Originally Posted by wtfer
Wow very cool if true.
Can you clarify a few more things. You mentioned something about a firmware upgrade from Samsung, what did it do exactly. Also how would you compare the black levels & contrast of the A650 compared to any of the recent sets you tested?
A lot of people are saying the previous Samsung 71f LCD had better looking contrast & black levels were just as good, would you agree?
It seems less aggressive in AMP than before upgrading, and corrects few bugs including erasing 'favorite channels'.
Regarding contrast ratio, 71F's dynamic CR's are better in my measurement.
But A650 is better in panel's static CR with turning off any dynamic backlight control.
71F(Korean Model# F81BD)'s Max CR measured 27525:1(even better than Samsung's own 25000:1 spec) and then blacks read 0.012 nits that time.
That's close to Pioneer Kuro's blacks(0.013 cd/m² initially, 0.006 cd/m² after few seconds)
On the other hands, A650's max dynamic CR is limited to around 10K to 1, still better static CR than 71F.
Most new TV's from any major brand, IMO, have enough blacks and CR's unless you're watching it in a darkened room
A650 has around 2000 to 1 non-dynamic, static CR.(2291 : 1 for my measurement)
And that's pretty good enough and better than 71F, I think.
I assume Samsung changed their dynamic backlight control algorithm less aggressively this time and that's why 71F has more CR.
But A650's panels static CR's higher than 71F.
I'm not satisfied with A650's black uniformity, though.
Usually Samsung and Sony's PVA panels are better in black levels and uniformities comparing to LG's IPS panels.
A650 is still slightly better than LG's, but not as good as previous Samsung models.
Originally Posted by capa2000
Why are some setting not available to change? Is it because I am using HDMI? Can't select some settings like Warm2 and some settings are grayed out all together. Why is this?
If you want to choose Warm1&2, picture mode should be 'Movie', not 'Standard' or 'Vivid'.