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Are there any HPX Scene Files for Green Screen?
Might anyone know of any scene files specifically for Green Screen shoots?
I have had poor results (noise) with both an HPX 300 and 370 with a well lit Matthews 20×20 chroma screen. Shooting in 1080p 24 Avc Intra 100. The shots look terrific on site via an sdi out to monitor, but when we get them into AE there’s a bit of noise everywhere and even more on the green screen. I have had very good results with these cameras over the past two years with a select few scene files but haven’t shot green screen but twice. I must have the camera setup way wrong and/or should be using a digital green instead of chroma green?
Thanks for any suggestions!
Understanding that I need to bring down the detail level, what else needs to be done?:
SCENE NAME :DIG30
00005000: 1 ; VFR : OFF
00005001: 30 ; FRAME RATE: 30 FRAME
00005002: 01AB0708 ; (SYNCHRO SCAN):
00005003: 12 ; DETAIL LEVEL: 4
00005004: 8 ; V DETAIL LEVEL: 0
00005005: 13 ; DETAIL CORING : 5
00005006: 7 ; CHROMA LEVEL: -1
00005007: 10 ; CHROMA PHASE: 2
00005008: 9 ; COLOR TEMP Ach: 1
00005009: 8 ; COLOR TEMP Bch: 0
0000500A: 113 ; MASTER PED: -15
0000500B: 16 ; A.IRIS LEVEL: 0
0000500C: 2 ; DRS EFFECT: 3
0000500D: 1 ; GAMMA : LOW
0000500E: 2 ; KNEE: LOW
0000500F: 2 ; MATRIX: FLUO
00005010: 1 ; SKIN TONE DTL : OFF
00005011: 0 ; V DETAIL FREQ : THIN -
3 Replies
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I think the MATRIX:FLUO is for fluorescent light and it cut the greens. Not what you want.
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A few things catch my eye:
1. Detail level – Bring Down
2. Detail Coring – Bring Down
3. Master Pedestal – I can’t see what you are shooting but you may be crushing your blacks which can add noise to your picture.
4. Turn DRS OFF. This is where a lot of noise is coming from.Matrix: Fluo is no good for green screen.
Steve Eisen
Eisen Video Productions
Vice President
Chicago Final Cut Pro Users Group -
I use an HPX170 so this might not translate perfectly to your camera, but personally I like MATRIX: Cine-Like, it over-saturates things a bit, but that does help separate your greens.
I also usually use GAMMA: LOW, but depending on what you’re recording and how even your lighting is, B. Press is also pretty good and often the least noisy.
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