View Full Version : A resolution question


Alan Kenworthy
June 21st, 2005, 12:01 AM
Hi all,
I want to confirm something with you to ensure I'm not missing something.

When shooting my kid's baseball games, I notice that the back ground
if very detailed (like a hill full of grass, brush, trees) will lose
resolution the more I pull away from it.

Specifically, if I zoom into the hillside to focus on the detail, then
zoom out to take in the game (with auto focus off) then at some point I
notice this effect. I see it in the grass on the baseball field as well.

My assumption is that there is too much detail for the camera to digitally handle, or the MPEG compression/Mini-DV can't handle the bandwidth.

I'm viewing this on an HDTV.

What say the all knowing ones? :)

Thank you,

Alan

P.S. The video is still outstanding compared to any other SD video I've seen on my HDTV.

Ken Hodson
June 22nd, 2005, 06:05 PM
What you are seeing is depth of field (dof) Based on many factors your camera will focus to different distances. If your background is blurry you have a short depth of field. Background clear, you have a long depth of field. Your lens, zoom and F-stop will all come into play. I would recommend a book on basic photo/video shooting.

Alan Kenworthy
June 22nd, 2005, 11:41 PM
What you are seeing is depth of field (dof) Based on many factors your camera will focus to different distances. If your background is blurry you have a short depth of field. Background clear, you have a long depth of field. Your lens, zoom and F-stop will all come into play. I would recommend a book on basic photo/video shooting.

Ah, so it's user error then... ;)
I WILL find a book and begin learning what I'm missing.

Ken, thank you.

Alan

Ken Hodson
June 23rd, 2005, 02:06 AM
Well good luck then.
I think you probably already have some of the best baseball home vids there are. Good to see your intrest in working out the complexities.