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Don't try this at home! | by red_lion
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Don't try this at home!

I was eager to do this.

The kit lens that came with my Canon EOS 40D was weak, never worked well and eventually jam once and for all during my visit to London.

So now I gave it a new use - in any case put a filter in front, so that the water did not penetrate inside...

 

To get a good esposure of a splash of water against a white seamless background is not easy, and I still have to keep learning ...

 

I made seven attempts, which means 7 cups of water spilled on the kitchen floor. Then I had to clean ... that's why you shoul not try this at home!!!

 

How it was done:

 

(Please see the diagram below)

1 - On top of a bench I put a white sheet of plexiglass 50x50cm. Further back, vertically, put a translucent white diffusion panel (110cm diameter) that will serve as background.

2 - Behind the panel put a flash controlled by radio, set to roughly 1/4 power. For those who do not know it, the power of the flashes actually depends on the duration of the discharge - so if we want to freeze the action and get clarity, we have to work with low power levels = very short exposure.

3 - I mounted the Canon 40D on a tripod, equipped with the transmitter for the flashes and a remote shutter release cord.

4 - I put my old EFS 17-85 IS USM lens on the white plexiglass and on the top of the lens a glass of water to test the lighting.

5 - I focused automatically, and then went to manual focus and turned off the IS. I adjusted the aperture to f/7.1, the ideal to keep focused the stream of water but not the background. I adjusted the speed to 1 / 160, still synchronizable with the flash, but that no longer would take almost ambient lighting.

6 - Next I shot at different ISO settings to obtain a background and a table with whites burned perfectly, but keeping enough detail in the walls of the cup and the water surface. I got the best compromise at ISO 640.

7 - then put together a radio-controlled flash with a snoot to the right of the camera, set at the minimum power, only to illuminate the lens on the table. I had to put a veil in front of the snoot, to decrease the intensity of light.

8 - All done. I removed the glass with water from the top of the lens and... pour the water and shot at the time the water splashed over the lens!

There were seven attempts and had to stop because I was skating over a river of water ... then it was a little editing in Photoshop CS5 and Lightroom, and... cleaning the mess!

Do not try this at home!

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Technical Info:

Camera: Canon EOS 40D

Lens: EF-S15-85mm f/3.5-5.6 IS USM

Focal Length: 50 mm

Sensitivity: ISO 640

Exposure: 1/160 sec at f/7,1

Exposure bias: 0 EV

Exposure Program: Manual

Metering Mode: Pattern

Flash: two external flashes, wireless, not TTL

GPS

Coordinates:

Altitude:

©Henrique Silva, all rights reserved - no reproduction without prior permission

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Taken on January 4, 2012