Here is the whole lot i picked up today,traded my olympus ep2 kit for it and i think i got an excellent deal. 500c/m,80mm lens,2 a12 backs,1 a24 back,a polaroid back,huge shade/belows,a close up hasselblad lens,an accumatte screen and 2 prism screens,both are split prisms but at different angles, a grip and some clips for a shoulder strap plus a few other caps. here is a mask he said would help framing for 8x10 enlargements? Nice little bubble level. And this strange contraption. So any advice for a newbie to hasselblad,a site with manuals? What exactly do you think the clear mask is for and how do i use it? What is the contraption in the last pick,it mounts on the outer bayonet and seems threaded on the inside,maybe for screw in filters.Has a 60 with a circle and line through the circle on it and is made by hasselblad. And last question is did i get a good trade,i think so even if priced at keh bargain i think the value is more than my ep2 which will depreciate rapidly and i did not like due to it's digital nature. I do like this as it is so much lighter than my rz67 kit and i think i will keep the kit like this and not add other lenses to keep the weight down.Except maybe a 50mm as i want a 65mm for my rz but i feel the 50 on the hassie will serve me better than the 65 on the rz.Thanks.