Will loosing power to HVX during a take result in lost footage?

Panasonic Cameras

Will loosing power to HVX during a take result in lost footage?

Posted by John Chater on March 14, 2006 at 1:58 am

Can anyone tell me if pulling power from the HVX while it is rolling will corrupt all the data on that take?
I have a client who had the AC power pulled from from the camera power supply towards the end of a 24 hour non repeatable timelapse. All the footage appears lost and the thumbnail shows a white frame with a ‘X’ in it.
I had no idea that would happen when the HVX lost power during a take.
Im not in the mood to test this on the camera again.

Thanks
John

John Chater replied 20 years, 1 month ago 4 Members · 6 Replies
6 Replies

Bob Gundu
March 14, 2006 at 4:36 am

Have you tried the repair clip function?
John Chater
March 14, 2006 at 6:13 am

Yes tried that. It had a red X which the manual says cannot be repaired. Also there was no indication of an elapsed time on the timecode below the thumbnail.
Id like to find out what Panasonic has to say about the camera loosing data if power is lost during recording.
Best
John Chater
Barry Green
March 14, 2006 at 8:37 am

The red X means the clip needs to be repaired. I haven’t found a clip yet that can’t be repaired, and I think I read somewhere that the most you’ll lose is two frames.

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Jan Crittenden livingston
March 14, 2006 at 11:37 am

Hi John,

I confirmed with Engineering.
The broken clip should be repaired by REPAIR operation of HVX200.

In VTR mode.
Display Thumbnail
Select the broken clip
Go MENU > OPERATION > REPAIR CLIP

In normal real time recording mode, the last 2 sec.
may be lost because the file saving is done every 2 sec.
In case of interval recording mode, the lost time at the end of recording will increase depending on the interval ratio.

I hope this solves the problem.

Best,

Jan

Jan Crittenden Livingston
Product Manager, DVCPRO, DVCPRO50, AG-DVX100
Panasonic Broadcast & TV Systems
Barry Green
March 14, 2006 at 9:23 pm

Thanks for the clarification, Jan. Two SECONDS, not two FRAMES — got it.

—————–
Get the most from your DVX camera. The DVX Book and DVX DVD are now available on ebay and at Amazon (https://www.fiftv.com/db)
John Chater
March 16, 2006 at 1:56 am

>In case of interval recording mode, the lost time at the end of recording will increase depending on >the interval ratio.

Hello Jan

Thanks for getting back to me with this info.
Im relieved to hear that with regular framerates you will only loose two seconds.
This timelapse was exposing 1 frame every 10mins. Do you have any idea how much footage should have been lost at this interval setting?
Also will a corrupted clip sequence show an elapsed footage time below it? This one showed no elapsed run time. Im wondering if the camera had not recorded enough footage for it to have saved anything repairable.
Finally, is it correct ( as Barry says ) that any clip with a red defective ‘X’ indicator is repairable? The manual indicates otherwise.

Best
John

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