Lens2scope , 7mm wide angle, for Nikon F lenses, black, straight eyepiece

I thought this was the perfect answer to my issue of not wanting to spend big money on a scope after having invested so much in powerful telephoto lenses. Sadly, it worked with some of my lenses, but not the ones I had wanted it to. There is some caveat about the types lenses for which this adapter is appropriate, but to be honest, I don't want to have to have that to worry about. Accordingly, I have to give this a pass since it ultimately wasn't useful for me. If you have "old" lenses, and can figure out if they're the type this eyepiece supports, it's a good way to get new life out of old glass, but only if you have the right equipment and the time required to research if it will work for what you have.

Well worth the money!! Clear magnification, just beautiful on old 600 f/4 and micro 200 f/4, haven't tried on others yet.Trimmed down and fitted an eyepiece extender for good isolated eye relief -- http://www.amazon.com/NuoYa001-38-39mm-Protector-Include-Reflective/dp/B00BULEB6CVendor sent quick, well packed, case included. Very nice, for near and far.