2xMacro-Converter with option to remove glass-element-set

<p>I have the vivitar 2x macro-converter and i want it without the lenses. I once have seen such a converter with option for easy removal of lens-set. where can i find or which brand is that? thanks</p>

<p>Just a thought ... Wouldn't that just simply be a cheap and commonly available extension tube?</p>

<p>Jim</p>

 

<p>Indeed it would be, but I do seem dimly to remember some version of teleconverter that could be thus converted.</p>

<p>If one is not needing electronics, I'd look for the Vivitar extension tubes, which were well made and came in a nice set. </p>

<p>I guess the OP wants a quality variable-length helical extension tube, which may indeed be a difficult-to-find item. I've seen a new product like this (a bit longer, and with electronic contacts) for sale a couple of years ago, but the reviews were dismal on account of poor mechanical quality. <br>

I recall some were using the Vivitar without the glass; though I've got no idea how difficult the surgery is, and if there happens to be vignetting with certain lenses (as with some other narrow-holed tubes used on FX). <br>

Similar TCs used to be sold by Panagor. </p>