Excellent for extending the throw of your flash when using 300mm or longer lenses. It really works, trust me, never look into this when you set off the flash !
See description at B&H: http://www.bhphotovideo.com/c/produc...eamer_for.html
Shipping included, Conus only. N.R.
Sorry, I do not do paypal anymore. Ck or money order.