This IS the Avid L2: Re: [Avid-L2] Re: HDCAM tape lifespan...

Is it mounted on an unobtanium bracket?

Sent by magic over t'interweb

On 26 Apr 2013, at 13:47, John Heiser <jpheiser@gmail.com> wrote:

> 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]
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