Re: Raynox DCR-250 2.5x Super Macro Lens In reply toThrasher•May 25, 2011 I've used a Nikon 6T (+2.9) dioptor on a 70-300mm VR with good results. With this combination @ 300mm you can get very slightly better than 1:1 with about 10.5" of working distance. The Nikon 6T is...