Nikon 70-300 4.5-5.6 vs Sigma 70-200 2.8 Which to buy Part 1

When it comes to purchasing a lens what is the most important thing to look at, the f stop. The large the f stop the more light you are going to let in. The more light you let in the better your image quality tends to be.

In Part 1 I am helping Gizzy decide between the Nikon 70-300 f4.5-56 and the Sigma 70-200 2.8 II apo dc so on so forth. Watch part one to see which way I am steering him. Launching June 1