Landberg
Well-known
Hi!
I have used the Hexar AF for a long time but i have never used it with a ND-filter. If i use a 8X ND-filter i need to adjust the ISO 3 stops i guess? I like shooting tri-x at 1600, so if i use a 8X filter i will have to set the camera at ISO 400, right?
If i´m wrong please explain to me!
I have used the Hexar AF for a long time but i have never used it with a ND-filter. If i use a 8X ND-filter i need to adjust the ISO 3 stops i guess? I like shooting tri-x at 1600, so if i use a 8X filter i will have to set the camera at ISO 400, right?
If i´m wrong please explain to me!
daveleo
what?
Here is my thinking.
Tri-X is ISO 400. You shoot it at ISO 1600 which underexposes it 2 f-stops (400>800>1600).
If you use a 3-stop filter and shoot it at ISO400, Tri-X will be underexposed 3 stops, which means (I believe) you need to shoot it at ISO200 when you use the 3-stop filter and want to underexpose it only 2 stops.
Tri-X is ISO 400. You shoot it at ISO 1600 which underexposes it 2 f-stops (400>800>1600).
If you use a 3-stop filter and shoot it at ISO400, Tri-X will be underexposed 3 stops, which means (I believe) you need to shoot it at ISO200 when you use the 3-stop filter and want to underexpose it only 2 stops.
Landberg
Well-known
Of course! thank you!
My plan is to use the ND filter during daytime and no filter during the night.
thank you!My plan is to use the ND filter during daytime and no filter during the night.