Black and White
While black and white pictures are still used today, they are also associated with older and vintage pictures. With a color digital file and a photo editing program you can change the color profile of the picture and convert it to black and white.
Film Grain
Black and white film always had grain that was visible in pictures. Depending on the type of film, film speed and how it was produced all had an effect on how much grain was visible in the final print. You can add grain to digital images in many photo editing programs that will add to the vintage effect of your picture.
Vignetting
Vignetting is where the corners of the picture appear to be slightly darker. In today̵7;s lenses with their advanced optics it is not that prevalent. However in older lenses it was often seen. You can add this effect in digital post production by ̶0;burning̶1; the corners or applying a ̶0;vignetting̶1; filter that some programs, like Adobe Photoshop, have in their library.
Sepia
Like black and white, sepia is a monochromatic image that has a slightly brownish tint to it. Sepia is often associated with vintage photos that were either printed that way or have browned slightly over time. Any digital program that allows you to adjust the color profile of your pictures will give you the ability to adjust the image color to achieve a sepia effect.