Cosmic speck

[Mike Brennan]

After testing four f900s and sending a tape to Japan, Sony have indicated that the random frequency and position of a flash of a few pixels in a frame is due to cosmic radiation.

 

Why haven't I noticed this before?

Has anyone else seen the effect?

 

Comments?

 

To test your HD camera do the following

Setup viewfinder as normal.

Camera at odb.

Cap lens.

Frame rate irrelevant.

Start recording

Monitor the picture through the viewfinder, not on a monitor

Within 5 minutes you may see a flash as a small group of pixels go live for one frame.

 

Replay to confirm.

 

 

 

Mike Brennan

[Mike Brennan]

Looks like this effect also happens on HDW750 and SD cameras too.

 

Is this a particually bad time for Cosmic rays?

 

 

I wonder if it occurs on CMOS sensors?

 

 

Mike Brennan

[Elhanan Matos]

I read about a solar flare occuring recently, that might be your problem.

 

Giant sunspot 720 erupted again on Jan. 20th unleashing a powerful X7-class solar flare. The blast hurled a coronal mass ejection (CME) into space and sparked the strongest radiation storm since October 1989.

 

That was taken from spaceweather.com

 

Heres a picture of the culprit.

 

Didn't you know you needed a degree in Astronomy to work with HD cameras?

[Mike Brennan]

I read about a solar flare occuring recently, that might be your problem.

That was taken from spaceweather.com

 

Heres a picture of the culprit.

 

Didn't you know you needed a degree in Astronomy to work with HD cameras?

<{POST_SNAPBACK}>

 

Elthan it is not only my problem, but your problem too (albeit very minor)

 

 

check your Vipers Varicams and f900s!

 

 

Mike Brennan