After searching around...I haven't found many answers to my question. I'm interested in the Canon 70-200mm L series. The f/2.8 IS is a no no, way out of my range. I'd like to pay around £500-550 max, and I live in the UK. I'd like the lens for wildlife and the odd portrait. Perhaps Horse's Jumping and the like too. Now, I'm pondering wether to just go for the f/4, the f/4 IS or the f/2.8. I have a nice steady tripod, originally intended for Camcorders yet works fine with my camera, but a bit heavy to carry around all the time. Which do you think would be the best for my needs? I don't mind a refurb or used lens.:mrgreen: All the reviews say each is great, but having been into the local camera shop, they only had the f/4 and I couldn't try it out. Thanks you!