View Full Version : Shutter angle


Ann Bens
October 13th, 2012, 06:46 AM
Does anyone know where I can find some info about shutter speed/angle and the xf100 (or xf300)
I know for 1/50 (as i am in Pal-land) the angle should be 173 degrees but there is no such value in the camera.
Closest is 180 which is for 24fps.
Am I missing something here.
Thanks.

Bill Engeler
October 13th, 2012, 09:39 AM
Are you shooting 24fps or 25? The 173° shutter is to reduce flickering of 50hz lights when shooting 24fps. As you say you are in PAL-land, you're probably shooting 25fps, and 180° is fine.

Ann Bens
October 14th, 2012, 06:20 AM
OK thanks.
But i am also looking for some indepth information in relation to videocamera's

Al Bergstein
October 14th, 2012, 06:32 PM
Doug Jenson touched on it a while back. there wasn't a lot on this thread. Maybe it will be helpful.
http://www.dvinfo.net/forum/canon-xf-series-hd-camcorders/491238-shutter-angle.html

Alister Chapman
October 15th, 2012, 12:59 AM
I wrote an article about ti here:
Shutter, shutter speed and shutter angle. | (http://www.xdcam-user.com/2011/03/shutter-shutter-speed-and-shutter-angle/)

The key thing to note is that the angle purely defines the shutter speed, which with angle is related to and changes according to the frame rate while speed in seconds is fixed and does not change if you change frame rate. The actual operation of the shutter is identical whichever method of displaying the speed you use. Really on a video camera fractions of a second is far more useful than degrees, degrees is just fashionable because it sounds cool but when your trying to sync shutters to mains frequencies or lighting frequencies degrees are a PITA.

Ann Bens
October 16th, 2012, 04:10 AM
Both thanks for the articles.

Rodolfo Pena
October 16th, 2012, 11:58 AM
Hi Ann!
I believe in the canon's XF series lerning videos there is one regarding shutter. You may take a look at those videos.

Canon DLC: Gallery: XF Professional Camcorder Tutorials (http://www.learn.usa.canon.com/galleries/galleries/tutorials/xf_tutorials.shtml)

Ann Bens
October 16th, 2012, 01:48 PM
Thanks, that is great.