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Author
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Topic: 48fps 3D and triple flash
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Frank Angel
Film God
Posts: 5305
From: Brooklyn NY USA
Registered: Dec 1999
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posted 01-15-2012 11:24 AM
Light loss? Yah -- that should improve the state of 3D. What are we going to readjust THAT spec down to...2ftL? Trying to make 48fps and 60fps work before laser light sources becomes wide-spread is folly. But then, don't go by me....I am convinced that doing 3D without dual projectors is folly to begin with, given the embarrassing light loss it asks audiences to accept.
And I have given up on all the geniuses who write these so-called specs. They start off saying, "OK everyone, you need 16FtL on a screen to make it look decent (we know if you can get more, it looks better, but OK, 16ftL is the goal). That's been the accepted spec for decades. Then comes along digital 3D and everyone is having multiple orgasms over it, but gee....they can't get 16, or 12 or 10ftL out of even the best digital systems; if they are lucky they can get 5. But they want digital 3D sooo badly that technicians, scientists actually say, "OK boys, here's how we fix it -- NEW SPEC. Get 3-5ftL and we'll say you're good." And I say, go screw yourselves. It's bullshit.
What is puzzling to me is that techs who usually are obsessive about getting everything exactly to spec, be it frequency response and sound pressure in sound, or any other spec, seem to be perfectly OK with this downgrade. It would be as if you went into a theatre to do a B chain calibration and the system couldn't get to 85db; would you recalibrate your RTA so it READ 85db with whatever the system could muster? I don't think so; or would you go back and tell the owner to get more amps and double your subbass speaker compliment? What we are doing with the screen illumination spec is going back to the owner and telling him that 72db is the new sound spec! THAT is what I feel has been done with the 3D screen illumination spec. You measure light off the 3D screen thru the polaroid glasses and it's nowhere near 16ftL or even the Drive in 12ftL spec, so what do we do? Do we tell the owner 1) get a bigger light source or use TWO projectors OR do we tell him 2) you can't get 16ftL but not to worry...the new spec is 5. The industry is doing the latter.
3 to 5ft looks like crap and everyone knows it. It's the cinema industry's version of the emperor walking around with no cloths. But hey, no one is about to say we can't do 3D yet because it can't meet any reasonable spec....we'll just change the spec. Someone tell me how it's not CHEATING. Someone tell me how talking about 48 and 60 frame rate is not folly without also talking about how to get more light on the screen.
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