iMovie calculates clip lengths/ transition lengths wrong.
If you have two clips of 1 second, the total duration is 2 seconds. If you introduce a 10-frame transition, it reduces BOTH clips by 10 frames each, not 5 frames each. The total duration is now 1 second 15 frames.
I was making slideshows of a lot of images with cross dissolve transitions, and it is really noticeable.
This is a genuine bug, right? How does Apple get to hear about it and fix it?

If you take ten frames from the end of clip one, and ten frames from the beginning of clip two, that transition takes 20 frames.
No, you take the last 10 frames from clip one and play at the same time as the first 10 frames of clip two. At the beginning of the 10 frame transition you can see only clip 1 and at the end only clip 2.
Logically you should then reduce clip one by 10 frames, and clip 2 by 10 frames, leaving the project duration the same.
You can't do that without duplicating frames.
In the example I started with, I introduced a 10-frame transition and it reduced both clips by 10 frames, reducing the duration of the project.
Yes, that's how most transitions works.
But it shouldn't reduce the duration of the project by inserting a transition, should it?
It must, unless you duplicate frames. (The "Overlap" transition does just that.)
Take a look at:
http://geethree.com/slick/galleries/s1demopages/s1transbarnopen.html
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I'm an iMovie newbie with a question about themes. I'd like to use some of the theme elements, but whenever I drop in a clip it reverts to the original clip start point and doesn't retain any of my clip length edits. Do I need to prepare my clips differently or am I missing a setting or..? Any ideas?
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Welcome to the forum, Myrah.
You got it just about right; you're not missing something. There's a bug in themes that causes a clip placed in a Drop Zone to play from the beginning of the clip's FILE, not the beginning of the clip.
The trick is to export (share) only that clip to a Full Quality movie, then import THAT movie to the project and drop it in the Drop Zone.
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oldscotsbloke
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I have a new project consisting of 80-100 photos, all with a transition in between. Via Project Properties (Apple Key - J), I can set the photo duration but it's only in even increments -- 2 seconds, 3 seconds, 4 seconds, etc. I want to pick 2 1/2 seconds but the slider scale won't let me do that.
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Calculating Clip Length . . .

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