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PARADOX
A seemingly contradictory statement
that may nonetheless be true.

Paradox Spectral Lighting

Paradox Spectral Lighting is designed for use by specialised still photographers and professional video camera operators, and is also available to anyone interested in special colour effects.
The information below is from the prototype, feedback about the system will help me with further devolopment.

The following tests was made using a standard domestic Canon Powershot A80 digital camera to demonstrate the colour mixing potential of the Paradox Spectral lighting system.
It is also under test for video camera use.

This exercise in not intended as a professional photo shoot, it is a first test of this new experimental lighting system.

The photos were taken in my garden of plants for a varied colour subject test.
The prototype is powered from a standard 12volt rechargeable battery but could also be powered from a mains supply via a transformer.

The system consists of 6 individual sets of coloured LEDs, Red, Orange, Yellow, Green, Cyan, Blue.
Each colour has an individual intensity control allowing infinite colour selection/mixing from the colour pallet available.
The use of variable controls allows the photographer/user to select desired colours/tones without the need of coloured filters over white light.

I have only used a few of the exposure settings available to my camera, the manual control available to professional cameras would allow many experimental and new photograph techniques.

This prototype is fitted with 10 LEDs of each colour mounted in a ring light, but the numbers of LED can be increased, the only factor for consideration is the increased power demand with increased numbers of LED.
Further side lighting units can also be constructed for greater illumination and effect, these could be controlled from one controller or individually.

Test 1 - Flower bed, bushes, pond and stones -- exposure 5 seconds f 2.8

Taken on standard flash - on Auto setting
The following order of colours used are - Red, orange, yellow, green, cyan, blue, red + green + blue, red + blue, green + orange + yellow, blue + green, cyan + orange, blue + green + cyan, red + orange + yellow

Test 2 - Garden path, bushes, flowers and fence -- exposure 5 seconds f 2.8

Taken on standard flash - on Auto setting
The following order of colours used are - Red, orange, yellow, green, cyan, blue, red + green + blue, red + blue, green + orange + yellow, blue + green, cyan + orange, blue + green + cyan, red + orange + yellow

Test 3 - Smoke bush and green foliage -- exposure 2.5 seconds f 4.5

Taken on standard flash - on Auto setting
The following order of colours used are - Red, orange, yellow, green, cyan, blue, red + green + blue, red + blue, green + orange + yellow, blue + green, cyan + orange, blue + green + cyan, red + orange + yellow

This initial test is to establish how different coloured objects absorb and reflect the projected light from the LEDs, I am sure there are better tests that could be undertaken but this is the start.

The photos are not altered, filtered or cropped to allow you to judge the ability of the light to illuminate edges of the objects and the range of the light.
My camera unfortunately only saves in jpg some the file compression is beyond my control.

I welcome comments and reactions and if you are interest in this system and helping me developing it further please let me know.

E-mail Paul Rowland

Video tests

Screen shots of light of individual colours projected onto beige wall and looking at the system.

All design, shape, construction, idea, circuit design - copyright Paul Rowland 7-7-2010