Here I tried the 30x SW eyepiece on the Swarovski. There is no vignetting with the camera on maximum 3.5x zoom and this gives a comfortable digiscoping magnification of about 2550mm 35mm equivalent. I've also included the orignial just resized and compressed. iso 50, f/4.9 , 1/70 exp comp plus 1.0 (This is the original) Nikon CP8400/Swarovski 80HD/30x SW eyepiece Cheangs adaptor with Nikon UR-E15 remote shutter release