Revisions A and B of the smartMACâ„¢ user manual state that the smartMAC uses the same gobo size as the MAC 250 series, i.e. outside diameter 22.5 mm (0.9 in.) and maximum image diameter 17 mm (0.7 in.). This is not correct.

The smartMAC gobos have the following specifications:

    Outside diameter: 27.9 mm (1.1 in.) +0/- 0.3 mm (0.01 in.)
    Maximum image diameter: 23 mm (0.9 in.)
    Maximum thickness: 1.8 mm (0.1 in.)
    Recommended glass: High-temperature Borofloat or better with dichroic or enhanced aluminum coating
    Recommended metal: Aluminum (steel for temporary use only)