Tema: Re: dvi VT30 apzvalgos
Autorius: Struktur
Data: 2011-05-02 12:56:53
O kam tas "puolimas". Bile tau gerai ;)

On 2011.05.01 22:05, Icetom wrote:
> Laukiu YZF ir Struktur "puolimo" apie faktus:
>
> "There has always been a large dependence by some forum members and
> enthusiasts on cd/m2 black level figures within reviews and trying to
> compare these on forums, where the measuring equipment, method and
> surroundings have always made these types of measurements useless in any
> kind of comparable manner. The results really are based on certain
> factors that for us are never as repeatable or properly measurable to
> make them a useful tool for readers to use. You cannot take measurements
> we make here with a K-10 meter and then compare them to readings taken
> by say a Spyder III in a different country. There are just too many
> factors that make that approach bad practice in terms of imaging science
> and that’s before we take into account that doing these measurements on,
> say, an LCD that switches it’s backlight off at 0IRE, makes the
> measurements pointless. Mind you that hasn’t stopped a few from
> complaining about the lack of such measurements in our reviews and while
> we will start to mention our results, they will not be used for marking
> purposes or any other evaluation process. We do not recommend trying to
> compare black level readings with any other source, be that another
> review elsewhere or measures taken by forum members. The only real
> comparable difference you could take as being minimally accurate is by
> the same reviewer using the same equipment, method and conditions.
>
> So, with that important disclaimer out of the way, the VT30 measured
> with our Klein K-10 in dark surroundings and calibrated mode we got 0.02
> cd/m2 at 0IRE and 79.35 cd/m2 at 100IRE (approx. 3,967:1 on/off) using
> standard window patterns from our Sencore VP401. Our 8 month old VT20
> measured 0.04 cd/m2 at 0IRE and 75.12 cd/m2 at 100IRE calibrated (1878:1
> approx on/off). Our 2 year old Pioneer LX5090 Kuro measured 0.03 cd/m2
> at 0IRE and 110.1 cd/m2 at 100IRE calibrated (3,670:1 approx).
> Ansi-contrast measurements on the Pioneer were 0.04 cd/m2 black and 85.4
> cd/m2 white averaged results, with the VT30 managing 0.03 cd/m2 black
> and 72.4 cd/m2 white averaged results."
>
> Šaltinis:
> http://www.avforums.com/review/Panasonic-VT30-TX-P50VT30-42VT30-50VT30-55VT30-65VT30-3D-Plasma-Review.html
>