Small MP4 converts to very large GIF

[billlee]

Converting a 7-sec, 634 KB MP4 yields a GIF of 26 MB!!!!!!

How to get Prism to generate a GIF of a reasonable file size?

Thank you very much! ..Bill..

[Gekker]

Hello,

Before converting, click "Video Options", resize to a smaller video and select a lower number of "Frames Per Second".

[billlee]

Thank you very much Gekker!

This makes a big difference of course. Reducing both frame rate and resolution by 50% reduced the GIF to 7 MB, only 10 times rather than 40 times larger than the original.   And of course, quality is reduced.

I was naively expecting too much of GIF. Wikipedia says:

With the introduction of widespread support of the HTML5 <video> tag in most web browsers, some websites use a looped version of the video tag generated by JavaScript functions. This gives the appearance of a GIF, but with the size and speed advantages of compressed video. Notable examples are Gfycat and Imgur and their GIFV metaformat, which is really a video tag playing a looped MP4 or WebM compressed video.

Thanks again!