Having waited for three weeks for Jessops to order a sigma micro lens for me, I got fed up and cancelled my order. The same day I phoned Calumet who had the lens in stock a put it aside for me. When I arrived a couple of hours later the lens was sitting on the counter waiting for me. The gentleman who served me reminded me it would be wise to also purchase a filter to protect the lens glass. Service was quick and efficient and I appreciated the advice given by the staff, who were also polite and cheerful. I would recommend Calumet to any novice photographer like myself.