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-   -   New bulb & Other things. (http://www.avrev.com/forum/video-processors-technology-calibration/811-new-bulb-other-things.html)

TheMoose 09-27-2007 07:35 PM

New bulb & Other things.
 
Just wondering if putting a new bulb in a RPTV will effect the calibration?

What are some of the other things that can mess up a calibration?
New cable or Sat box, new player (DVD, BD, HD-DVD, etc)?

Will changing anything that wasn't there during the calibration screw it up & require calibration again?

EDA 09-28-2007 08:39 AM

Re: New bulb & Other things.
 
Replacing a bulb will definitely warrant new calibration. Difference in brightness and color temperature will occur with the new lamp.

wazzzup 09-28-2007 05:20 PM

Re: New bulb & Other things.
 
I'd also let it "burn in" a little before calibrating as the bringness and contrast can vary quite a bit at the beginning. Think of the peformance of a bulb as a bell-curve. You want to calibrate it when its in the beginning of its life but not TOO early.

JerryDelColliano 10-01-2007 06:15 PM

Re: New bulb & Other things.
 
Quote:

Originally Posted by wazzzup (Post 3733)
I'd also let it "burn in" a little before calibrating as the bringness and contrast can vary quite a bit at the beginning. Think of the peformance of a bulb as a bell-curve. You want to calibrate it when its in the beginning of its life but not TOO early.

------

I have had digital projectors since they first came out and I can say the life span is easily 4 times better today than before.

I would also add that they roll off in contrast isn't NEARLY as bad as it used to be.

I had a Madrigal MPD1 (modified JVC) that William Phelps tweaked out. With a new bulb it measured at 250:1. 100 hours later it was less than 1/2 that. It still kicked the HELL out of my Sony 7 inch CRT and was about 10x smaller. The fan noise was LOUD!!!!

TheMoose 10-02-2007 07:15 AM

Re: New bulb & Other things.
 
well it looks like I'll be waiting to calibrate for a couple of reasons, first off my set is 1 year old so I may as well wait till I have to replace the bulb, but mostly because my dealer hasn't got the HDMI equipment yet.
It seems he spent a ton of cash on DVI equipment & got burned so it'll probably be spring before he has the right gear anyway.

JerryDelColliano 10-02-2007 08:59 AM

Re: New bulb & Other things.
 
I would calibrate on a fresh bulb


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