Pixals are dead

[John Sharaf]

Greg,

When you say “dead” i think you mean “lit”. If they’re white they’re lit pixels and can be corrected by repeated ABB or my a special procedure where you “turn them off”, effectively making them black and unnoticable (except in certain cases like green screen).

To perform the pixel correction you need a very high resoltion monitor, so it’s often best to let factory service do it. They have a minimum charge of $270 (I think?) plus transport back and forth.

You could try it yourself, but if you turn off the wrong pixels you can’t turn them back on!

JS

[Mariusz Cichon]

It is possible to delete pixel compensation but I would definitely agree that large HD monitor and expertise is needed when performing task. I would first do black balance few times to see if this will help. If black balance trick doesn’t do it, take camera to rental house, service center and qualified technician can do it for you.
Camera needs to be “warmed up” for about 2 hrs and whole procedure shouldn’t take more than an hour.
I hope this helps.

Mariusz

[John Chater]

Hi John
Mariusz is correct on this. There isnt really a danger of doing permanent damage. You can delete any inaccurate corrections you make and start again. The process is more of a pixel blend than a turning off of the pixels. Its a fairly easy thing to do once you have been shown the process by an expert.
Its surprising how many pixels get corrected on the cameras prior to sale.

Best
John

[Dave Anderson – roscor]

Greg:

Pixel problems can usually be masked by performing auto black balance. Continue executing ABB to clear the problem. Sometimes this might take just a few ABB, or it might take 6 or 15 or more. This ABB sequence is usually done in groups of 3, because we don

[Thomas Miller]

I know this is an old thread, but I wanted to chime in here. We actually have an HDX900, but there is no longer a qualified engineer in our market. When our pixels light up, and we can’t eliminate by black balancing, I finally took it upon myself to learn how to dig into the menu system and do it. I spoke with our out of town service rep at Abel, and she was able to talk me through it. I think it’s important to know this, and in fact I will teach our team, as well as keep the instructions in our camera bag. Please let me know if anyone is interested, and I will be happy to share what I learned. Not sure if the HDX900 is the same as the Varicam though.

Tom Miller
Big Pictures Media
Denver, Colorado

http://www.BigPicturesMedia.com