Research Task 3

1. Complete the following list of f-numbers (do not use 1/3 stops)

f1.0 f1.4 f2 f2.8 f4 f5.6 f8 f11 f16 f22 f32

2. In a given studio portrait situation where the subject is lit by one source and a reflector, if an incident light reading of the lit side is f16 and an incident light reading of the side lit with reflected light is f1.4 then the difference in illumination will be;

[a] 5 stops [b] 6 stops [c] 7 stops [d] 8 stops

3. The difference in illumination described in question 2 above expressed as a ‘lighting ratio’ will be;

[a] 4:1 [c] 8:1 [c] 32:1 [d] 128:1

4. If the maximum output of a powerpack is 1200J, the output of the same powerpack when set on half power will be;

[a] 1600J [b] 1200J [c] 800J [d] 600J

5. If in the situation described above in question 4 an incident light meter is used to measure the output of the powerpack set to maximum output and from a given distance is f22, the new f-number at the same distance when the powerpack is set to half power will be;

[a] f22 [b] f16 [c] f11 [d] f86.

In a given situation you are using two powerpacks to photograph a subject using multiple discharges, eg. 10 sequential discharges. One powerpack is set to a greater output level than the other. You need to decide which pack will be the master pack to be triggered from the camera and which will be the slave pack triggered either optically or via another method from the master.

Describe which pack will be the master and why. The diagram below may help. 

I honestly have no clue, and am completely guessing here...but I would say that the pack producing higher output flashes would be the master pack?? And why....um...because it has a higher output, and closer to the camera and subject? Maybe??

Do some basic research into small-product photography to prepare yourself for next week’s class. Nothing too specific just try to identify several types/styles and uses of small-product photographs. Familiarise yourself with basic lighting techniques; try to identify how they were lit.

Enjoy

Here are couple useful tips I've found:

• when dealing with reflective objects, use a polarising filter
• use a smaller aperture with a wider depth of field, to get all the product in focus

And just a few inspirational shots :)

Noticed that small products are often lit from either side lighting, or a large diffused light directly above.