IR black and white film

[xandra]

Hi guys i need a little help here. I heard that to shoot on IR film we need to extend the exposure. I'm using a FM-3A using IR film and an IR 52mm Filter... but i'm not too sure about the exposure time lets just say I'll be doing it outdoors coz apparently on a bright sunny day it should be exposed for about 1 sec which already as it is. pretty long

 

[catchlights]

what IR film you are using?

the recommended exposure index should already indicate on the box, if doubt, just Google the "film name" and "ISO recommendation"

 

[aquilaa]

Hi guys i need a little help here. I heard that to shoot on IR film we need to extend the exposure. I'm using a FM-3A using IR film and an IR 52mm Filter... but i'm not too sure about the exposure time lets just say I'll be doing it outdoors coz apparently on a bright sunny day it should be exposed for about 1 sec which already as it is. pretty long

The exposure depents on the filter factor of IR filter. For Hoya R72 filter, the filter
factor is 16, need to increase 4 stops for proper exposure. Check the specification
sheet of you IR film, it contains the exposure guide.