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i1 pro - is calibration base needed?

post #1 of 13
Thread Starter 
can someone tell me whether or not the included calibration base (the one with the matching serial number) is needed when using an i1 pro for tv/projector calibration with hcfr?
post #2 of 13
Quote:
Originally Posted by absolootbs View Post

can someone tell me whether or not the included calibration base (the one with the matching serial number) is needed when using an i1 pro for tv/projector calibration with hcfr?

You need the calibration plate to initialize your i1pro before each calibration session and for taking dark reading measurements every 10 min required for optimum accuracy.
post #3 of 13
Thread Starter 
Quote:
Originally Posted by ConnecTEDDD View Post

You need the calibration plate to initialize your i1pro before each calibration session and for taking dark reading measurements every 10 min required for optimum accuracy.

so the numbers matching base for the i1 pro essentially serves the same purpose that "any old dark surface" does for the display 2/lt then?
post #4 of 13
HCFR does not activate the internal lamp of the i1 Pro so the chip in the base serves no purpose. Using a black surface for initialization is sufficient.

Larry
post #5 of 13
I suspect you need the base if you ever run the i1 diagnostics, but you shouldn't need it otherwise. Anything that blocks out all light will work when taking a dark reading.
post #6 of 13
So, what's the fastest method for taking a dark reading with the i1Pro? I can imagine it's faster if the meter isn't on the surface of the display.

Anyone out there come up with a push button method or something very very quick and very very easy?
post #7 of 13
Quote:
Originally Posted by ZandarKoad View Post

So, what's the fastest method for taking a dark reading with the i1Pro? I can imagine it's faster if the meter isn't on the surface of the display.

Anyone out there come up with a push button method or something very very quick and very very easy?

Yes indeed - right here. I have one. X-Rite #A-H/EOB
post #8 of 13
Quote:
Originally Posted by buzzard767 View Post

Yes indeed - right here. I have one. X-Rite #A-H/EOB

Does it have a shutter or something?
post #9 of 13
Quote:
Originally Posted by ZandarKoad View Post

Does it have a shutter or something?

This is also the question of mine
post #10 of 13
Quote:
Originally Posted by ZandarKoad View Post

Does it have a shutter or something?

Yes. You can see it here. Select "Features" and click on the picture to enlarge it and see the shutter tab.
post #11 of 13
Quote:
Originally Posted by buzzard767 View Post

Yes. You can see it here. Select "Features" and click on the picture to enlarge it and see the shutter tab.

OK, now I see it. It looks like a manual slider shutter. For $150 it should actuate itself by reading my mind...

It also looks like the shutter has a big hole in it! LOL I'm sure it's immaterial.
post #12 of 13
The i1Pro only needs the serial numbered base plate for dark calibration when doing a reflectance (internal lamp) measurement or running diagnostics.

It does not have a shutter, wished it did. So you will need to run a dark cal every 10 minutes or so to account for internal sensor drift. Does this mean you get bad readings after 10 minutes no. But they do start to drift especially on the lower end.
post #13 of 13
Some of you might find this little "study" interesting.

http://www.avsforum.com/avs-vb/showt...ighlight=i1pro
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