I am getting ready to order a Pentax 77mm lens that goes for about $660 usd. B/H is where I typically buy and Pentax frequently has a $100 rebate on it, but not currently. I saw on Ebay that Henry's from Canada has the lens new for $549. I've heard of Henrys before but never bought from them. It comes with a 2 year Canadian warranty and a 1 year international warranty. So, is Henrys reputable?