Editing dimensions on canvas

  • 1
  • Question
  • Updated 3 years ago
When I import a media file with 1440 x 1080 dimensions in Camtasia 8.6 and use Editing Dimensions of 1280 x 720, I still have to stretch the video to fill the entire canvas. Am I doing something wrong here? The imported video is 1440 x 1080 and thus has bigger dimensions than the Editing Dimensions in Camtasia. It should fill the canvas by itself, or is manual adjustment always required whatever the dimensions of the imported file?
Photo of Michiel Brand

Michiel Brand

  • 9 Posts
  • 0 Reply Likes

Posted 3 years ago

  • 1
Photo of kayakman

kayakman, Champion

  • 6869 Posts
  • 2195 Reply Likes
the 2 sets of dimensions you mention have different aspect ratios [W/H]

you should always use editing dimensions that equal the media dimensions, which in turn should be the dimensions used when producing

using editing dimensions of 1280x720 with 1440x1080 media will give poor results [distortion]

try editing dimensions of 1440x1080, or, use editing dimensions of 1280x720, but you will have to scale down the media size until the height fits 720; this will give you borders on sides of the media, but the image will not be distorted

however, sizing down the media will cause a loss in quality
(Edited)
Photo of brucerothwell

brucerothwell

  • 297 Posts
  • 83 Reply Likes
The ratio of the 1440x1080 video is not "16:9" like the 1280x720 canvas size:

- 16/9 = 1.777
- 1280/720 =  1.777
-  1440/1080 = 1.333  (this is actually "4:3")

Therefore, you have to stretch the clip horizontally to avoid vertical black bars.

I suspect you captured a laptop screen?

A 16/9 resolution on a laptop screen that has a max horizontal size of 1440 is approx. 1440x810:

- 1440/1.777 = 810.3

However, a 16/10 resolution is likely the closest choice you will have for capture on a 1440 laptop screen:

- 1440/1.6 = 800
(Edited)
Photo of brucerothwell

brucerothwell

  • 297 Posts
  • 83 Reply Likes
To further clarify one of Kayakman's points:

It is best to be aware of what your final publishing dimensions will be, so you can capture screens with that in mind, for 3 reasons:
  1. Avoid having to modify the w/h ratio of clips, causing a distorted image.
  2. Avoid veritcal or horizontal black bars (if it is a must, I prefer horizontal bars -- for a more "cinema" look)
  3. Avoid forcing the scaling of clips upon render -- this can slow the render times significantly.
Photo of Michiel Brand

Michiel Brand

  • 9 Posts
  • 0 Reply Likes
Thanks guys! Okay, so different aspect ratios is what is the issue here! Makes sense.

So the best thing to do would be, if I choose final publishing dimensions of 1280x720 (which is recommended as best size for YouTube), I should generally also record my screen at 1280 x 720? Is this true, also even if I want to record only a smaller window, meaning the rest of the screen that I capture contains irrelevant background?
Photo of Timbre4

Timbre4, Champion

  • 680 Posts
  • 272 Reply Likes
Yes, go with 1280 x 720 recordings; you can either do zooms to the smaller regions or even shoot smaller sub clips and lay that over the top of your full size capture. I'm sure other users can provide additional ways to focus on a particular region of the screen.