Upgraded from VW760ES.
I have full light controlled room, and 120” gain 1 reference white screen with masking.
Panasonic UB900 player. Comparison is made with the reference picture mode.
VW 870ES first impressions:
The optics and DFO makes a big difference even my wife and kids noticed that picture is sharper and there is more definition.
Lens shift motor is changed and its operation is quieter.
The black level is little bit lower. It’s easy to see and test with very dark or almost black scene.
In settings menu: dynamic control
• off - no iris and no laser dimming,
• limited - laser dimming is turned on and the black level is “probably” the same as with vw760.
• full - laser dimming is on and iris is working. Iris movement is visible but it’s moves very little. Iris closes around 30%. They definitely should make it more aggressive.
I hoped that the lack level would be better, but there is change so now with normal viewing it doesn’t bother me anymore like it bothered with the VW760.
Black details visibility with HDR is not improved. it’s still cannot resolve lower than 0.100 in test table that comes with Sony UHD 4K disks. With UHD disk I need to rise brightness to 56.
Fan noise it’s different with vw760es full laser it had constant fan speed. Now with vw870 the speed will vary and change probably by projectors temperature. But this fan speed change and noise variation is more noticeable compared to constant noise. (in quiet room with no audio playing)
It’s brighter but not much I cannot measure it right now. 760es already had enough brightness for me around 73 FL on screen.
Now I need more time to test it and watch movies then I will get better picture how small or big are the improvements.
Are you sure about 70+ FL? 120” screen is around 60 sq ft right? 120” diagonal is probably closer to 50 sq ft but calibrated lumens should be around 1600-1800 I would think. These are just ballpark numbers but wouldn’t your FL be closer to 30-35 FL maxed out on this projector?