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▶Slow Constant Zoom Impossible - Keyframes◀

Community Beginner ,
Feb 06, 2017

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Hey guys and gals.

I have an image which I want to key frame with scale.

Start is at 100% scale and the End is at 4% scale.

It doesn't matter if the sequence is 30 seconds, 1 min or 10 mins the speed of the zoom isn't consistent which is what you'd expect when you have only two keyframes! The zoom will be nice a slow for the first 80% of the clip then the last 20% it speeds up dramatically to get to the 4%.

No other settings are on the clip.

I just want it to be a constant speed from start to finish.

Any help appreciated : )

Screen Shot 2017-02-06 at 18.10.28.png

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▶Slow Constant Zoom Impossible - Keyframes◀

Community Beginner ,
Feb 06, 2017

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Hey guys and gals.

I have an image which I want to key frame with scale.

Start is at 100% scale and the End is at 4% scale.

It doesn't matter if the sequence is 30 seconds, 1 min or 10 mins the speed of the zoom isn't consistent which is what you'd expect when you have only two keyframes! The zoom will be nice a slow for the first 80% of the clip then the last 20% it speeds up dramatically to get to the 4%.

No other settings are on the clip.

I just want it to be a constant speed from start to finish.

Any help appreciated : )

Screen Shot 2017-02-06 at 18.10.28.png

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Feb 06, 2017 0
Most Valuable Participant ,
Feb 06, 2017

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Right-click actual keyframes (right side of your screen shot) and choose Linear rather than Bezier, which is a curve, for Spatial and Temporal Interpolation. See if that helps

Thanks

Jeff

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Feb 06, 2017 0
Community Beginner ,
Feb 06, 2017

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Thanks for your reply Jeff! Im struggling to find where you mean?

What you say makes a lot of sense so I'm hopeful. : )

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Feb 06, 2017 0
Most Valuable Participant ,
Feb 06, 2017

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keyframes.jpg

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Feb 06, 2017 1
Community Beginner ,
Feb 06, 2017

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Jeff thanks so much that really has saved the day.

Been trying for DAYS!

Thank You

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Feb 06, 2017 0
Most Valuable Participant ,
Feb 06, 2017

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Glad I could help - learned a lot of what I know from forums myself!

Tip: When keyframing, motion can start and stop abruptly and look unnatural. I will often use the Ease Out and Ease In options for start and end keyframes respectively. Motion ramps up from start and down again to stop and looks better to me.

Thanks

Jeff

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Feb 06, 2017 1
Community Beginner ,
Feb 06, 2017

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I've never used that but have seen it mentioned before.

Will try that too!

Thanks SAFEHARBOR11

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Feb 06, 2017 0
New Here ,
Jun 18, 2020

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I know this is from a long time ago but I have the same problem and I did what the answer told me to do, right click the keyframes and put them on linear but it still speeds up and nothing has changed. There is not a single other forum about this so could you please help?

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Jun 18, 2020 1
New Here ,
Sep 14, 2020

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I'm having a similar problem.  My two keyframes are in linear, and at the beginning of the shot the zoom speed seems consistant, but then slows to a crawl for the last quarter of the shot or so.  I am not using ease in or ease out, but it's still having this issue. Any help would be much appreciated! 

 

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Sep 14, 2020 0
Adobe Community Professional ,
Sep 14, 2020

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Both temporal and spacial set to linear?

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Sep 14, 2020 0
New Here ,
Sep 14, 2020

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Thanks Ann Bens for reaching out!!!  Yes, all the keyframes are on linear and ease in is not on.  If you have a moment, check out the link below with two test zooms. Each zoom has a hard stop, which demonstrates there's no "ease in" on.  And I know it's a little subtle, but you can see that the zoom starts relatively fast and then slows after a few seconds.  Any thoughts you have would be appreciated.  God bless!

https://youtu.be/lo9nL1wz2xA

 

Enjoy the videos and music you love, upload original content, and share it all with friends, family, and the world on YouTube.

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Sep 14, 2020 0
Adobe Community Professional ,
Sep 14, 2020

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I cannot reproduce your issue.

Post screenshot of just the path in the Program monitor.

 

On a side note if you do use ease in and out.

First keyframe is Ease out, last keyframe is ease in.

If you want a slow movement you expand the length of the image and set keyframes wider apart.

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Sep 14, 2020 0
New Here ,
Sep 14, 2020

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Graph1.JPGGraph2.JPG

Thanks again for your help Ann. Here are the two graphs for the two zooms on my youtube link.

 

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Sep 14, 2020 0
Adobe Community Professional ,
Sep 14, 2020

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You are showing me the effect controls I was asking for the program monitor.

Something like this:

afbeelding.png

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Sep 14, 2020 0
New Here ,
Sep 14, 2020

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Thanks Ann. I'm not sure how to get to that display. Can you talk me through it? By the way, pans and tilts keep a constant speed. It's only zooms that have the issue. Really, really appreciate your help! 

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Sep 14, 2020 0
Ann Bens LATEST
Adobe Community Professional ,
Sep 15, 2020

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Turn down opacity.

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Sep 15, 2020 0