This exercise involves setting up a still life first with undiffused light and then with diffused light. I have used a light box first without its diffusion material and then with diffusion material. I would expect diffuse light to produce less shadows as would a large light. I would expect diffuse light to have softer edges to any shadows we see. However as I am thinking about my final assignment and using a metal christmas decoration I have decided to use this subject for this exercise. So I know from Light Science and Magic that metal reflects mostly direct light. I have a black background and so I would not expect to see any shadows on the background. I am interested in the highlights and shadows of the actual subject.
The camera is set on a tripod and at an angle which will allow me to correct angle in order to take advantage of the family of angles that reflect direct reflection. The light is large and so the light is being reflected in many angles. The results are interesting. Both shots were taken at f 11 the first shot at 1/250 however in order to allow for the light absorbed by the diffusion material I have taken the second shot at 1/180.
Here are my findings. At first when I looked at the diffused image I thought it was unfocused however both images were taken on a tripod the shutter speed was fast enough to avoid any camera shake at all. What I noticed is that with the diffused version the shadows are less distinguished which causes us to lose detail in the object. I feel that the undiffused version gives a good sense of highlight and shadow and creates better texture in this particular subject. If it was a portrait of a model and I wanted less detail then I would use diffuse light however for this particular subject I was happy the large light allowed me to cover the family of angles so as o reflect from many parts of the metal object. I have good highlights and good shadow and I feel for this subject it worked best. The soft shadows in the diffused image come across as lacking in detail.
Also from Shadow Fill Exercise
For this exercise. I have set up my camera in front of a still life of a fruit bowl, I have placed my Key light to the left at 90 degrees. The first image I have taken is with no diffusion.
The next image is identical however I have added diffusion.