If you're using B&W rendering to JPEGs in-camera, lock the white  
balance to a single value and experiment. You have one basic B&W  
rendering curve for the output and filtering the light will produce  
results similar to doing it with B&W film.

If you're capturing RAW format and rendering to B&W in RAW or RGB  
processing, it's pretty much a waste of time. All you're doing is  
cutting sensitivity and reducing the amount of data you have to work,  
there's no real gain from doing that.

Godfrey

On Mar 19, 2008, at 1:15 PM, Bill Owens wrote:

> If I were to use a B&W filter, say yellow or red on a DSLR then  
> convert the
> image from the sensor to B&W, would the results be the same as on  
> film?
>
> Bill
>
>
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