Lens to Scope Conversion - Beginners Forum (No Astrophotography) - Cloudy Nights
How to make your own lens scope converter for ~ $35 - Nikon - Photo.net
Kenko Lens2scope Adapter for Nikon F Mount K-LS10-NFSB B&H Photo
Sold at Auction: Nikon Lens scope converter
What do I have here? Tamron Tele Macro 1:8 500MM + Nikon Lens Scope Converter - DSLR, Mirrorless & General-Purpose Digital Camera DSO Imaging - Cloudy Nights