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Phillip Mosness

Exposing older B&W Negative

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I'm aware that the prevailing belief is to overexpose older color negative(one stop per decade I've heard), but I'm wondering if the same holds true for Black and White as well.

And on a side note, without any filtering, B&W is rated slightly differently between tungsten and daylight. Is this because it's more sensitive to the blue color temperature of daylight?

 

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B&W definitely holds up longer than color.

 

I shot some Plus-X from 1966 recently and I shot it as 25iso outdoors and it looked great.

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10 hours ago, Robert Houllahan said:

B&W definitely holds up longer than color.

 

I shot some Plus-X from 1966 recently and I shot it as 25iso outdoors and it looked great.

Robert,

Negative or reversal?

What was it originally rated? 

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3 hours ago, Philip Reinhold said:

Kodak Plus-X is a 125 iso Negative Film. So rating it at 25 Iso is exposed around +2 1/4 Stops.

Cheers!

Not sure, but I think that may have been the 135 still photography version.

According to a list I found, 7231 Negative seems to have always been 80D/64T , but Plus X reversal has had a 50/40 (my favorite) and later a 100/80 version before they pulled the plug. 

 

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1965 16mm Plus-X Pan-Chromatic Negative film emulsion 7231 and it was originally rated at.... I am not sure as it does not have an ASA rating on the can...

 

Hmm.

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