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DVL-Digest 1221 - Postings:
Index


'Blown' pixels on Sony TRV-8?
Audio monitors/power: for the audio guys - (2)
Badly Dropped-out Hi-8 tapes
Panasonic DVX100 for film res.
UPS (Uninterrupted Power Supply), is it worth for invest ?


'Blown' pixels on Sony TRV-8? - Adam Wilt


> Recently however, there have been two areas of the image that each
> contain a rather large bright blue-white "pinhole". They remain static
> when the auto stabilize feature is turned [off], and "swim" a bit when the
> feature is active, and they are visible on recorded footage, all of
> which tells me that the problem would seem be with the CCD. They also
> intesify in lower light situations, and are invisible when light is more
> plentiful.
Sounds like dead pixels. They die as they age (it's more a question of
"when", not "if").
> One further bit of information: I've noticed that in the long shutter
> mode ("Candle" mode), this camera has always had an starry overlay of
> brighter pixels of different colors, which I have always found annoying
> but have attributed to the design limitations of such a small CCD and
> hence have lived with them. These two, much brighter, are quite evident
> in this mode, too.
All CCD's have "fixed pattern noise" because the no-signal level of each
pixel is slightly different. In modern cameras it's at a very low level,
but long exposures will emphasize it. That's why many digital still
cameras have an "auto noise reduction" feature for slow exposures: after
shooting an image, they then capture an image of equal duration with the
shutter closed, and subtract the resulting "noise map" from the picture.
High gain settings also bring out fixed pattern noise and dead pixels. It'
s a good thing to know when looking at a used camera. Of course, my TR-101
looked clean for many years, then developed three dead pixels all at once.
Your mileage may vary.
Sony's flat rate charge for fixing the camera is probably in the -
range, FWIW.
Cheers,
AJW
[Any bizarre line breaks courtesy of OS X's Mail.app. Think Different!]



Audio monitors/power: for the audio guys - "Valerie Shoaps"


Hi,
Today was not 'fun'. I had a molar pulled and a deep cavity taken care of. I came home to work and fried my monitors and poweramp (thanks to my old Crown... long story). My Mackie 1202 is OK at least. I just saw the $$$ fly out the window.
So I'm off to replace and hit at a bad time financially. Budget is about (tough, I know). Genelec's or Mackie 824's are just way out of my budget. Near field probably describes my usage; I plan to eventually mount these on (not in) the walls. Quiet is a good thing; no noisy fans! I have not kept up on this stuff so any feedback and opinions are what I'm after. These are what I'm considering and I have to buy now:
Powered monitors:



Audio monitors/power: for the audio guys - "Valerie Shoaps"


>The 20/20 ARE powered.
>
>One has both amplifiers (left and right) and the the other one is slave of
>the first
>one.
Those are the 20/20 bas that you have. I'm looking at the non powered 20/20's with a Samson Servo 260 power amp. That's my current choice, but I'm worried about power usage. I had to have an electrician friend install a higher capacity fuse "thing". I have two stations here with three rgb monitors, an NTSC monitor, a 13" tv, Mackie board as well as regular office stuff. I'm adding another dedicated rendering/compression station, and the 490w of the Samson might just push this place over the limit. I have an email to Event inquiring to the power consumption for the PS 6's as an alternative.
Valerie



Badly Dropped-out Hi-8 tapes - Adam Wilt


> Alas and alack for they've dropped out forever . . . . . .
> -or have they ?
>
> Some of it is unusable due to terrible drop-outs all over the place.
> My player already had a TBC built in, so that's not a problem, you can see
> it kick in just after play starts, but it doesn't do anything to the
> drop-outs running right across the screen.
> Is there any magic cleaner-upper machine ?
After playing through the tapes once, try repacking them with a
FFWD/REWIND cycle or two. Then, *clean the heads*. You *may* get better
playback performance.
The pro decks like the EVO-9850 can be tweaked for dropout sensitivity,
from "none" to "freeze the whole picture, all the time." You may find that
judicious adjustment of the DOC sensitivity pot improves things a lot.
Unfortunately it's in the middle of one of the circuit cards and hard to
work with while the card is installed; I have an L-shaped, insulated
bicycle spoke with a flattened tip I use as a right-angle DOC-tweaker, but
admittedly this approach isn't for everyone.
If you want, I can look up the pot number and the board it's been on (it's
been a while).
Cheers,
AJW
[Any bizarre line breaks courtesy of OS X's Mail.app. Think Different!]



Panasonic DVX100 for film res. - "Crittenden, Jan"


Phen asked:
> Could the output of the Panasonic DVX100 be converted to film
> resolution?
Yes it could be converted to film. It should have about 30% more resolution
than that of a standard NTSC interlace camera's output being transferred to
film.
>If so, how would it look? Also, does anyone know what the image
> quality is like with this camera? How close is it to the "film-look?
>
The camera has not delivered as yet so hard to say, but I think it will look
pretty good.
Best info I have at the moment.
FWFW
Jan
>



UPS (Uninterrupted Power Supply), is it worth for invest ? - "Don Mitchell"


From: bounce-dv-l-6232@dvcentral.org
[mailto:bounce-dv-l-6232@dvcentral.org]On Behalf Of Setiawan
Sent: Tuesday, July 23, 2002 7:46 AM
To: DV-L
Subject: [dv-l] UPS (Uninterrupted Power Supply), is it worth for
invest
?
Hello there,
Sometimes the power is frequently not stable (down for a second) and
that
thing has disturb my video work, especially, when recording from VCR
(whatever it is, DV or VHS) to computer. The quality of infected
footage
will drop for a second when the power down.
Now, I'm thinking about using UPS for my computer, but, is it worth
for
video works ? Can it help to make the power stable ?
If my works are like standard offices (for MS Office works (Word,
Excel,
etc)), I think it can help a lot. But, now, for video works, still a
question mark for me...
If it is worth for invest, can anyone suggest which one is good /
suitable
for video works ?
Thank you!
Set
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(diese posts stammen von der DV-L Mailingliste - THX to Adam Wilt and Perry Mitchell :-)


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