I have personally used B&H photo for over 20 years. Online sales from their web site is first rate, you simply really get the best price, shipping is FAST   and free on some items  if there is a problem up to 30 days later they will take it back if you return it as it was shipped.. The best, no problem online dealer I have ever worked with.  
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B&H Photo - Video - Pro Audio

Use this link to get the best professional price from B&H