Odd results, filter doesn't work
I do not recommend this item. (Although I do recommend the seller)
I foolishly bought it to try and "improve" what was already a very fine picture on my Panasonic Plasma that I obtained myself using the Cinema mode as a template. There were however a few moments on certain blu-ray discs on my settings where the colour looked incorrect (eg murky skin-tones, inappropriate olive tints at times) and I felt a calibration would remedy this. It did not.
To begin with, you need to spend a significant amount of time figuring out what exactly to do and the results are strange to say the least (Sharpness = 79??). Worst of all, the blue filter specs that come with the disc do not work at all. What you should see are no bars on the left-hand side of the colour test (i.e. all black) yet no matter what you do, black bars are always prevalent. This means that the colour and tint will always be wrong. Spears & Munsil claim that it is your display that doesn't work with their product but a Panasonic Plasma is a mainstream product; it strikes me as odd that it would not work with it.
If you must go down the calibration route, I recommend getting a professional to do it. Most of us though should be able to get an outstanding picture without one. With this product, the end results seem incorrect and that's before considering the fiasco of a filter that doesn't work with mainstream displays.
Save your money and get a Criterion blu instead
Verified purchase: YesCondition: New