A long lens is essential for wildlife photography but there’s more too using the long lens than just pointing it in the right direction. Long lenses have the ability to isolate the background by having a narrow depth of field. This is great to keep the focus on your subject. However, in low light situations, there is always going to be more noise and in that narrow depth of field, noise is going to become more obvious. This Mule Deer Buck came out at sundown and I wasn’t going to miss the opportunity. Even though I knew there was going to be more noise I increased the ISO, opened up to let in as much light as possible and made a couple of clicks.