Originally Posted by ToddB
Filters are best for whenever you need them. I get great results shooting portraits with orange and even sometimes red filters. They hide blemishes. A red filter makes a Caucasian woman's skin glow. It can be a very pleasing effect.
"Stopping down" means constricting how much light gets to the film. It would mean going from f/8 to f/16. "Down" is referring to the area of the aperture getting smaller.
A B+W #16 Yellow-Orange filter requires 1.3 stops of exposure compensation according to the B&H website. So since the filter isn't clear and colorless it blocks some of the light. So you have to compensate by opening up a stop and a third to let in a sufficient amount of light. Besides basic UV and warming filters almost all filters eat up some light and you have to compensate by either increasing exposure time or opening up the aperture.
andrew.roos, was kind of right about street photography. He was wrong about the degree of compensation necessary for your particular filter, but his point is valid. Whatever film you use you will be somewhat less able to hand hold it. In street photography you depend on depth of field to keep your fast spontaneous shot in focus. Since you are shooting medium format you will need all the depth of field you can get. Of course you could simply use faster film but then you will get more grain. Everything in photography is about trade offs. There is no one best way to do just about anything.
My advice since you already have the filter is to experiment. Have your girlfriend or sister pose for you and take a series of shots with various filters and without. Make a note of your shutter speeds and apertures. Then you can decide whether you want to shave 1.3 stops off your ISO for the results you are getting. The other thing you have to consider is the skin and contrast may look nice with the filter but you may have blur from hand shake or an out of focus subject because of restricted depth of field. Tons of trade offs.
Last edited by Noble; 06-17-2013 at 06:58 PM. Click to view previous post history.