My main goal is to document, or add photos to my checklists. But mostly to expand my birding experience with a new skill. I'm also interested in documenting my backyard birds through the seasons. I've recently upgraded a bridge camera and phone camera to a mirrorless setup, Fujifilm X-T30 with the 55-200mm and 100-400mm lens. They say it's light weight, but i have nothing to compare that too. I wanted equipment that is easy to access and easy to manage when out in the woods or down by the river. And I think I have that. The 55-200mm lens seems to work perfect for my backyard bird watching.