Customer Reviews

Tiffen 52mm 47 Filter (Blue)

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The blue filter in b&w digital photographs will accentuate the sky, reflections of the sky, and will lighten blue items. It will darken red / orange / green items, especially foilage or sunsets.

With forensic photography, the blue helps to enhance florescing chemical reactions that give off blue light such as The reaction with 3-aminophthalhydrazide (luminol) - by accenting the glow from the reagent against the background it will be more pronounced in the photograph.

Also I use them when shooting under blacklight, but orange can be used for a different effect.

Finally filters can be stacked, normally no more than 2, to produce unique effects in B&W exposure. Again, digital cameras allow instant review of the effect and re-takes on the spot if its not desired. There is lots of room for experimentation. Shooting during the blue hour when the night sky (around sunrise or sunset) is mostly blue can be enhanced with this filter.

Very useful for enhancing clouds and fog, where as a red/yellow/or orange filter eliminates clouds and fog/haze, the blue will make it stand out with most black and white films.

It is a too dark blue filter and as such it cannot be used in a regular photography. It is necessary to have a choice of filters with different rate of density.