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Source 4 Gobo Magnification Calculator

ThrowDistance (feet)

Gobo ImageSize (inch)

30 2Gobo Size Warning: A & B sizes - No S4 jr

Projected ImageSize (feet & inches)

FocalLength (inch)

Source Four 50º 18' 2'' 3.30Source Four 36º 13' 6'' 4.80Source Four 26º 9' 10'' 6.80Source Four 19º 6' 5'' 9.30Source Four 10º 3' 4'' 17.80Source Four 5º 2' 4'' 25.50

Source Four jr 50º 26' 9'' 2.33Source Four jr 36º 18' 4'' 3.27Source Four jr 26º 13' 11'' 4.66

Maximum image sizeSource Four Source Four jr"A" size max = 2.95 "M" size max = 1.94""B" size max = 2.53"