IR using Nikon D40x + filter Hoya r72

Question: i have nikon D40 + filter hoya r72..
if i want to avoid the darkness of the image, how to set the speed (minimum) ??

Answer:
using D40, you should set the settings to RAW, add tripod, software nikon capture NX, and NOISEWARE, well, and photoshop..

to avoid dark image, first, shoot at the place with enough level of sun light.. (d'oh)..
set the speed at 1/10.

set wb to auto.. it's the best if you're using nikon d40/x

don't be dissapointed if the result (your photo) turning into red, cause there's nikon capture for fixing the white balance..

then, set wb using grey point (in nikon capture NX).. the result would turned into absolute darkness.. raise the level of exposure to 0.5..

after that, save as at the max quality (jpeg format)..

open the file using photoshop..
raise the level of exposure +1..

then, you play the colour using channel mixer..

hope this could help..