ANEK - A Natural Double Exposure Photography Tool

Print Parameters : 0.2mm layer height - 5 Perimeters - Supports Required

(WILL BE ADDING DO's & DONT LIST REQUIRED FOR ANEK PHOTOGRAPHY SOON)

ANEK - अनेक

More than one    |    Multiple    |    एक से अधिक   । 

In photography and cinematography, a multiple exposure is the superimposition of two or more exposures to create a single image, and double exposure has a corresponding meaning in respect of two images. The exposure values may or may not be identical to each other. To do a double exposure intentionally, you just expose the same frame of film twice. It was really easy to do with manual film cameras. Digital cameras, not so much. Until now! 

This purely experimental photography tool changes all that! 

With ANEK - a clip-on tool for smartphones, enables a natural multiple exposure on a digital device in a single click! 

This is a purely experimental photography tool and needs understanding of photography to get better results.

It all started while tinkering with an old binocular which I had dismantled to see what's inside! This is where I came across this interesting optical element called a ‘PORRO PRISM’ 

In optics, a Porro prism, named for its inventor Ignazio Porro, is a type of reflection prism used in optical instruments to alter the orientation of an image. It consists of a block of material shaped like a right geometric prism with right-angled triangular end faces. In operation, light enters the large rectangular face of the prism, undergoes total internal reflection twice from the sloped faces, and exits again through the large rectangular face. When the light enters and therefore exits the glass at normal incidence, the prism is not dispersive.

An image travelling through a Porro prism is rotated by 180° and exits in the opposite direction offset from its entry point. While a single Porro prism can be constructed to work as well as a roof prism, it is seldom used as such. Using the porro prism in the different orientation, we get an image output which is the mix of the Porro prism and the roof prism, forcing 2 optical inputs on the image sensor at the same time, thus giving us a natural double exposure (output subject to the light conditions). I say a natural double exposure because it can only capture the elements which are in front of us, unlike the other methods.

In a typical Porro prism binocular, you will find 4 porro prisms (2 on each side). I had a cheap binocular with for a long time which I opened and have used the prisms. A high quality porro prism will definitely give better results.

Print Parameters - 

For ANEK Small / Big (Tool) :

• 0.2mm layer height - 5 Perimeters - Supports Required

For ANEK Case :

• Print in Place
• 0.2mm layer height - 5 Perimeters
• Fill angle - 0 or 90°

Once you have the Porro prism with you, you will have to use a thin double sided tape / superglue / glue stick to make sure the prism doesn't fall from the 3D printed holder.

How does ANEK work?

Balanced light conditions, cloudy days, artificial light is suitable to use this tool.

All the photos below were clicked on Redmi K20 Pro / Mi 9T Pro (some on Gcam and some on the default camera app) using this ANEK photography tool and have been cropped and edited in lightroom.

Gcam - Wide 1x (unedited)

Gcam - Telephoto 2x (unedited)

Gcam - Telephoto 2x - cropped and edited in Lightroom

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