This IS the Avid L2: Re: [Avid-L2] 4k to simulate 2 cam int

Monday, April 11, 2016

Re: [Avid-L2] 4k to simulate 2 cam int

One other caveat. Use high quality camera, lens, and shooting technique. This workflow pushes the optical quality limits of the camera and lens hard. When you shoot 4k to use the entire frame, no problem. Same optical image as HD but more pixels. Looks great. But when you punch in, you are magnifying the optical quality limits of camera and lens. Your 4K "punch-in" will simply not look as good as 1080p original from the same camera. Same number of pixels, but lower optical resolution.

Never occurred to me until I saw it the first time. Major "duh" moment.

Cheers,

tod

On Apr 8, 2016, at 12:53 PM, Greg Huson Greg@SecretHQ.com [Avid-L2] <Avid-L2@yahoogroups.com> wrote:

We use this technique sometimes, but it's not quite the same as two-camera. The cut-in still looks like a jump, because the lensing and angle are identical. You don't get that almost sub-conscious change of perspective that comes from the longer lens on the close-up, plus the slight change of angle.

If you're not inter-cutting, then, great, but I still prefer the longer lens in the CU. actually, we've taken to shooting 4K on the wide shot and then get 3 sizes!, or at least some reframing. Also, we use it for hand-held hosted interviews/conversations- we'll shoot the interviewer on an over-the-shoulder-ish 4K 2-shot and the interviewee on a single or slightly dirty single. Then punch in on the host as needed- just don't cut from the 2x to the host cu.

Our workflow technique is typically backup camera original to spinning media and LTO, then HD dailies (dnx36) from Resolve with viscode on the edge of the frame- including the file names from the camera which include the original frame size. That way, you know how much you can reframe the shot.

During grade, match back to camera original, and the resize comes through aaf (or xml.)

We tried making close and wide dailies from the same camera master but found that the 'guesstimated' reframe was never quite right- more distracting than the blow-up in offline approval. Not worth assistant time to make double dailies.

YMMV.

GH

________________________
Greg Huson
Secret Headquarters, Inc
Greg (at) SecretHQ.com
www.SecretHQ.com
DigitalServiceStation.com

> On Apr 8, 2016, at 10:11, Lou Wirth loutv@mindspring.com [Avid-L2] <Avid-L2@yahoogroups.com> wrote:
>
> I have a client shooting dozens of interviews around the country. They are shooting 1080HD and using 2 cameras. Simple medium shot and close up. They want to consider cutting back to one camera and shooting 4 K allowing us to blow up the CU shot in post.
> I'm just wondering what the workflow would be for this technique. Would I have AMA the interview wide shot and transcode, then AMA it again and use frame flex to zoom in and transcode again? Would I have to transcode the interview twice?
>
> Have not received media to try this out yet but trying to get a jump on it.
>
> thanks
> Lou
> Lou Wirth Productions
> 500Tamal Plaza, Suite 522
> Corte Madera, CA 94925
> www.louwirth.com
> 415-924-9411p
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