Chromatic distorsion on a PMW200 at DVinfo.net

Vincent Kenis · September 27th, 2013, 02:16 AM

This is from a PMW200, full zoom in - looks totally unacceptable to me.
Is this normal, and if not, is there something I can do apart from sending the unit back ?

Thanks !

Bo Skelmose · September 27th, 2013, 03:30 AM

Cannot say what is normal for you camera - but it is a problem that I know of with very expensive cameraes and lenses when filming high conrast - like some dark things against the white sky!

Jack Zhang · September 27th, 2013, 04:04 AM

At higher zooms, the CA does indeed increase. If the center of your image has massive CA, I'd send it in. If it's diminished in the center and dramatic at the sides, this is somewhat normal at full zoom.

Vincent Kenis · September 27th, 2013, 05:51 AM

Quote:

Originally Posted by Jack Zhang

At higher zooms, the CA does indeed increase. If the center of your image has massive CA, I'd send it in. If it's diminished in the center and dramatic at the sides, this is somewhat normal at full zoom.

I thought I read somewhere that the PMW200 lens is supposed to correct chromatic distorsion electronically, at least to some degree... which is certainly not the case with my HXR-MC50, which cost me 5 tmes less money, is already 3 years old, and gives comparable results

Bo Skelmose · September 27th, 2013, 04:13 PM

The two shots are not taken under the same conditions. The one with CA are the sky white and the light comming against you - that will create CA - the other one are with blue sky and with light coming from your back.
Well - as far as I can see :)

September 27th, 2013, 02:16 AM	#1
Vincent Kenis New Boot Join Date: Mar 2010 Location: Bruxelles, Belgique Posts: 14	Chromatic distorsion on a PMW200 This is from a PMW200, full zoom in - looks totally unacceptable to me. Is this normal, and if not, is there something I can do apart from sending the unit back ? Thanks ! Attached Thumbnails Last edited by Vincent Kenis; September 27th, 2013 at 03:04 AM.

September 27th, 2013, 03:30 AM	#2
Bo Skelmose Major Player Join Date: Apr 2008 Location: Denmark Posts: 495	Re: Chromatic distorsion on a PMW200 Cannot say what is normal for you camera - but it is a problem that I know of with very expensive cameraes and lenses when filming high conrast - like some dark things against the white sky!

September 27th, 2013, 04:04 AM	#3
Jack Zhang Inner Circle Join Date: May 2005 Location: Burnaby, BC, Canada Posts: 3,053	Re: Chromatic distorsion on a PMW200 At higher zooms, the CA does indeed increase. If the center of your image has massive CA, I'd send it in. If it's diminished in the center and dramatic at the sides, this is somewhat normal at full zoom.

September 27th, 2013, 04:13 PM	#5
Bo Skelmose Major Player Join Date: Apr 2008 Location: Denmark Posts: 495	Re: Chromatic distorsion on a PMW200 The two shots are not taken under the same conditions. The one with CA are the sky white and the light comming against you - that will create CA - the other one are with blue sky and with light coming from your back. Well - as far as I can see :)