Quote Originally Posted by Mark Elberson
That's a great point that I overlooked...your Vivitars have a built in holder don't they?

Yes, they do. You can buy gels that are specifically made to fit into the holder (I bought a set on ebay), but I like how the gels from photogels.com fit perfectly in the holderyet easily slide in and out (however, you might have to use tape if there is a strong wind). Plus, I can stack gels if I want as well as use light modifiers that fit snugly to the flash.