Month: March 2021

In the previous posts we looked at overt halation inducing filters which achieve their effect by use of fine particles embedded within the glass. As beautiful and stylish as these effects are, it is not always ideal to soften the images in a way that spills the light so obviously. Optical…

As already discussed, halation diffusion, provides an effect whereby a source of light acquires a halo in the shot. The effect is produced by embedding tiny particles or meshes into the glass in order to scatter and diffuse the light. In terms of manufacturing, black halation diffusion as opposed to…

Halation diffusion, as discussed last week, causes an effect whereby a source of light acquires a halo in the shot. White halation filters typically do this by producing a clean and sometimes shimmering halo effect but without losing the sharpness of the shot. Tiffen Glimmerglass for instance creates a subtle…

Diffusion – whether at the source of light or at the lens via a filter, is a way of reducing the concentration of the light. The earliest methods of doing this often involved putting vaseline or women’s stockings over the lens. (Please do not try putting vaseline on our lenses,…