RESOLUTION:
on 16x9 material (my priority), the native resolutions (without ISCOs, etc) are:
Sony 400: 1068 x 480
LT 150: 1024 x 576
DEMO:
Specifications are nice to have, but in the end you have to try it yourself:
i was running both projectors at the same time, and placed a mask in front of each PJ's lens to block of 50% of each one's image, so i saw the LEFT 50% of the image on the Sony, and the RIGHT 50% of the image on the LT-150.
image was displayed on a DaLite HiPower 16x9 screen.
i watched a variety of material this way, and prefered the "look" of the Sony. i had no vested interest - remember, i was going to get rid of the Sony & both machines were paid up & belonged to me! the LT150 also offered a great new warranty (i have only a few months left on the Sony (3yr))
even so, i could have lived w/ the LT-150, if it weren't for the dreaded RAINBOWS. i would rather have low contrast (i can get used to it) than rainbows that jump out at random & detract from my involvement.
so for me, with my eyes & my preferences & my environment, it was an easy choice. everything else is academic & your experience may differ.