I still take a Sigma SD14 and a 120-400 os lens home every night hoping that I will get a new photo of my friend Bob the beaver. I have often spotted him swimming by but not in enough light to take a photograph. In the mean time I have been building my portfolio of deer portraits. For more information on this lens and the Sigma 150-500 please follow the link to our web-site and a article written by me regarding these lenses. www.contactphotoarts.com Bill