[SML] Masking Projector Black

[Jerry Durand]

What?  Somebody flash the Jerry sign?

DMX shutters aren't be hard, but that cuts off the entire image.  If
you're trying to trim the video black border, then that requires a
gobo.  Haven't seen a lot of projectors with gobo slots, but it wouldn't
be a bad idea for a pro unit to have one.

On 02/07/2015 09:19 AM, Jason Salvatori via Stagecraft wrote:
>  I've always had issues trying this in the past.  The problem is that
> in front of the lens you are already past the focal plane, so you
> can't get a hard cut.  It is akin to using barn doors on a fresnel as
> opposed to a shutter on an ERS.   Having your blocking material a bit
> further in front of the lens does help a bit. I've also found that
> doing this will lower your output intensity of the rest of the image.
> What we need is someone to invent a projector with internal shutters
> that are DMX controlled... Jerry?
>
> Jason
>
>
>>       I'm curious what can go wrong when trying to mask portions of a
>> projector field with black wrap. I am planning to dowse the projector, but
>> do to its intended use, and necessitated position, large portions of the
>> field will never get used.
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-- 
Jerry Durand, Durand Interstellar, Inc.  www.interstellar.com
tel: +1 408 356-3886, USA toll free: 1 866 356-3886
Skype:  jerrydurand 

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