What affect will a 85B filter have on back and white pan film

[Paul Howell]

I bought a set of 46mm filters for a point and shoot camera, the set has yellow, blue, and a set of color compensating filters including a 85B and a FL-3, both look some what orangish to pink. Could they be use as sub for an orange filter?

 

[gone]

Those color filters that you mentioned (the 85B is for tungston lighting and the FL is for florescent lighting) are only for color films. I doubt you would want to stack them. When you say orange filter, do you mean w/ B&W films? Your yellow filter could be used for that, assuming it's a B&W yellow filter. Otherwise, it and the blue are probably color color filters too.

 

[NB23]

Not much, loss of a stop.

 

[Jojje]

Next to nothing effect, I've tried in the 80's. Use yellow instead.

 

[Doremus Scudder]

Jojje has got your answer.

I just compared transmission curves for the #85B and #8 filters in the Kodak Filters Handbook. The #8 blocks everything shorter than 450 nm and falls off from there. The #85B still transmits 22% at 450nm and then falls off. Its effect on panchromatic film would be very slight, but kind of like a weak yellow filter.

Best,

Doremus

 

[Paul Howell]

Those color filters that you mentioned (the 85B is for tungston lighting and the FL is for florescent lighting) are only for color films. I doubt you would want to stack them. When you say orange filter, do you mean w/ B&W films? Your yellow filter could be used for that, assuming it's a B&W yellow filter. Otherwise, it and the blue are probably color color filters too.

I have green, yellow, orange and red from 48mm to 72mm + Cokin, 46mm contrast compensation are hard to find, I found this set on Ebay, came with 2 yellow, but no orange or red. Just hoping against hope that I could make use the 85B.

Jojje has got your answer.
I just compared transmission curves for the #85B and #8 filters in the Kodak Filters Handbook. The #8 blocks everything shorter than 450 nm and falls off from there. The #85B still transmits 22% at 450nm and then falls off. Its effect on panchromatic film would be very slight, but kind of like a weak yellow filter.
Best,
Doremus

Yeah, makes sense. I don't have the Kodak Handbook, thanks.