If you just into Milky Way photography, you may have heard of this advice “Using wide angle lens is better”. It is true and it is easier for you to capture your first photo of Milky Way. (I will explain why later) However, there’re time I would prefer to use a narrower focal length, such as 50mm focal length. At such focal lengths, I able to capture a GIGANTIC Milky Way in my photo, and that is because of a phenomenon called Lens Compression. So, what is Lens Compression? Le