About a month ago, we discussed the AVAST Porthole, which is a nifty top down photo box that attaches directly to the lens of your SLR camera. The Porthole housing measures 3 -3/8″, which left some aquarium photographers wanting more. Responding to their customers’ requests, AVAST has decided to release a supersized version. The new Porthole XL will accommodate to a wider array of lenses, as it has a barrel length of 6-3/8″. The Porthole XL will only cost $35 and is currently on backorder, which is no surprise given the price point. The next batch of these extra large top down boxes will be available December 8th.