Posted 08 March 2010 - 12:47 PM
Posted 08 March 2010 - 01:54 PM
Usually 2 stops. 1.4x extender would be 1 stop. I would ask the rental house or test if you have the chance because it may not be exactly 2 stops but a little more or less.
How many stops will a doubler take off? I am using one tomorrow with some Zeiss prime lenses.