3 Replies Latest reply on Feb 7, 2008 6:45 AM by Steven L. Gotz

# Zooming From HDV to DV

Is my math correct that you can zoom HDV (1440 H x 1080 V) by exactly 225.0% before you begin losing resolution in a DV (720 H x 480 V) project? My math is 1080 / 480 = 2.25 (or 225%, based solely on Vertical lines).

Or do you do the math based on Horizontal lines (1440 vs. 720), which would therefore mean you lose resolution at 200.0% (1440 / 720 = 2.0)?
• ###### 1. Re: Zooming From HDV to DV
Zooming in on HDV immediately loses resolution. If you put the HDV in an SD project, then that means you can zoom out less than needed to fit the whole HDV frame in the smaller project frame size.

Don't get the idea that you can zoom into HDV and still have it look better than DV. It doesn't work that way.
• ###### 2. Re: Zooming From HDV to DV
I think what Eric meant is that if you uncheck Scale to Frame Size for your HDV clips, you can magnify them to a certain degree without losing quality. That degree will be in effect a 100% scale. Only beyond that does quality regrade.
• ###### 3. Re: Zooming From HDV to DV
If that is what he meant, then yes, it works great. But in an HDV project, zooming past 100% loses quality in a hurry, and downscaling it later to SD frame sizes is a counter-productive workflow.