Ghost in the machine at DVinfo.net

Jack Duggan · August 3rd, 2010, 10:29 PM

So I’m still getting used to My A1s, and I love it. I just finished a set of short films and have been dealing with a ghosted image in some of the shots. It’s some type of motion blur I think, it is always from the last frame or two. The movement in the shots are not that fast. I want figure it out so I can avoid it in the future. I have been shooting at 24 fps, with the shutter set about 250 -300. I have tried raising my shutter speed but it still shows up.
Any thought on what I’m doing wrong and how to avoid this?

Jack Duggan · August 3rd, 2010, 11:22 PM

this is what I'm talking about.

Panagiotis Raris · August 4th, 2010, 11:55 AM

i forget if it is NR1 or NR2, but in-cam noise reduction does that when turned on; i always leave it off (post has much better noise reduction options)

Jack Duggan · August 4th, 2010, 10:15 PM

Thanks for the reply, and you're right I have NR2 on. So, with that I have come to the end of using presets. I have more trouble with them then they are worth. I'll just shoot it straight and color correct in post.

Alex DeJesus · August 9th, 2010, 11:55 PM

I just did a shoot Saturday and got quite a bit of ghosting trailing image problems. I was using a preset Panavision, but with NR1 on high. Funny thing is, i just used the same preset last week in another club (dark place) and picture was perfect. I turned NR1 off and got rid of most of it, but now I have to deal with grain.

August 3rd, 2010, 10:29 PM	#1
Jack Duggan Regular Crew Join Date: Mar 2008 Location: Hawaii Posts: 54	Ghost in the machine So I’m still getting used to My A1s, and I love it. I just finished a set of short films and have been dealing with a ghosted image in some of the shots. It’s some type of motion blur I think, it is always from the last frame or two. The movement in the shots are not that fast. I want figure it out so I can avoid it in the future. I have been shooting at 24 fps, with the shutter set about 250 -300. I have tried raising my shutter speed but it still shows up. Any thought on what I’m doing wrong and how to avoid this? __________________ Jack Duggan

August 3rd, 2010, 11:22 PM	#2
Jack Duggan Regular Crew Join Date: Mar 2008 Location: Hawaii Posts: 54	this is what I'm talking about. Attached Thumbnails __________________ Jack Duggan

August 4th, 2010, 10:15 PM	#4
Jack Duggan Regular Crew Join Date: Mar 2008 Location: Hawaii Posts: 54	Thanks for the reply, and you're right I have NR2 on. So, with that I have come to the end of using presets. I have more trouble with them then they are worth. I'll just shoot it straight and color correct in post. __________________ Jack Duggan

August 9th, 2010, 11:55 PM	#5
Alex DeJesus Regular Crew Join Date: Dec 2004 Location: Henderson, NV Posts: 177	Ghosting in image I just did a shoot Saturday and got quite a bit of ghosting trailing image problems. I was using a preset Panavision, but with NR1 on high. Funny thing is, i just used the same preset last week in another club (dark place) and picture was perfect. I turned NR1 off and got rid of most of it, but now I have to deal with grain.

August 4th, 2010, 11:55 AM	#3
Panagiotis Raris Major Player Join Date: Apr 2010 Location: Reading, PA USA and Athens, Greece Posts: 269	i forget if it is NR1 or NR2, but in-cam noise reduction does that when turned on; i always leave it off (post has much better noise reduction options)