Hello,
I believe this is my first post on the forums and forgive me if it's a long one. I've been obsessing over the thought of trying EIR/Aerochrome at night under tungsten lighting. I also intend to process myself as C-41 (I like the look better compared to E-6). I'm wondering if anyone has had any experience with this film under these conditions.
The data sheet for EIR recommends half-rating the film under tungsten lighting and still using a yellow 12 filter, but with the addition of a CC50C (cyan correcting) Wratten filter, both of which I have. However, other various posts across the net tell me, at least for black and white IR, you should double the film speed since tungsten puts off more IR than daylight (see this graph). Do you think I should just shoot two exposures of my scenes, one uprated and one down, and not bother shooting one at the normal ISO? I'm just trying to minimize wasting any of these precious frames. Also, these are continuous tungsten lights, not flash.
My second question regards C-41 developing though I'm pretty sure I know the route I want to take. Rocky Mountain Film Lab in Colorado says they process IR color film in C-41 for normal to -15 seconds. The data sheet for Aerochrome says to develop it 10 degrees cooler and for 15 seconds longer than normal, with the other steps remaining standard. Seems like the difference in temperature would offset the time difference in developing but I'll probably go the Kodak-recommended route since, well it's their film and they would know, but also because I'd rather develop a little longer than not long enough. I'm just wondering if anyone has self-processed this film at home before and what their procedure may have been.
Thanks in advance!
I believe this is my first post on the forums and forgive me if it's a long one. I've been obsessing over the thought of trying EIR/Aerochrome at night under tungsten lighting. I also intend to process myself as C-41 (I like the look better compared to E-6). I'm wondering if anyone has had any experience with this film under these conditions.
The data sheet for EIR recommends half-rating the film under tungsten lighting and still using a yellow 12 filter, but with the addition of a CC50C (cyan correcting) Wratten filter, both of which I have. However, other various posts across the net tell me, at least for black and white IR, you should double the film speed since tungsten puts off more IR than daylight (see this graph). Do you think I should just shoot two exposures of my scenes, one uprated and one down, and not bother shooting one at the normal ISO? I'm just trying to minimize wasting any of these precious frames. Also, these are continuous tungsten lights, not flash.
My second question regards C-41 developing though I'm pretty sure I know the route I want to take. Rocky Mountain Film Lab in Colorado says they process IR color film in C-41 for normal to -15 seconds. The data sheet for Aerochrome says to develop it 10 degrees cooler and for 15 seconds longer than normal, with the other steps remaining standard. Seems like the difference in temperature would offset the time difference in developing but I'll probably go the Kodak-recommended route since, well it's their film and they would know, but also because I'd rather develop a little longer than not long enough. I'm just wondering if anyone has self-processed this film at home before and what their procedure may have been.
Thanks in advance!