There are and some pros and cons of using halogen (constant) lamps:
Pros: softer and stronger light meaning less shadows; less reflections off metal surfaces; better adjustment and placement of light source; and better manual exposure/aperture settings with camera.
Cons: expensive lighting equipment (~ $700); bulky for transportation; long setup time; time consuming for perfect photos; grey card or light meter required; and HOT as hell!
Depending if one is a perfectionist, the halogen constant lamps will give better results.
Albert
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