Hi!
Came across this formula:
Correct Aperture value = aperture on index times(x) focal length divded by sum focal length and extension.
Is this useful?
Does anyone still use this?
Or is there a better alternative?
Is it necessary nowadays?
Pls enlighten thks!:sweat:
Came across this formula:
Correct Aperture value = aperture on index times(x) focal length divded by sum focal length and extension.
Is this useful?
Does anyone still use this?
Or is there a better alternative?
Is it necessary nowadays?
Pls enlighten thks!:sweat: