Home photography ideas: Use a prism to shoot dazzling images

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A simple prism is designed to split up the spectrum of white light into separate wavelengths. As white light passes through, we can see the visible spectrum of red, orange, yellow, green, blue, indigo and violet. 

This spurred interest from the Romans and later various European scientists, most notably Sir Isaac Newton. After the establishment of spectroscopy in the 17th Century, there have been a variety of applications for prisms – one of the most common being, of course, photography.

Many DSLRs have a five-sided prism inside them; light enters through the lens, bounces off the mirror and then reflects through the pentaprism, before displaying in the viewfinder. 

However, prisms don't only help us see what we’re shooting; we can also use them to create funky, creative distortions in front of the lens. They spread light, reflect the environment, and even add glare and flare to your shots. And obviously you can use them traditionally, and pass light through them in front of a dark background. 

It’s surprisingly accessible for everyone to give this a go. If you don't already have one, you can pick up a prism online rather inexpensively – below are a couple of links, or you could try the

creative filter system with multiple prism attachments for artistic images.

Buy a prism from Amazon US

Buy a prism from Amazon UK

How to use a prism for photography

01 Go manual

Use manual mode to set your aperture to f/5.6 and Auto ISO, so that your camera will adjust the sensitivity depending on whether you’re shooting inside or outside. Shooting outside or in a bright location inside works best, because there are lots of light sources to reflect and refract.

02 Framing up

When holding the prism in front of the lens for glare and flare, keep it close to the front element so that you can fill the frame to affect the entire scene. We found a focal length of around 50mm provided some of the most pleasing results, but don’t be afraid to experiment; you can get different sizes of prism and use alternative lenses to vary the effect.

03 Shooting the spectrum

Perhaps you want to capture the light as it bends through the prism? If that's the case, get a plain and dark background, like a piece of card, to place your prism on and shine a light through with a torch (a phone torch will also do the trick). Just make sure that the area is dark so you can see the colors easily.

04 Experiment further

Now that you’re all set up, try playing with the prism in a variety of places, both light and dark. Portraits are fun to add glare and flare to, but other scenes can become ethereal when light is diffused widely to produce areas of spectral highlights. There is really no method to the madness here – experimentation is the key!

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N-Photo: The Nikon Magazine is a monthly publication that's entirely dedicated to Nikon users. As a 100% independent magazine, you can be assured of unbiased opinion from a trustworthy team of devoted photography experts including editor Adam Waring and Deputy Editor Mike Harris

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