content: I don't know what to make of the Opteka Digital Duplicator. I am trying to use it on my Nikon D60 DSLR. I have a 55-200 mm zoom lens and an 18-55 mm. I have been trying to get a decently focused image, but, try as I may, I get a blurred image using either lens. I write this hoping somebody will tell me what I need to do.