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View Full Version : Best Setting to Reduce Noise In Trees with AVCIntra



David Saraceno
06-04-2009, 09:20 AM
We have a demo HPX300 sans battery so I'm limited to what I can shoot.

We are in the PNW and are shooting some of the beautiful treed areas around our house.

Alot of noise in the trees shooting AVCIntra 1080/30p.

Can someone suggest some settings to reduce the noise.

Impressed with the quality of video - shot side by side with a 170 and the video strikingly more vibrant

thanks

CinemaElectronika
06-04-2009, 09:56 AM
David,

Why don't you try with some of the Panasonic Scene File Settings for the HPX300?

Link: http://www.panasonic.com/business/provideo/scene_files.asp?model=HPX300

I would suggest to use DIGNEG or NATURE as options... or OLTYMR with less greens for best results!

NATURE has more detail level, chroma level and master pedestal that OLTYMR...

Both are the same coring detail at +5!

Please give them a try with some variations/modification on coring, master pedestal, gamma... and PLEASE, post your pics!

Good Luck!

Henry Epstein.

Settings:

NATURE
SCENE NAME :NAT24
00005000: 1 ; VFR : OFF
00005001: 24 ; FRAME RATE: 24 FRAME
00005002: 01AB0708 ; (SYNCHRO SCAN):
00005003: 12 ; DETAIL LEVEL: 4
00005004: 8 ; V DETAIL LEVEL: 0
00005005: 13 ; DETAIL CORING : 5
00005006: 6 ; CHROMA LEVEL: -2
00005007: 9 ; CHROMA PHASE: 1
00005008: 10 ; COLOR TEMP Ach: 2
00005009: 8 ; COLOR TEMP Bch: 0
0000500A: 123 ; MASTER PED: -5
0000500B: 16 ; A.IRIS LEVEL: 0
0000500C: 2 ; DRS EFFECT: 3
0000500D: 0 ; GAMMA : HD NORM
0000500E: 2 ; KNEE: LOW
0000500F: 1 ; MATRIX: NORM2
00005010: 1 ; SKIN TONE DTL : OFF
00005011: 0 ; V DETAIL FREQ : THIN

OLTYMR
SCENE NAME :OLT24
00005000: 0 ; VFR : ON
00005001: 24 ; FRAME RATE: 24 FRAME
00005002: 01AB0708 ; (SYNCHRO SCAN):
00005003: 8 ; DETAIL LEVEL: 0
00005004: 8 ; V DETAIL LEVEL: 0
00005005: 13 ; DETAIL CORING : 5
00005006: 1 ; CHROMA LEVEL: -7
00005007: 1 ; CHROMA PHASE: -7
00005008: 8 ; COLOR TEMP Ach: 0
00005009: 8 ; COLOR TEMP Bch: 0
0000500A: 106 ; MASTER PED: -22
0000500B: 13 ; A.IRIS LEVEL: -3
0000500C: 2 ; DRS EFFECT: 3
0000500D: 5 ; GAMMA : CINELIKE D
0000500E: 2 ; KNEE: LOW
0000500F: 3 ; MATRIX: CINE-LIKE
00005010: 0 ; SKIN TONE DTL : ON
00005011: 0 ; V DETAIL FREQ : THIN

:)

Barry_Green
06-04-2009, 10:02 AM
I certainly wouldn't recommend using DRS 3 if you're trying to minimize noise! DRS 3 can add up to +18dB of gain into the picture, it's a noise monster.

I'd say gain -3, DRS off, master ped somewhere around -6 or so, cine-v or cine-d, your choice, detail 0 or lower, coring +5, normal matrix...

CinemaElectronika
06-04-2009, 10:11 AM
I certainly wouldn't recommend using DRS 3 if you're trying to minimize noise! DRS 3 can add up to +18dB of gain into the picture, it's a noise monster.

I'd say gain -3, DRS off, master ped somewhere around -6 or so, cine-v or cine-d, your choice, detail 0 or lower, coring +5, normal matrix...


Barry... Thanks! You are the man!

How do you turn off the DSR option? With the OUTPUT/AUTO KNEE selector switch turned OFF?

H.

Barry_Green
06-04-2009, 10:26 AM
You can assign DRS to either the auto knee switch, or to a user button. Make sure it's not on either or, if it's on a user button, make sure that when you press that user button it says "DRS OFF". Or just shoot in 24p or 30p, as both of those modes disable DRS.

DRS is a great feature for when you need it, but only when you need it. Treat it like any other form of electronic gain. If you need it to get the shot, then use it, but if you don't need it, don't use it.

Ben Digedig
06-05-2009, 07:07 AM
I like DRS - it does a good job of managing wide dynamic range pics. My suggestion would be to use it ONLY when you DO have a wide dynamic range!!!

If you have peak white clouds and dark shaded shadows in the same shot use it. Otherwise be careful as it CAN increase noise by punching gain into sub blacks...

I think I've twigged that the camera always defaults to having it OFF - even if your last scene had it on, but you then switch cam off and repo? When you switch back on it will be OFF? Can anyone confirm this?

Cheers

BD

BD