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Ok I have just taken delivery of the two head Lencarta set, with radio trigger and softboxes I'm really pleased with them and looking forward to the steep learning curve I have just set myself.
I'd be grateful for some clarification to ensure I've got the basics right. The guide number of the lights is 99 giving an aperture of f11 at 9ft.
So, if I half the power on the heads I would need an aperture of 5.6 to get the same level of exposure. I can half the power either on the flash head or by moving the light back 9ft.
So conversely if I change the aperture I need to adjust the power on the head or move it further away.
Sorry if this is stating the obvious I just need to make sure I've understood correctly.
My next question is that I assume I would use one light to light my model and one to provide some fill. or background lighting. Do I need to account for both flash heads when calculating my aperture or power of flash?
I assume that the fill flash will be of a lower power to correclty expose the b/g.
Have I got this right or am I on an even steeper learning curve than I thought:shrug:
Thanks for your help folks
I'd be grateful for some clarification to ensure I've got the basics right. The guide number of the lights is 99 giving an aperture of f11 at 9ft.
So, if I half the power on the heads I would need an aperture of 5.6 to get the same level of exposure. I can half the power either on the flash head or by moving the light back 9ft.
So conversely if I change the aperture I need to adjust the power on the head or move it further away.
Sorry if this is stating the obvious I just need to make sure I've understood correctly.
My next question is that I assume I would use one light to light my model and one to provide some fill. or background lighting. Do I need to account for both flash heads when calculating my aperture or power of flash?
I assume that the fill flash will be of a lower power to correclty expose the b/g.
Have I got this right or am I on an even steeper learning curve than I thought:shrug:
Thanks for your help folks