I've seen a lot of posts of people buying Nikon 'prime' lenses for their Letus. I'm about to order a Letus Extreme for my new Sony EX1, but I'm researching lenses. Are Nikons the best or would even something like a Tamron be suitable instead of the Nikon? I'm thinking HD resolution is still way, way lower in resolution than 1920x1080, which my camcorder has, so is the absolute best and most expensive glass really necessary, or is more of a status thing when hooking up to the Letus? I realize the fastest lens is a good idea, but the brand, sharpness, etc? For example, would a 300 new Tamron, like this one:
http://www.tamron.com/lenses/prod/17_35mm.asp be a good choice new? Thanks for any advice.