Gucker
A test using Multigrade IV paper and the Duka 50 to determine the time taken for the paper to become fogged revealed the following:
Duka 50 with white diffuser: < 1 min;
Duka 50 with red diffuser: > 4 min, < 8 min.
The test was carried out at a distance of approximately 40 cm from the luminaire, with the ‘luminaire cover’ fully open.
EJG
Hello there,
useful practical information – I have the Duka 50 with a red lens myself.
Many thanks
Kind regards, ejg
