Re: [Avid-L2] Re: HDCAM tape lifespan...

The Ruby Slicer is adjacent to and just behind the Flux Capacitor.


----
*john heiser | senior video editor*
*o2**ideas*
birmingham, alabama, USA
http://vimeo.com/johnheiser


On Fri, Apr 26, 2013 at 7:04 AM, john@digitalcut.com <john@digitalcut.com>wrote:

> **
>
>
> Where do the "slivers" go?
>
>
> On Apr 26, 2013, at 2:06 AM, "johnrobmoore" <bigfish@pacbell.net> wrote:
>
> > That's very interesting. I had just figured the contact of the spinning
> heads was burnishing down the tape smoother. What element on the tape
> changes so the tape deck recognizes a non virgin tape? I'm amazed I'd never
> heard about this specific feature.
> >
> > --- In Avid-L2@yahoogroups.com, Mark Spano <cutandcover@...> wrote:
> > >
> > > I think that is true of Sony decks but only after pass 1. When you
> load a
> > > fresh tape into a Sony Digi or HDCAM deck, there is a ruby cutter that
> > > slices off the tiniest slivers of tape prior to head wrap. Sort of a
> tape
> > > guide and path insurance. Once that has been done, the machine
> recognizes
> > > previously sliced tape and doesn't drop the cutter in.
> > >
> > > DVW and SRW machines are the Rolls Royce of our profession…
> > >
> > >
> > > On Thu, Apr 25, 2013 at 2:57 PM, johnrobmoore <bigfish@...> wrote:
> > >
> > > > **
> > > >
> > > >
> > > > I'd heard over the years sense we got away from analogue recording
> formats
> > > > and went to recording digital data on the tapes, around the D2 days
> and
> > > > certainly with digibeta, the tapes actually got better performance
> after
> > > > use. The theory was the heads passing over the tape actually
> smoothed out
> > > > the surface of the tape which made for better performance. I would
> imagine
> > > > this would not be something that you'd ever really see on screen but
> has
> > > > more to do with the magnetic coercivity of a smoother less bouncy
> surface
> > > > on the heads. I can't say this is a fact but it makes sense to me. Of
> > > > course damaged tape from a bad transport is another story.
> > > >
> > > > --- In Avid-L2@yahoogroups.com, Tim Selander <selander@> wrote:
> > > > >
> > > > > Yep, that's the info I'm hoping for, how many times can a tape
> > > > > reasonably be recorded -- though the shelf life info is good to
> > > > > have too!
> > > > >
> > > > > I found a pdf put out by Sony that said HDCAM SR tape is good for
> > > > > an impressive 50 uses with no loss of quality. SR is a completely
> > > > > different formula than 'just' HDCAM... but I wonder if durability
> > > > > is similar.
> > > > >
> > > > > Tim Selander
> > > > > Tokyo, Japan
> > > > >
> > > > > On 4/26/13 1:12 AM, Terence Curren wrote:
> > > > > > I think he is more concerned with number of times over the heads
> as
> > > > opposed to age of tape.
> > > > > >
> > > > > > --- In Avid-L2@yahoogroups.com, "Tom McDonnell" <ltr54@> wrote:
> > > > > >>
> > > > > >> Not sure how if this is any indicator but I have SONY brand
> BETA SP
> > > > and Beta
> > > > > >> Oxide tapes over 30 years old and 15 year old SX tapes that
> play back
> > > > like
> > > > > >> the day I recorded them.
> > > > > >>
> > > > > >> Tom McDonnell
> > > > > >> Cinematographer/Operator
> > > > > >> Weisscam Hi-Speed Tech
> > > > > >> Los Angeles, CA
> > > > > >> New Orleans, LA
> > > > > >> 818-675-1501
> > > > > >>
> > > > > >
> > > > >
> > > >
> > > >
> > > >
> > >
> > >
> > > [Non-text portions of this message have been removed]
> > >
> >
> >
>
> [Non-text portions of this message have been removed]
>
>
>


[Non-text portions of this message have been removed]



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