A Test on Profoto B2 Battery Pack with Pro head + Ring flash - Studio lighting

 All these test pictures were done on Profoto B2 Battery Pack with Pro Head lamps with other lighting modifier accessories.

1.

Profoto Silver Umbrella Large against white seamless backdrop - under expose

2.

Profoto Silver Umbrella Large against white seamless backdrop - over expose

3.

this one tested out using Profoto Ring flash - under expose

 The very good design of Pro Head lamp's standard reflector can slide from scale 4 up to scale 10 to enhance the illumination of the light out put. below are samples of the effect starting from scale 10 to scale 4 [wide to zoom ]

4.

ProHead with Standard Reflector at Wide Open at scale 10, giving a soft spread of illumination

5.

At Scale 9 as indicate on lamp head, alittle concentrate

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At scale 8, correctly expose

7.

At scale 7, is equivalent to standard 50mm view on 35mm SLR terms. medium zoom

8.

at scale 6,  zoom, noticeable + 1.5 stop over exposure

9.

at scale 5, + 2stops over

10.

At scale 4, + 2.5 stop over expose

The experiment done below are the same as above but this time we want to check how even is the light fall off at the edge. but to our surprise how even and consistence the illumination of the light output at all scale, no hot spot at centre or vignetting at corners of the frame.  * mind you, these two experiments are done without manipulating the power output from the power pack, only sliding the reflector on the lamp head.

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This experiment is to show how soft the [bare, hard light] illuminted by Profoto lamp head on hard subject like metal, as if we have put on a soft box or diffuser to soften it. very soothing. by so saying, i am sure experience photographers will know the difference. sometimes visual effect is best let the eye interpret better than words.
we use a Pro Ring flash on lens, and one Pro head lamp attached with a medium honeycomb [no.10] placed directly behind slightly higher than the lens to create such effect.