Monday, 9 July 2018

How can using a color filter help to improve a black and white photo?


Okay, so I know that using a color filter can have some desirable effects, for instance, if you use a certain color filter, it will diminish the effects of any skin problems a person has. What color filters (Digital or analog) can improve the overall appearance of a photo in what kinds of situations?



Answer



Don't use real colored filters on a normal digital camera - for a 15MP bayer sensor camera with a red filter, you would actually be shooting a 3.75MP image.


The exception is if you are doing IR or have a sensor modified to do only B&W photography.


In general for modern B&W digital photography your equipment is shooting in color, and then you decide after that what mix of color channels you want to use, so it's really up to you to decide the balance that looks best.


One common filter choice that people use is a red filter to darken the sky and enhance clouds. You can find pretty good descriptions of what filtering certain colors does for photography here:


http://www.camerafilters.com/pages/colored.aspx



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