final cut pro x - 1440 x 1080 prevent video stretched to fill in timeline
I did a test for you and Larry is right ... Normally if the footage or file was anything other than 1440x1080, all you would need to do it set your Spatial Conform to none. However, in this instance FCPX is forcing a size based on the magic 1440 number. To correct this, select your clip and click the drill down triangle under scale in transform. Change just the X: scale to 75% because 1440 is 75% of 1920. That should do it!