Light canon time. That's a phrase few home theater projetors get accused of being. And most of those - entry level "cross-over" projectors. Nonetheless, the LS10d, powered with a 260 watt lamp, is just that - a relative light canon, compared to the average $2000, $5000 or even $10,000 projector. For example, it measured (comparing "best" modes), almost 3 times as bright as the 1300 lumen claiming JVC RS60 that was here last month. (But the Runco, per spec, is only supposed to be about 60% brighter, not 300%.)
The LS10 measured almost identically in "best" mode, as the RS7 did last year. This time our "best" mode lumen count, with the lens at mid-point on the zoom, and post calibration, worked out to 1465 lumens (besting the LS7's 1451 - of course that slight an error is well within measuring accuracy, never mind lamp variation).
After Mike's calibration, that 1465 lumens represents 25 total lumens more than their claim of 1440 lumens at D65. Tis rare we see projectors that beat claims - ok, if not rare, uncommon. The 1465 also means we only lost 14 lumens in the process of calibrating!