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and I want to make a purchase to for my photo outfit. I was looking at the SB-600 or the nikkor 10.5mm fisheye
I have the stock 18-55mm 55-200mm and 50mm with a D40 and D90. I dont know if I want to spend 600 for the fisheye but I need a better lens than my 18-55. will the flash improve my photography that much?