Canon EF 8-15mm f/4 L USM Fisheye Lens I am seriously considering this lens in the future, but I still need to see more reviews and samples. will anyone know where I can get legit samples? I do enjoy the 35mm L but this lens seems to offer a lot of interesting views! 8 would be insane and 15mm would be considered normal fisheye to many, so i wonder if it would work for general use on fullframe? im sure portraits would not be very ideal, unless you use a 1.3 0r other crop? this might actual make me consider a trade to the crop in order to get a sort of best of both worlds using this lens and perhaps the excellent 85mm 1.8 for the rest! a decent 50d can be had for very low price these days, or the true and tested 40d i previously owned! this way i will be able to use the 85mm 1.8 for most things, and the 8-15mm for fun and L quality offerings! i shall see! would using this as a way to achieve near fish eye on a crop and near 35mm be logical? i understand the f/4 is not large but wouldnt flash fix that? thanks