Nikon AF-S NIKKOR 600mm f/4G ED VR Telephoto Prime Lens w/2x convert, case+ EUC | eBay
Amazon.com: iOgrapher 37mm 2X Telephoto Zoom Lens, Lens Attachment Accessories for Smartphone & Tablet Upgrade to Professional Camera for Photography & High Definition Video Recording with Lens Cap & Leather Case :
Nikon COOLPIX B600 2.2x High Grade Super Telephoto Lens (Includes Lens Adapter Ring) - Walmart.com
JINTU 420-1600mm f/8.3 Manual Telephoto Zoom Lens for Nikon SLR Camera – jintuphoto