Infoseite // Camera choice for green screen



Frage von asbrother:


hello experts,
I recently had my first green screen video rotated
and pretty much everything wrong, what you can do wrong.

recording on mini-dv / actor too close s.screen / bad light /
receptive semi-progressive (hc96) to 16:9, etc. .....................

result: DISASTER

now I will do better and have the following questions:

1. which of these cams for keying project?

panasonic AG-HVX200E (DVCPRO was recommended to me)
Canon XL-H1 (HDV)
Sony PVW-D35 (Betacam SP)
sony HDR-FX1 (HDV)
sony HVR-Z7E (HDV)
Sony PMW-EX3 (HDV)

2. recording in 16:9 is to keyen unsuitable.
subsequently 4:3 in 16:9 is expected but even worse, right?
The finished video must be 16:9, unfortunately: (

3. more progressive or interlaced?
because it seems that in the forums, the opinions diverge to go ...

4. where do you get the complementary color, magenta her?
have the entire network umgegraben and found nothing.
maybe someone has a tip?

Many thanks for your reply.
I hope I do not have too many 1000-answered questions asked [/ b]

Space


Antwort von MarcBallhaus:

1. Quite simply: the Cam with the highest - measured - and best sharpness Farbsampling: EX3 (or EX1, no preference), you attack the main HD-SDI Out S.4: 2:2 and not to draw on smart card (4:2 : 0) AND SOUND TEST INCREASE FROM THE EDGE! (Setting Detail OFF!)

2. Anyway, only relevant when anamorph, is not Full HD.

3. P !!!!! Because there are nothing to shake off

4. Magenta? Why? For the edge? Does not really important, furthermore, how to look after the s.Ende please, so with purple hair?? Forget it. Normal edge and shine is good, just maybe not in grad green.

MB

Space


Antwort von asbrother:

The EX3 has a higher resolution than the HVX200
is a higher resolution when keyen rather than a hindrance?
I was already completely HDV discouraged because of too much visual information
when keyen. until now, I went so zb of "only" DVCPRO DVCPRO HD instead of ......

Space


Antwort von wontuwontu:

As my homemade speaker Marc Ball said, the EX3 is definitely the best choice, XDCAM synonymous when the signal on the card only with 4:2:0 and 35MBits / s is available. The image sharpness is much better, it also takes no pixel shift on. Experiments the distance between the person and the background to zoom, this creates makes the background slightly blurred, here to help the 1 / 2 "chips of the EX3 synonymous with huge again.

Otherwise, the SDI signal via a DeckLink HD grind is of course ideal, s.besten in 10bit uncompressed (or ProRes). With 4:2:2 sampling, you have more color in the Picture, which facilitate Keyen again. I am really nothing to repeat, but what is 16:9 or 4:3 with Keyen to do is unclear to me, not more than, as MB said, in anamorphic distortion.

Otherwise the rule, maximum color depth, high sampling and thus combines a high resolution.

If you are only one person films, is the 16:9 format is not that wrong, you have only the cam 90 ° tilt, so you win a lot of resolution. Otherwise you just give away 2 / 3 left and right.

A normal tip, or an Kicker (Dedo ,...) goes perfectly, with magenta intervals, I would not start focusing on you rather the rest

Space


Antwort von ed-media:

Alternatively, I would from the HD-SDI does not have a DeckLink, but the HD-SDI signal to a Convergent NanoFlash or Convergent Flash XDR use. Signal is then recorded in 4:2:2 and is loud
Convergent better quality than HDCAM or above is still of HDCAM SR in terms of "Total Picture Quality" - nearly s.Uncompressed.
That should be for the rich Keyen.

Recording is carried out at the Convergent on Compact Flash.

In addition, synonymous the Fraunhofer Institute in a similar device last year at IBC, which are looking for another manufacturer, is synonymous to Compact Flash.

Space


Antwort von wontuwontu:

The Convergent Flash XDR is in my eyes, but much too expensive for what he does. Since worth a Motu interface as the V4HD much more. This is not completely mobile, but it costs 5000 ¬ not synonymous.

An DeckLink costs just under ¬ 800 and can do much more than the flash recorder of Convergent. For the saved 4200 ¬ to buy a MacPro and two horny Eizos.

Space


Antwort von MarcBallhaus:

"asbrother" wrote: The EX3 has a higher resolution than the HVX200
is a higher resolution when keyen rather than a hindrance?
I was already completely HDV discouraged because of too much visual information
when keyen. until now, I went so zb of "only" DVCPRO DVCPRO HD instead of ......


HDV is synonymous not HD, but anamorphic (H) DV, exactly what you do not synonymous yes, because Keyen with distorted pixels is not really optimal.

Could you theoretically synonymous ne Arri borrow, and thus keyen, which will in any case the best result. Why? Because you can get 4:4:4 color, so a full program and Resolutionum about 4k, depending on the grain.

A brief statement on DV & Co.: This is only every 4 A pixel color before, only the brightness values, the rest quasi s.Farben we guess. Accordingly, the keyer s.Rand of the resulting mat also advise the colors, and that the result will not be particularly accurate, should be clear. DV and HDV potter in 4:2:0 and are therefore bad for Keyen. DV and HDV in 16:9 also distorted, which makes critical edges again, and the result by 25% worse. XDCAM recording to work with smart card is synonymous in 4:2:0, but the enormous focus here is much recovered.

4:4:4, you can m. W. film not only of Celluloid scan, so the next best 4:2:2, for example, HVX 200, EX1/EX3 over HD-SDI or Digibeta, because then you have every second pixel Farbinformatin one, that's enough.

MB

Space


Antwort von asbrother:

wow, thanks for the support.
I look now.

Space





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