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DMX control "resolution"


Keeper of the Keys

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A little OT but since people are talking about the necessity of 16b CMY I have to ask does anybody actually want/need 16b for intensity?

 

Well, while we're on one of my pet subjects....

 

I would suggest the most critical area for dimmer assesment is TV. Happens to be where I've been for the last 20 years.

 

In general, I've never needed anything more than 8 bit resolution, and I don't think anybody else should.

 

HOWEVER - just to be constructive for a mo, what I do sometimes think would be useful, is a look at the "transfer characteristic", ie the relationship between DMX value and "open-ness" of the dimmer claw or whatever.

 

The reasoning behind saying this is that in TV (not speaking for other colleagues) often too much happens too quickly at the bottom end, whereas at the open end one has loads of "latitude" so to speak.

 

I guess much of this depends how gorgeous the ( full field ) dimmer mechanism works, and they vary from single claws, double claws, and graduated discs with varying degress of light stopping "stuff" on them. I'm sure there are other methods too, before anybody jumps up and down!

 

I have often thought about changing the "dimmer curve" at the desk for certain fixtures that bug me in this way, however, that opens a whole drum of worms!

 

D

 

A concurrent post has been automatically merged from this point on.

 

All 'professional' quality moving lights have 16-bit pan & tilt now - it's only disco kit that doesn't.

 

Just and FYI, the Mac 2000 Performance II and Profile II both have 8-bit pan and tilt in 8-bit mode. Scary!!! :(

 

... though not at all scary if motor speed is offered in 8 bit mode.

 

 

D

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