http://www.nps.gov/yose/planyourvisit/horsetailfall.htm

So working for Best Buy we have a lot of people looking for lens and trying to compare. I shoot Nikon so don’t know every little detail to Canon or Sony and I don’t know every detail about Nikon because I don’t own them all. So to be able to expand beyond simple differences I found this website called http://lenshero.com. Awesome website to use if looking at comparing lens for the cost and quality. This will be added the first thing I do today at work. 

So if in the marketing for lens and want to see what is available for what price and quality and details check out http://lenshero.com for some awesome detailed reviews.