Did movies ever stop shaking?

[John Doe]

I'm looking at a movie Watchers (1988). The credits are visibly
shaking left and right. That's because it was on film? If that's
true, and if it stopped at some point in time... About what year
should there be no more shaking, like during the credits? I am
speaking roughly, not suggesting that everybody would have changed
to digital recording at the same time.

[Captain Infinity]

Once Upon A Time,

Maybe you should just cut down on the coffee, eh?


**
Captain Infinity

[John Doe]

Sitting on a corn cob...

Captain Infinity <Infinity captaininfinity.us> wrote:

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> Subject: Re: Did movies ever stop shaking?
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[ralph]

Maybe this link will help answer your question:

http://www.widescreenmuseum.com/special/ben-hurdvd4.htm

[moviePig]

On Feb 1, 9:31 am, ralph <ralphben...@nowreviewing.com> wrote:
> Maybe this link will help answer your question:
>
> http://www.widescreenmuseum.com/special/ben-hurdvd4.htm

The compression savings they attribute to eliminating bob-and-weave
seems contrary to my understanding that compression technology easily
handles wholesale lateral displacement of otherwise unaltered image
areas.

--

- - - - - - - -
YOUR taste at work...
http://www.moviepig.com

[ralph]

Had remembered that Martin had addressed the “bob and weave.” No
technophile here, so I’ll happily accede to you expertise on John’s
question.

[moviePig]

No expertise here. I found the article quite interesting, e.g., in
suggesting that bob&weave is more common than I'd have expected. (I
am "expert" enough to know that film-transports used for exacting f/x
work -- likely obsoleted by digital, now -- had sprocket pins fixed to
a stationary block, with the film being moved into place and pressed
down onto them. Take that, bob&weave...)

[anim8rfsk]

Digital recording isn't the point in time you're looking for, and everybody
hasn't gone to it yet.

--
sent from a borrowed ipad

[JTEM]

ralph <ralphben...@nowreviewing.com> wrote:

> Maybe this link will help answer your question:
>
> http://www.widescreenmuseum.com/special/ben-hurdvd4.htm

Did you hear about the gay twins, Neal & Bob? They were
popular....


- --

New episode of "Watch This" with Ashley Bottoms.

http://jtem.tumblr.com/post/15871139066

[Martin 'Martinland' Schemitsch]

On Tue, 31 Jan 2012 02:36:57 +0100, John Doe wrote:

> The credits are visibly

> shaking left and right.That's because it was on film?

Not exactly, it's because the element (several generations from the camera
negative) used for the video transfer (assuming you don't type this from
inside a movie theater) was poorly done.

Celluloid film inside cameras for principal photography and effects work
(from simple fades to special visual effects done on film) has been
aligned at normal shooting speed of 24 frames per second with great
mechanical precision for a very long time now.

It's the release prints and even other, more important elements that are
not processed with the same care (time & precision mechanics).

The rule of thumb might as well be: The more generations an element is
removed from the original camera negative and the more speed is being used
while transfering the material the more weave builds up, depending on
the machines involved. It even adds up from one sloppy mechanic to the next
and gets stored this way optically from generation to generation.

In the digital realm it's of course natural that there is no generational
loss, no big deal.

Compression might be able to compress weave very efficiently, depending on
the amount of movement, but it takes more data in any case, sometimes a
lot more, in other cases very minimal.
Even worse: Compression might add motion artefacts to jittery source
material! I've noticed this quite often actually, especially in the
beginning of digital video compression. DVDs got better and better
in the 15 years since they've been around, a testament to the always
evolving compression mathematics and algorithms as well as increased
computing power and cleaner source material being used due to HD
necessities.

In all the above cases the weave won't go away, you have to go back to the
best possible film element and/or apply salvaging restoration techniques
to the surviving elements.

That's my understanding of this subject matter.

Hope this helps,
ML

--
----------------------------------------------------------
"I don't know. I'm making this up as I go!"
(Ford as Dr. Jones Jr. in 'Raiders of the Lost Ark')
----------------------------------------------------------

[ralph]

Thanks, Martin, for the thoughtful response.

[globular]

The fit onto the film sprockets can be jumpy if the film is faulty.
Some prints have been done with films in this condition.

[John Doe]

"Martin 'Martinland' Schemitsch" <team8martinland hotmail.com>
wrote:

Thanks. The shaking appears regularly on Netflix movies. Taking a
peek at Raw Target (1995), looks like it was filmed from a
stagecoach.




--
To be clear... This is not an indictment of Netflix. It's just
weird/notable IMO.

Thanks to the replies.