Upload & Sell: Off
.....The ring surrounding this actually comes off, but it was hella stiff, and I had to resort to using the two ring-removal tools with a pair of thick leather gloves and a surface I could push down on for leverage. Finally I got it off, and the last two lenses came out.
I have some of these macro teleconverters. I take the teleconverter lenses away, and use this for different lenses, for example as wideangle macro lens with a Carl Zeiss Jena 35mm f/2.8 or for a projection lens as helicoid.
And on every single of these macro converters the inner lens tube is extremely hard to screw out :-/