DVX200 and Green Screen?

W

Wesley Byram

Well-known member
I've been eyeing the DVX200 for a little while now, and I'm wondering how it might hold up for greenscreen shooting. On paper, it should be dynamite: Real 4k resolution. Sharp lens without much CA to speak of. 10-bit 4:2:2 output. Etc. However, I'm a bit concerned by the reports of image ghosting mentioned here, here, here, and here. This seems like the sort of thing that would throw off a good key. Then again, maybe it was quietly fixed in one of the firmware updates and is no longer an issue.

So, does anyone with a DVX have any real-world experience shooting greenscreen with it? Thanks.
 
I've shot quite a bit on green screen so far (a job with 8 hours of footage, and just shot a second with 6 hours of footage that I'll start keying tomorrow), corporate stuff where it's mostly stand-ups or people sitting at a desk, so not a ton of motion. It's been great for it. The key pulls well (certainy cleaner than the GH4 at 4k) and I've never seen the ghosting thing. I've shot it all in a regular scene file and not in v-log. This was also all 8-bit internal to MOV as I only have a Ninja that doesn't do 4k.
 
Have either of you noticed if your image comes out a tad yellow? I have been fighting this battle for a while now. I have updated the firmware and even downloaded all the scene files but still not getting an image that looks normal from our studio. What scene files are you using if I may ask?
 
jbudlives said:
Another Question re: Green Screen.
Is their any benefit whatsoever for shooting in VLog for keying?
Click to expand...

I don't think so. If your green screen area is lit well, then I would shoot at 4K 60FPS, to get the 150 MBPS, higher bit rates are better for GS.
 
MarcAtVeeam said:
Have either of you noticed if your image comes out a tad yellow? I have been fighting this battle for a while now. I have updated the firmware and even downloaded all the scene files but still not getting an image that looks normal from our studio. What scene files are you using if I may ask?
Click to expand...
THe camera seems to have some problem with a certain type of low CRI rating led. I want to know a solution too.
 
Okay, my green screen images are coming out a little on the yellow side (using Barry's Scene file #4). Any idea how to dial this yellow out enough to get a good flesh tone? See the example below...Green_Screen_Example.jpg
 
David W. Jones said:
Proper White balance.

Select his White shirt sleeve in post.
Click to expand...

Thanks David. The camera was white balanced to the lighting before the talent arrived. The man on the left has a shirt that is white checked and appears to be white in all the files I have, yet the skin tones are yellow.
 
MarcAtVeeam said:
Thanks David. The camera was white balanced to the lighting before the talent arrived. The man on the left has a shirt that is white checked and appears to be white in all the files I have, yet the skin tones are yellow.
Click to expand...


Have you turned off auto knee and switched to manual?

Also what chart did you white balance to, as your green screen looks yellow as well?
 
mapper65 said:
I would try the GH4 Still Like scene file. I'm getting very accurate color reproduction with it.
Click to expand...

Thanks Mapper, I will pull that one up and take a look.

David W. Jones said:
Have you turned off auto knee and switched to manual?

Also what chart did you white balance to?
Click to expand...

Honestly, I am not 100% certain. I will go take a look and let you know what I find out. Thanks again.

Knee was in auto, switched it off. White balance off a piece of white foam core for now. We don't have any charts in house yet.
 
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