Friday 3 August 2012

ELearn research question for Workshop 2 - Studio


1.      What is the Guide Aperture (GA) of both the Pulso and Primo units?
a.  f64 at 2m and ISO100       

2.      Let’s assume you had a flash unit with a GA of f64.  With a subject placed 4m from the flash head the f-number to use to achieve correct exposure would be;

      [a]        f8
      [b]        f22
      [c]        f32
      [d]        f64

3.      Using the same flash unit as in question 2 above and a subject placed 16m from the flash head the f-number to use to achieve correct exposure would be;

      [a]        f8
      [b]        f22
      [c]        f32
      [d]        f64

4.      Changing the Pulso 2 power setting from 10 to 9;

[a]        halves the output
[b]        reduces the output by 50%
[c]        reduces the output by ‘1-stop’ (photo lingo)
[d]        would require the use of a lens aperture 1 stop wider to achieve the same exposure
[e]        I think all of the above
[f]        all of the above and I’m not guessing

5.      Describe what you understand by the term Symmetrical Power Distribution.
a   Symmetrical Power Distribution refers to giving an equal amount of power to each head that is plugged into the Pulso 2, for example if one head is plugged in then 100% of the Pulso’s power will be discharged into it but if two heads are plugged in than the Pulso will distribute 50% of its power into each head.


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