Originally Posted by Manni01
Thanks for this suggestion LDVD, I'll give it a try.
I and am sure others would love a refresher about how use these, especially given the fact that in my case, it would be a fresher, not a re-fresher
I have DVE basics and the filters, as well as the AVS 1.2 patterns, so please give instructions with whichever you think are better.
Thanks for this kind offer!
First - run, do not walk, to your color filters. I am excited about this for you. It will tell you definitively which (if any?) of your Y values are incorrect.
Its been a while since I used these and I've never really had a completely solid grasp on it, but I'll try to explain it at a very high level here. Then hopefully someone else can chime in...
Basically take your RGB filters from DVE but use the AVS HD 709 1.2 patterns. The patterns you want are the ones that look like vertical color bars with blinking color blocks in various places within and above the bars.
This is all from memory and may be rough but the general idea is this - start with the blue filter and hold it up to one eye while closing the other one. Look at the blue bar on the screen from your normal seating distance.
If the Y value is correct, then the blinking (white?) blocks should be virtually invisible and the bar should look solid blue while viewing through the filter. To give you an idea of what a WRONG Y setting looks like, take the Brightness for Blue and crank it up or down a lot on purpose just to watch what happens with the filter. The correct/ideal setting is the one where the white blends the most into the blue.
Then you can repeat this for red and green, switching filters accordingly (use red filter to view red bar, green filter to view green bar). I think the secondaries can be done too but would have to play with the pattern to recall how.
My understanding is that this technique is considered to be quite accurate and my recommendation, especially in your case where this is confusion over which if any meter to try, is to dial in Y based on the filter and forget about the meter for now.
Bottom line is that regardless of what your meter tells you, the setting can only be right if it looks right through the filters. I think this will be a VERY interesting experiment for you, as it will give you an idea of which of your meters is most accurate in this regard, as well as tell you where the correct setting is!
Keep us posted on what you find - I am very curious to hear the results.
Hopefully someone with more experience using these filters will chime in and provide more details on the technique as well, but this should get you started.