Image motion (zoom) is there a sensible limit on filesize

_Angus_

Senior Member Joined: Feb 19, 2011 19:59 Messages: 180 Offline

Solved by

Nov 23, 2012 15:51

Hi guys,

The US holiday movie epic continues apace and I'm just wondering, I want to try and convey the scale of a picture I took across the desert in Arizona. I made a composite photo of about 6 frames to produce a really high resolution enlargement, and I thought I would like to use it in my video, starting off zoomed right in on a truck in the distance and then zoom out slowly to emphasise the vastness of it all.

The jpeg I've got is 17 megs, or I could use a much smaller picture around 6 megs. My system is quite modest and its difficult to gauge the quality during the editing. Is there a sensible limit to use with an image or will I basically always get a quality benefit with a larger image?

Thanks.

ynotfish

Senior Contributor Location: N.S.W. Australia Joined: May 08, 2009 02:06 Messages: 9977 Offline

Nov 24, 2012 01:21

Hi Angus -

Absolutely, whatever you do, keep the image at its original (stitched) resolution... particularly if you going to begin with a zoom-in on the truck then zoom out.

Using the lower res image is likely to present you with a very blurry truck!

I could post some comparison examples, but the size of the images is a little restrictive (given forum server speed). There's one attached but it's been downsized. The original (on the left) was 6255x3518. The one on the right was resized to 1920x1080 before both were zoomed to the same point in PD. It's easy to spot the difference in the produced file than in this resized image.

Cheers - Tony


Filename	Original_Resized (zoom).png	Download
Description
Filesize	2761 Kbytes
Downloaded:	131 time(s)

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alvincht

Member Joined: Sep 20, 2012 11:52 Messages: 58 Offline

Nov 24, 2012 15:49

Hi Angus, I'm just wondering on how you were able to go around this. Jpeg for me is not a preferred format. PNG perhaps?

_Angus_

Senior Member Joined: Feb 19, 2011 19:59 Messages: 180 Offline

Nov 24, 2012 16:52

Quote: Hi Angus, I'm just wondering on how you were able to go around this. Jpeg for me is not a preferred format. PNG perhaps?

Thanks ynotfish, the image spoke several thousand words - once I looked carefully.

alyincht: I edit my pictures in TIF so that everytime I do some work and save I'm not losing any quality, but I tend to use a full quality Jpeg when I'm finished. I've not detected a loss of quality, but having said that I'm probably a bit behind the times with my filetypes.