Saturday, June 9, 2012

Creative Colour Challenge

When I receive a commission to create a 'different' kind of photograph, and I manage to carry out the assignment to spec, it affirms that 'it is all worth it'! Challenges are the spice of photography.


I received a commissioned from a client to photograph a range of lamps which they used in their engineering plants. The image specifications included to capture the colours of Ultra Violet (UV) lighting the lamps, as well as that the lamps had to be as sharp/in focus as possible.


After purchasing the necessary UV lamps and other items for the shoot, the assignment could be tackled. I decided to use a 24-70mm f/2.8 Nikkor lens.


The first round in studio was a disaster. I spent hours setting up the UV lights, reflecting them, positioning them and shooting them. The complicating factor was that the image needed to be exposed using the UV light only - this essentially meant long exposures and wide apertures. But I needed smaller apertures and faster shutter speeds for better quality - certainly not bumping up the ISO, as low noise and grain was not negotiable. I aborted my first technical approach and decided to go back to the drawing board.


I ended up shooting the lamps using one studio flash head, fitted with a deep octa soft box, and a 105mm f/2.8 Nikkor Micro lens. This allowed me to capture the required lamp images at 1/160 f/36 ISO125.


But, did the flash light not 'wash away' the UV colours?


How was the final shot (featured below) achieved?


The solution was quite simple, but took many hours to finally figure out...

The answer was in the post-production phase. I opened the RAW file in Photoshop and simply played with the temperature and tint adjustment sliders!!