Downrate (pull) Kodak 400CN or use redfilter?

[patrik in sweden]

I use this film quite a bit and like it a lot. However sometimes I

find it's too fast and I have then used my B+W 091 Red filter, the

results are too dark. I use this filter without problems on Tri-X.

Why is that?

Does anyone know if I can downrate(pull) this film to ISO 100 and

still develop it at normal ISO 400?

[jay_.]

You can underexpose 400CN at EI 100 with normal development with no major problems although this film performs at its optimum between EI200 and 320. If you use a filter to cut the light use a gray neutral-density or even a polarizer in a pinch, not a red filter.

[tom5]

My wife used one of my Fuji NPZ (800) rolls and didn't reset the ASA from 400. Normally overexposure isn't too bad for color negative, as I remember. So, should I have the lab pull the developing one stop or let it go through, as is?

[EricM]

Patrik, this film sings when zone 5 is placed at 250asa and dev N. I don't see a point to shooting any more of an overexposure, with a pull in development or not. this is a color film, and a red filter will not provide the same contrast increasing results a true B&W film. as Jay said, a neutral density filter at most should be used.

 

Tom, you will probably find the 400asa setting more pleasing than 800asa, unless it was shot at high noon on a sunny day. I shoot it at 500 all the time and print down. This film is truly amazing, even when pushed to 1600.

[jay_.]

<<You can underexpose 400CN at EI 100 >>

 

Obviously I meant overexpose.

[Robin Smith]

"go through, as is?"

 

Go through as is.