Hey, I'm Randy Stephens. In 2010 I retired from NASA and since have spent most of my time in Nature Photography, mostly birds and mammals. Currently I mainly use the Nikon D800E, D810, and D7200 with the D5 and D500 on order. The main lens I use are the Nikon 300mm VRII, 500mm FL, and 800mm FL. I recently sold my D4s because I like to crop many of my images more than the 16mp would allow. Since I sold it I have missed the ability to photograph in dim light and have the D5 on order. Since 1981 when our son was born I have used most of the Nikon bodies and lenses. Some of my nature images can be seen at "RKStephensPhotography.smugmug.com". Thanks for allowing me to be a member of NikonGear. I am 66 years old but want to continue learning both photography and image processing. Thanks, Randy