I am currently not sure what to do, should I go ahead and buy the Canon 70-200 f2.8L lens, or buy a flash unit for my photography. I think I should go ahead and get the flash unit because I already have a sigma 105mm f2.8 that people say is actually pretty dang awesome for portraits. (Although I want to do model photography).
Here is the lighting I am looking at, should I go ahead and get this
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Or get a lil more advanced
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I heard it is best to learn lighting with one light..