Scanning 400 DIN Negatives

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2 total messages Started by S Booth Sat, 11 Nov 2000 04:30

Author: S Booth
Date: Sat, 11 Nov 2000 04:30

7 lines
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Simple Yes /No question
 If I scanned a 400 Din speed negative film at 2400 dpi I would see the
grain. ??
I thinking not

Shane
Asking stupid questions to get stupid answers.

Re: Scanning 400 DIN Negatives

Author: Colin J Donoghue
Date: Sat, 11 Nov 2000 07:33

22 lines
1801 bytes

S Booth wrote:
> 
> Simple Yes /No question
>  If I scanned a 400 Din speed negative film at 2400 dpi I would see the
> grain. ??
> I thinking not
> 
> Shane
> Asking stupid questions to get stupid answers.

Mistake, yes, stupid, probably not...
I think you mean 400 ISO, which is 27deg. DIN.  ISO is a linear speed
rating, double the number is double the film speed, but DIN is a
logarithmic scale, where every 3 degrees equals double the speed.

About grain at 2400 dpi - it depends on which film.  Not all 400 ISO
films are created equal, and exposure and processing play a part as
well.  Gnerally speaking, grain would probably be visible.

Colin.

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