Unusual transition during nascar race at DVinfo.net

Don Parrish · April 29th, 2003, 08:48 AM

I was slowing down a shot of Ricky Craven winning a race a few weeks ago to see if he intentionally drove into another car at the very end of the race. I paused the video and went frame by frame and discovered something very unusual.. On the last turn of the last lap one camera angle was of the cars in the last turn, when the camera angle transited to the starightaway camera the transition consisted of what looked like a ring effect. It reminded me of looking thru the bottom of a thick coke bottle. At first the shot was made up of rings then became clear from the center out as if looking through a drop of water. At normal speed it wasn't apparent so why such a transition. It almost had the appearence of being a lens effect of two pieces of glass interacting. Why would such a thing occur. I wouldn't think it was intentional.

Ben Lynn · April 29th, 2003, 03:46 PM

The TD probably just threw that in there on his own discretion for effect.

Ben Lynn

James Emory · April 29th, 2003, 03:49 PM

Can you make that clip available for viewing? I would like to see that transition you're describing.

Don Parrish · April 29th, 2003, 04:20 PM

I don't have a website but will do a couple of frame grabs and see if I can send them as jpegs.

Bill Pryor · April 29th, 2003, 09:28 PM

That sounds a little bit like what happens if you are shooting with a lens that has a built-in 2X extender and you flip it on or off while you're recording.

Don Parrish · May 1st, 2003, 06:48 PM

I have sent emails with frames of transition attatched, to those that replied.

Don Parrish · May 2nd, 2003, 10:26 AM

a couple of observations, the camera angle actually never changed, also the fox-nascar logo did not appear to be distorted which meant the effect/cause was before the transmitting facility. Looks like the lens doubler may have been right on the nose.

April 29th, 2003, 08:48 AM	#1
Don Parrish Major Player Join Date: Dec 2001 Location: Tavares Fla Posts: 541	Unusual transition during nascar race I was slowing down a shot of Ricky Craven winning a race a few weeks ago to see if he intentionally drove into another car at the very end of the race. I paused the video and went frame by frame and discovered something very unusual.. On the last turn of the last lap one camera angle was of the cars in the last turn, when the camera angle transited to the starightaway camera the transition consisted of what looked like a ring effect. It reminded me of looking thru the bottom of a thick coke bottle. At first the shot was made up of rings then became clear from the center out as if looking through a drop of water. At normal speed it wasn't apparent so why such a transition. It almost had the appearence of being a lens effect of two pieces of glass interacting. Why would such a thing occur. I wouldn't think it was intentional.

April 29th, 2003, 03:49 PM	#3
James Emory Regular Crew Join Date: Aug 2002 Location: Atlanta, Georgia Posts: 1,892	Effect Can you make that clip available for viewing? I would like to see that transition you're describing.

April 29th, 2003, 03:46 PM	#2
Ben Lynn Major Player Join Date: Mar 2003 Location: Bloomington, IL Posts: 636	The TD probably just threw that in there on his own discretion for effect. Ben Lynn

April 29th, 2003, 04:20 PM	#4
Don Parrish Major Player Join Date: Dec 2001 Location: Tavares Fla Posts: 541	I don't have a website but will do a couple of frame grabs and see if I can send them as jpegs.

April 29th, 2003, 09:28 PM	#5
Bill Pryor Contributor Join Date: Jan 2003 Location: Kansas City, MO Posts: 4,449	That sounds a little bit like what happens if you are shooting with a lens that has a built-in 2X extender and you flip it on or off while you're recording.

May 1st, 2003, 06:48 PM	#6
Don Parrish Major Player Join Date: Dec 2001 Location: Tavares Fla Posts: 541	I have sent emails with frames of transition attatched, to those that replied.

May 2nd, 2003, 10:26 AM	#7
Don Parrish Major Player Join Date: Dec 2001 Location: Tavares Fla Posts: 541	a couple of observations, the camera angle actually never changed, also the fox-nascar logo did not appear to be distorted which meant the effect/cause was before the transmitting facility. Looks like the lens doubler may have been right on the nose.