Since we\'re now comfortably off topic, allow me to insert some data points. Today I metered the output of an Einstein and an Elinchrom 600RX, each with their manufacturer\'s nominally 7\" and 8\" reflectors (7\" & 8-1/4\" for the Eli, 7\" & 8-1/2\" for the Einstein). Meter (Minolta Flash Meter IV) was set to ISO 100 and placed on a light stand exactly 10-feet from each light\'s flashtube for the on-axis reading. The meter was moved 6-feet laterally for the off-axis readings.
Results shown in green represent the higher output while yellow denotes a tie. In no case did the 640WS Einstein meter higher than the 600WS Elinchrom. In only one case did it match the Elinchrom\'s output. In all other cases, output of the Einstein metered fractionally lower than the Elinchrom.
