Gobos; Custom Gobos; Image Size - Martin MiniMAC Maestro User Manual

G
OBOS
The MiniMAC Maestro holds up to four size-E gobos. For correct projection, install
gobos with the true side of the image facing the lamp.
C U S T O M G O B O S
The MiniMAC Maestro accepts glass, steel, and aluminum gobos with the
following dimensions (size-E). For best performance, the image should be true on
the coated side of glass gobos.
Outside gobo diameter: . . . . . . . . . . . . . . . . . . . . . . 37.5 +0/-0.3 mm (1 15/32 +0/-0.01 in.)
Maximum image diameter. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30 mm (1 3/16 in.)
Maximum gobo thickness . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 mm (1/8 in.)
I M A G E S I Z E
The focal length of the MiniMAC Maestro is 90 mm (3.54 in). To calculate the size
of a projected image using a gobo of a given size, the formula is
projected image size
To calculate the gobo image size required to achieve a projected image size, the
formula is
=
gobo image size
=
×
gobo image size projected distance
----------------------------------------------------------------------------------------
focal length
×
projected size focal length
------------------------------------------------------------------- -
projected distance

Gobos

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