Image with some bending at DVinfo.net

Greg Manzanera · October 27th, 2003, 03:44 AM

Hi,

I bought my DVX100 4 weeks ago and I have been using it alot.

Yesterday I was recording a short film and I noticed somethig I had not yet noticed. In the lower half of the monitor I was watching some bending in the image toward the center.

It was one of those moments of doubts, mistery and stress and I didnt get to understand what was happening.

I talked with the director of photography. and he told me that it could be due to the perspective. That is a common effect he told me on some lenses, but it is correctable with an external lens...

Have you noticed something like this?? Is this some sort of astigmatism in the camera? do you get perfect alignment of the camera with vertical lines (doors, walls,....)

I am really worried abou this point as I dont know if my camera is flawed.

Best Regards,

GREG

Stephen van Vuuren · October 27th, 2003, 10:23 AM

The DVX100 Lens has some barrel distortion at full wide angle setting.

This is normal on lenses in this price range for DV cameras.

Even expensive (i.e. tens of thousand dollar lenses) have barrel distoration at extreme wide angles.

Nick Medrano · October 27th, 2003, 10:32 AM

Yea, check out the scenes in Forrest Gump, particularly the scene right after the kids (Hanks and the girl) are praying in the cornfield and it goes to a craned-wide shot over the field. Yikes!

Richard Beaudry · November 8th, 2003, 11:06 AM

Indeed we also notice some geometric distorsion and not only on the "wide portion" of the zoom range witch is typical of barrel distorsion from optical elements. This was observed on all our DVX100. I would like to have explanation from Panasonic on this!

October 27th, 2003, 03:44 AM	#1
Greg Manzanera Tourist Join Date: Aug 2003 Location: Madrid - Spain Posts: 4	Image with some bending Hi, I bought my DVX100 4 weeks ago and I have been using it alot. Yesterday I was recording a short film and I noticed somethig I had not yet noticed. In the lower half of the monitor I was watching some bending in the image toward the center. It was one of those moments of doubts, mistery and stress and I didnt get to understand what was happening. I talked with the director of photography. and he told me that it could be due to the perspective. That is a common effect he told me on some lenses, but it is correctable with an external lens... Have you noticed something like this?? Is this some sort of astigmatism in the camera? do you get perfect alignment of the camera with vertical lines (doors, walls,....) I am really worried abou this point as I dont know if my camera is flawed. Best Regards, GREG

October 27th, 2003, 10:23 AM	#2
Stephen van Vuuren Space Hipster Join Date: Oct 2001 Location: Greensboro, NC Posts: 1,508	The DVX100 Lens has some barrel distortion at full wide angle setting. This is normal on lenses in this price range for DV cameras. Even expensive (i.e. tens of thousand dollar lenses) have barrel distoration at extreme wide angles. __________________ stephen v2 www.insaturnsrings.com

October 27th, 2003, 10:32 AM	#3
Nick Medrano Major Player Join Date: Jun 2003 Location: San Antonio, TX Posts: 331	Yea, check out the scenes in Forrest Gump, particularly the scene right after the kids (Hanks and the girl) are praying in the cornfield and it goes to a craned-wide shot over the field. Yikes!

November 8th, 2003, 11:06 AM	#4
Richard Beaudry Tourist Join Date: Aug 2003 Location: Montreal, Canada Posts: 1	Indeed we also notice some geometric distorsion and not only on the "wide portion" of the zoom range witch is typical of barrel distorsion from optical elements. This was observed on all our DVX100. I would like to have explanation from Panasonic on this!