D5 XL Enlarger lamp output

[Bruce Osgood]

Does anybody know what the difference is between Low Lamp and High Lamp output? It appears to me it is greater than double, perhaps 2-1/2 times the amount of light.

Thanks,

 

[ic-racer]

From the manual:

The LOW position reduces light output by about two f /stops ...

 

[Bruce Osgood]

From the manual:

Thank you, that's about what I expected. Close enough