Find an object that is so shiny that you can see your face in it. Choose an object that you can lay flat on the floor and photograph from above. Choose a simple background. Set up the object, camera and a light positioned close to the camera. Through the viewfinder, you should be able to see how unsatisfactory the effect is. Take a photo for reference.
Take some tracing paper and roll it into the shape of a long cone so that the wide end will set around the object (but out of view), and so that it tapers upwards to the small end, which should just surround the lens. Ideally, the length of this cone should be exactly the distance from the camera to your subject. Tape, and trim as necessary.
Take a second photograph. Experiment with a light in different positions and at different distances. Also try changing the angle of the object slightly.
For the life of me I could not get the exercise with the tracing paper done. I did not have enough tracing paper it would seem, although I went through about half a roll and not matter what I did, I still got an image in the surface of my object. The shiniest object that I could find in my house that gave a reflection were some cutlery pieces. I’m more a fan of brushed steel than stainless. The cutlery is not new or straight out of the box, so some wear and tear and nicks will be visible on the metal’s surface. Unfortunately my wireless triggers render the Nikon’s CLS system null and void, so my flash details don’t record on my EXIF data and I did not make a note on each photograph as to what the flash settings were. I mainly experimented with full power, 1/2 power, 1/4 power and 1/8 power, occasionally using +.03 and +.07 exposure compensation. My speedlight was used with a diffusion dome throughout.
Here is my reference image (fig 01). The spoon was placed on the floor on top of a black velour garment. The tripod was placed over the spoon and the light was off to one side. Terrible image – there I am with the tripod and half my kitchen is also reflected in the spoon.
Fig 02 – one of the many attempts to manhandle the tracing paper into shape. Still no better than before.
Fig 03 – I gave up on the tracing paper effort and put the spoon on a table on top of the black velour jacket and started to experiment finding the correct placement of the light. I found with the light on camera left I was getting a little too much of a hot spot on the metal.
My jacket had picked up a bit too much dust to photograph well, so I switched to black card (fig 04), which unfortunately doesn’t photograph as well as the black material.
I then switched to a white card and tried to soften the shadows and exposed to brighten the metal (fig 05).
I then dialed down the flash power so that I could darken the metal (fig 06). I think this is possibly my favourite image as the deeper colour gives a bit more form to the slight octagonal shape of the cutlery’s handles.
I would have preferred to soften the shadows of the two spoons a bit more, but I’m not quite sure how that should be done as the last three images were done with a big diffusion panel in front of the speedlight. I’m thinking I probably need one or two gobos positioned over the spoons to cut the shadows. Unfortunately all the voice activated light stands have retired for the night so I will have to make do with this result for now.
The following day I decided to have one more go at this using my light tent (fig 07). The light was positioned 45 degrees to the cutlery on camera left and a diffuser was held in front of the light. The shadows are definitely more acceptable in this image.
I don’t think I will ever look at spoons in the same way again without thinking of how the light is striking them and what reflections are bouncing back. I have learned that one has to consider so much more than just the family of angles and positioning of the light and camera. All possible distracting elements that might possibly show up in a reflection have to be identified and removed or camouflaged wherever possible.
Hunter, Fil et al, (2012). Light—Science & Magic An Introduction to Photographic Lighting. 4th ed. Oxford: Focal Press